SCHEDULE 14A INFORMATION (AMENDMENT NO. 1)


                   PROXY STATEMENT PURSUANT TO SECTION 14(a)
                     OF THE SECURITIES EXCHANGE ACT OF 1934

Filed by Registrant [X]

Filed by a Party other than the Registrant [ ]

Check the appropriate box:

[X]  Preliminary Proxy Statement

[ ]  Confidential, for Use of the Commission Only (as permitted by Rule
     14a-6(e)(2))

[ ]  Definitive Proxy Statement

[ ]  Definitive Additional Materials

[ ]  Soliciting Materials Pursuant to Rule 14a-11(c) or Rule 14a-12

                        SYNCOR INTERNATIONAL CORPORATION
--------------------------------------------------------------------------------
                (Name of Registrant as Specified in Its Charter)

                        SYNCOR INTERNATIONAL CORPORATION
--------------------------------------------------------------------------------
    (NAME OF PERSON(S) FILING PROXY STATEMENT, IF OTHER THAN THE REGISTRANT)

PAYMENT OF FILING FEE (CHECK THE APPROPRIATE BOX):

[ ]  No Fee Required.

[X]  Fee computed on table below per Exchange Act Rules 14a-6(i)(1) and 0-11.

     (1)  Title of each class of securities to which transaction applies:

          Common stock, par value $0.05 per share, of Syncor International
          Corporation ("Syncor Common Stock")
          ----------------------------------------------------------------------

     (2)  Aggregate number of securities to which transaction applies:

          25,351,145
          ----------------------------------------------------------------------

     (3)  Per unit price or other underlying value of transaction computed
          pursuant to Exchange Act Rule 0-11 (Set forth the amount on which the
          filing fee is calculated and state how it was determined):

          $25.76
          ----------------------------------------------------------------------

          Per unit price or other underlying value of transaction computed
          pursuant to Exchange Act Rule 0-11 (Set forth the amount on which the
          filing fee is calculated and state how it was determined): The
          underlying value of the transaction of $653,045,495.20 has been
          calculated pursuant to Exchange Act Rule 0-11 by determining the
          product of (i) $25.76 (the average of the high and low per share
          prices of Syncor Common Stock on July 11, 2002 on The Nasdaq National
          Market) times (ii) 25,351,145 (the aggregate number of shares of
          Syncor Common Stock outstanding). Based on an aggregate transaction
          value of $653,045,495.20 and the filing fee of $92 per million dollars
          of aggregate transaction value, the amount of the filing fee is
          $60,080.19.

     (4)  Proposed maximum aggregate value of transaction:

          $653,045,495.20
          ----------------------------------------------------------------------

     (5)  Total fee paid:

          $60,080.19
          ----------------------------------------------------------------------

[X]  Fee paid previously with preliminary materials.

    ----------------------------------------------------------------------------

[ ]  Check box if any part of the fee is offset as provided by Exchange Act Rule
     0-11(a)(2) and identify the filing for which the offsetting fee was paid
     previously. Identify the previous filing by Registration Statement number,
     or the Form or Schedule and the date of its filing.

     (1)  Amount previously paid:

        ------------------------------------------------------------------------

     (2)  Form, Schedule or Registration Statement No:

        ------------------------------------------------------------------------

     (3)  Filing Party:

        ------------------------------------------------------------------------

     (4)  Date Filed:

        ------------------------------------------------------------------------



                 SUBJECT TO COMPLETION DATED SEPTEMBER 3, 2002


                     Preliminary Proxy Statement/Prospectus

                                 [SYNCOR LOGO]


                                                              September   , 2002

Dear Stockholder:


     We cordially invite you to attend a special meeting of stockholders of
Syncor International Corporation to be held on October [  ], 2002, at 1:00 p.m.,
California time, at the Warner Center Hilton Hotel, 6360 Canoga Avenue in
Woodland Hills, California.



     At the special meeting, you will have a chance to vote on the merger of
Syncor with a subsidiary of Cardinal Health, Inc., a leading provider of
products and services supporting the health care industry. The Syncor board of
directors and we believe that the combination of Syncor's operations with
Cardinal Health's operations will create a stronger, more competitive company
with a continued commitment to growth. After completion of the merger, you will
have the opportunity to participate in the growth of the combined company as a
Cardinal Health shareholder.


     The Syncor board of directors has determined that the merger agreement and
the transactions contemplated by the merger agreement, including the merger
transaction with Cardinal Health, are advisable and fair to and in the best
interests of the Syncor stockholders and has approved the merger agreement and
the merger. THE SYNCOR BOARD OF DIRECTORS UNANIMOUSLY RECOMMENDS THAT YOU VOTE
"FOR" THE APPROVAL OF THE MERGER AGREEMENT AT THE SPECIAL MEETING.


     If the merger is completed you will receive 0.52 of a Cardinal Health
common share for each Syncor share that you own. You will also receive cash in
lieu of any fractional Cardinal Health common shares.



     The accompanying document explains the proposed merger in greater detail
and provides specific information concerning the special meeting. Please read
these materials carefully. YOU SHOULD ALSO CAREFULLY CONSIDER THE RISK FACTORS
RELATING TO THE PROPOSED MERGER DESCRIBED BEGINNING ON PAGE 13.



     Your vote is very important. Instructions regarding how to vote your shares
can be found on page 18.


Cordially,

MONTY FU                                  ROBERT G. FUNARI
Chairman of the Board                     President and Chief Executive Officer


     NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES
COMMISSION HAS APPROVED OR DISAPPROVED OF THE SECURITIES TO BE ISSUED OR
DETERMINED IF THIS DOCUMENT IS TRUTHFUL OR COMPLETE. ANY REPRESENTATION TO THE
CONTRARY IS A CRIMINAL OFFENSE. THIS DOCUMENT DOES NOT CONSTITUTE AN OFFER TO
SELL OR A SOLICITATION OF AN OFFER TO BUY ANY SECURITIES IN ANY JURISDICTION
WHERE AN OFFER OR SOLICITATION WOULD BE ILLEGAL.


                             ---------------------


     This document is dated September [  ], 2002 and is first being mailed to
stockholders on or about September [  ], 2002.


                                        ii


                      REFERENCES TO ADDITIONAL INFORMATION


     This document incorporates important business and financial information
about Cardinal Health and Syncor from documents that are not included with this
document. This information is available to you, without charge, upon your
written or oral request. You can obtain documents incorporated by reference in
this document (with the exception of certain exhibits to those documents) by
requesting them in writing or by telephone from the appropriate company at the
following address:



                                              
             Cardinal Health, Inc.                   Syncor International Corporation
              7000 Cardinal Place                           6464 Canoga Avenue
              Dublin, Ohio 43017                   Woodland Hills, California 91367-2407
                (614) 757-5000                                (818) 737-4000
Attention: Vice President -- Investor Relations  Attention: Director -- Investor Relations



     IF YOU WOULD LIKE TO REQUEST DOCUMENTS, PLEASE DO SO BY SEPTEMBER [  ],
2002 IN ORDER TO RECEIVE THEM BEFORE THE SPECIAL MEETING. SEE "WHERE YOU CAN
FIND MORE INFORMATION" ON PAGE 83.


                                 IMPORTANT NOTE


     WE HAVE NOT AUTHORIZED ANY PERSON TO PROVIDE YOU WITH ANY INFORMATION OR TO
MAKE ANY REPRESENTATION ABOUT THE PROPOSED MERGER OR OUR COMPANIES THAT DIFFERS
FROM OR ADDS TO THE INFORMATION CONTAINED IN THIS DOCUMENT OR IN ANY OTHER
DOCUMENTS FILED PUBLICLY WITH THE UNITED STATES SECURITIES AND EXCHANGE
COMMISSION. THEREFORE, YOU SHOULD NOT RELY ON ANY DIFFERENT OR ADDITIONAL
INFORMATION.



     IF YOU LIVE IN A JURISDICTION WHERE IT IS UNLAWFUL TO OFFER TO EXCHANGE OR
SELL, OR TO ASK FOR OFFERS TO EXCHANGE OR BUY, THE SECURITIES OFFERED BY THIS
DOCUMENT, OR TO ASK FOR PROXIES, OR IF YOU ARE A PERSON TO WHOM IT IS UNLAWFUL
TO DIRECT THESE ACTIVITIES, THEN THE OFFER PRESENTED AND PROXY SOLICITATION MADE
BY THIS DOCUMENT DO NOT EXTEND TO YOU.



     THE INFORMATION CONTAINED IN THIS DOCUMENT SPEAKS ONLY AS OF THE DATE
INDICATED ON THE COVER OF THIS DOCUMENT, UNLESS THE INFORMATION SPECIFICALLY
INDICATES THAT ANOTHER DATE APPLIES, OR, IN THE CASE OF DOCUMENTS INCORPORATED
BY REFERENCE, THE DATES OF THOSE DOCUMENTS. SEE "FORWARD-LOOKING STATEMENTS" ON
PAGE 15 OF THIS DOCUMENT.



     WITH RESPECT TO THE INFORMATION CONTAINED IN THIS DOCUMENT, CARDINAL HEALTH
HAS SUPPLIED THE INFORMATION CONCERNING CARDINAL HEALTH AND MUDHEN MERGER CORP.,
AND SYNCOR HAS SUPPLIED THE INFORMATION CONCERNING SYNCOR.


     IN ADDITION, IF YOU HAVE ANY QUESTIONS ABOUT THE MERGER OR VOTING
PROCEDURES, YOU MAY CONTACT:

                        [MACKENZIE PARTNERS, INC. LOGO]
                               105 MADISON AVENUE
                            NEW YORK, NEW YORK 10016
                         (212) 929-5500 (CALL COLLECT)
                      E-MAIL: proxy@mackenziepartners.com
                                       or
                         CALL TOLL-FREE (800) 322-2885

                                       iii


                        SYNCOR INTERNATIONAL CORPORATION

                             ---------------------

                   NOTICE OF SPECIAL MEETING OF STOCKHOLDERS

                              OCTOBER [   ], 2002


To the Stockholders of Syncor:


     A special meeting of stockholders of Syncor International Corporation will
be held on October [  ], 2002, at 1:00 p.m., California time, at the Warner
Center Hilton Hotel, 6360 Canoga Avenue in Woodland Hills, California. The
purposes of the special meeting are to:



          1.  Vote on a proposal to approve the Agreement and Plan of Merger,
     dated as of June 14, 2002, among Cardinal Health, Inc., Mudhen Merger
     Corp., a wholly owned subsidiary of Cardinal Health, and Syncor. Pursuant
     to the merger agreement, Mudhen Merger Corp. will merge with and into
     Syncor upon the terms and subject to the conditions set forth in the merger
     agreement, as more fully described in the document that accompanies this
     notice. If the merger agreement is approved and the merger and the related
     transactions contemplated by the merger agreement are consummated, each
     share of Syncor common stock will become 0.52 of a Cardinal Health common
     share.


          2.  Adjourn the special meeting, if necessary, to permit further
     solicitation of proxies in the event there are not sufficient votes at the
     time of the special meeting to approve the merger agreement proposal.

          3.  Act on any other matters that may properly come before the special
     meeting.


     Your board of directors has fixed the close of business on September [  ],
2002, as the record date for determining stockholders entitled to notice of and
to vote at the special meeting. The merger agreement proposal requires the
affirmative vote of the holders of a majority of the outstanding Syncor shares
entitled to vote on the merger agreement proposal. Stockholders owning
approximately [     ]% of the outstanding Syncor shares as of the record date
already have agreed in writing to vote in favor of the approval of the merger
agreement proposal.


     You are cordially invited to attend the special meeting. Whether or not you
plan on attending the special meeting, please vote by signing, dating and
returning the enclosed proxy card or submitting a proxy through the Internet or
by telephone. Completing a proxy now will not prevent you from being able to
vote at the special meeting by attending in person and casting a vote. However,
if you do not return the proxy or vote in person at the special meeting, the
effect will be the same as a vote against the merger agreement proposal.

                                          By Order of the Board of Directors



                                          EDWIN A. BURGOS
                                          Secretary


September [  ], 2002

Woodland Hills, California

                                        iv





     To find any one of the principal sections identified below, simply bend
this document slightly to expose the black tabs and open the document to the tab
that corresponds to the title of the section you wish to read.


                                                         TABLE OF CONTENTS
                                                       QUESTIONS & ANSWERS
                                                                   SUMMARY
                                                              RISK FACTORS
                                                       THE SPECIAL MEETING
                                                                THE MERGER
                                                      THE MERGER AGREEMENT
                             MATERIAL U.S. FEDERAL INCOME TAX CONSEQUENCES
                                                             THE COMPANIES
                              DESCRIPTION OF CARDINAL HEALTH CAPITAL STOCK
                              COMPARISON OF SHAREHOLDER/STOCKHOLDER RIGHTS
                                                         OTHER INFORMATION
                                                                   ANNEXES

                                        v


                               TABLE OF CONTENTS




                                          PAGE
                                          ----
                                      
REFERENCES TO ADDITIONAL INFORMATION...    iii
NOTICE OF SPECIAL MEETING OF
  STOCKHOLDERS.........................    iv
QUESTIONS AND ANSWERS ABOUT THE
  CARDINAL HEALTH/SYNCOR MERGER
  TRANSACTION..........................     1
SUMMARY................................     2
SELECTED HISTORICAL FINANCIAL
  INFORMATION..........................     5
COMPARATIVE PER COMMON SHARE
  INFORMATION..........................    10
COMPARATIVE MARKET PRICE AND DIVIDEND
  DATA.................................    12
RISK FACTORS...........................    13
FORWARD-LOOKING STATEMENTS.............    15
THE SPECIAL MEETING....................    17
  Time and Place of the Meeting........    17
  Matters to be Considered at the
    Special Meeting....................    17
  Record Date..........................    17
  Share Ownership......................    17
  Quorum...............................    17
  Vote Required........................    18
  Voting and Revocation of Proxies.....    18
  Solicitation of Proxies..............    19
THE MERGER.............................    20
  Background of the Merger.............    20
  Reasons for the Merger;
    Recommendation of the Syncor Board
    of Directors.......................    23
  Opinion of Syncor's Financial
    Advisor............................    28
  Miscellaneous........................    33
  Interests of Syncor's Directors and
    Officers in the Merger.............    33
  Accounting Treatment of the
    Transactions.......................    36
  Appraisal Rights.....................    36
  Regulatory Approvals.................    36
  Federal Securities Law
    Consequences.......................    37
THE MERGER AGREEMENT...................    38
  The Merger...........................    38
  Charter, By-laws, Directors, and
    Officers...........................    38
  Conversion of Securities.............    38
  Exchange Procedures..................    39
  Representations and Warranties.......    39
  HSR Act Filings; Reasonable Efforts;
    Notification.......................    40
  Tax Treatment........................    42
  Public Announcements.................    42
  Conveyance Taxes.....................    42
  Preparation of Registration
    Statement..........................    42
  Conduct of Cardinal Health's
    Operations.........................    43
  Indemnification; Directors' and
    Officers' Insurance................    43






                                          PAGE
                                          ----
                                      
  Mudhen Merger Corp...................    43
  New York Stock Exchange Listing......    44
  Employees and Employee Benefits......    44
  The Special Meeting..................    44
  Conduct of Syncor's Operations.......    45
  No Solicitation......................    47
  Affiliates of Syncor.................    48
  Conditions to the Obligations of Each
    Party..............................    48
  Conditions to the Obligations of
    Syncor.............................    49
  Conditions to the Obligations of
    Cardinal Health and Mudhen Merger
    Corp. .............................    50
  Material Adverse Effect..............    50
  Termination..........................    51
  Effect of Termination................    52
  Amendment............................    53
  Extension; Waiver....................    53
  Expenses.............................    53
  Syncor Rights Agreement Amendment....    53
THE SUPPORT/VOTING AGREEMENTS..........    54
MATERIAL U.S. FEDERAL INCOME TAX
  CONSEQUENCES.........................    55
THE COMPANIES..........................    57
  Business of Syncor...................    57
  Business of Cardinal Health..........    59
  Mudhen Merger Corp...................    61
DESCRIPTION OF CARDINAL HEALTH CAPITAL
  STOCK................................    62
  Authorized and Outstanding Shares....    62
  Voting...............................    62
  Anti-Takeover Provisions of Ohio
    Revised Code.......................    63
  Transfer Agent and Registrar.........    63
COMPARISON OF SHAREHOLDER/ STOCKHOLDER
  RIGHTS...............................    64
OTHER ACTION TO BE TAKEN AT THE SPECIAL
  MEETING..............................    81
LEGAL MATTERS..........................    81
INDEPENDENT PUBLIC ACCOUNTANTS.........    81
OTHER MATTERS..........................    82
STOCKHOLDER PROPOSALS..................    82
WHERE YOU CAN FIND MORE INFORMATION....    83
Agreement and Plan of Merger, dated
  June 14, 2002, by and among Cardinal
  Health, Inc., Mudhen Merger Corp. and
  Syncor International Corporation.....  Annex A
Opinion of Salomon Smith Barney Inc.,
  dated June 14, 2002..................  Annex B



                                        vi


             QUESTIONS AND ANSWERS ABOUT THE CARDINAL HEALTH/SYNCOR
                               MERGER TRANSACTION


     We intend the following questions and answers to provide brief answers to
frequently asked questions concerning the proposed merger. These questions and
answers do not, and are not intended to, address all the questions that may be
important to Syncor stockholders. You should read the summary and the remainder
of this document and all of the annexes carefully.


Q:     WHAT DO I HAVE TO DO IN CONNECTION WITH THE MERGER?

A:     We cannot complete the merger, unless, among other things, Syncor
stockholders vote to approve the merger agreement. Syncor is holding a special
meeting at which you are entitled to vote on the merger agreement.

       You may choose one of the following ways to cast your vote:


-  by completing and returning the accompanying proxy card in the enclosed
   postage-paid envelope;


-  through the Internet or by telephone, as outlined on the accompanying proxy
   card; or

-  by appearing and voting in person at the special meeting.


If the merger agreement is approved by Syncor stockholders and the other
conditions to the proposed merger are satisfied, you will receive additional
information with respect to your shares of Syncor common stock.





Q:     HOW DO I VOTE MY SYNCOR SHARES IF MY SYNCOR SHARES ARE HELD IN "STREET
NAME"?



A:     You should contact your broker. Your broker can give you directions on
how to vote your Syncor shares. Your broker cannot vote your Syncor shares
unless he or she receives appropriate instructions from you.


Q:     MAY I CHANGE MY VOTE EVEN AFTER SUBMITTING A PROXY?


A:     Yes. If you are the record owner of your Syncor shares and you want to
change your vote, you may do so at any time before the special meeting by
sending to the Secretary of Syncor a written notice saying that you are revoking
your proxy or by submitting a later-dated proxy by mail or telephone or through
the Internet with your new vote. Alternatively, you can attend the special
meeting in person and vote your Syncor shares yourself at the special meeting.
If you own your Syncor shares in street name, you should contact your broker
regarding the procedures for changing your vote.



Q:     SHOULD I SEND IN MY SYNCOR STOCK CERTIFICATES NOW?



A:     No. After the merger is completed, we will send you written instructions,
including a letter of transmittal, explaining how to exchange your Syncor stock
certificates for stock certificates representing Cardinal Health common shares.
Please do not send in any Syncor stock certificates until you receive these
written instructions and the letter of transmittal.



Q:     WHEN DO YOU EXPECT TO COMPLETE THE PROPOSED MERGER?



A:     We expect to complete the proposed merger as quickly as possible once all
the conditions to the merger, including obtaining the approval of Syncor
stockholders, are fulfilled. Fulfilling some of these conditions is not entirely
within our control. We currently expect to complete the proposed merger late
this year.


Q:     IF I HAVE MORE QUESTIONS ABOUT THE PROPOSED MERGER, WHERE CAN I FIND
ANSWERS?


A:     In addition to reading this document, its annexes and the documents we
have incorporated in it by reference, you can find more information about the
proposed merger in Cardinal Health's and Syncor's public filings with the SEC,
the New York Stock Exchange and The Nasdaq National Market. See "Where You Can
Find More Information." If you require assistance in changing or revoking a
proxy or if you have any other questions about the merger, please contact:


[MACKENZIE PARTNERS, INC. LOGO]

105 Madison Avenue
New York, New York 10016
(212) 929-5500 (Call Collect)
or
CALL TOLL-FREE (800) 322-2885
or
E-mail: proxy@mackenziepartners.com

                                        1


                                    SUMMARY


     This brief summary highlights what we believe is the most important
information about the merger transaction. You should carefully read the entire
document and the information incorporated by reference in this document for a
complete understanding of the transactions and our companies' businesses. We
have provided a page reference for each item in this summary so that you can
easily find additional information about that item.



THE COMPANIES



SYNCOR INTERNATIONAL CORPORATION



     As you know, Syncor is a leading provider of high-technology health care
services concentrating on nuclear pharmacy services, medical imaging, niche
manufacturing and radiotherapy. Syncor is headquartered in Woodland Hills,
California, employs approximately 4,760 people and has annual revenues from
continuing operations of approximately $600 million. Syncor announced on June
14, 2002, that it intends to sell its medical imaging services division.



CARDINAL HEALTH, INC.



     Cardinal Health is a leading provider of products and services supporting
the health care industry. Cardinal Health offers a broad spectrum of products
and services to both upstream customers, including pharmaceutical, biotech,
medical/ surgical and lab manufacturers, and downstream customers, including
pharmacies and hospitals, physician offices and other sites of care.



     Cardinal Health offers these products and services through four primary
business units:


- pharmaceutical distribution and provider services;

- automation and information services;

- medical-surgical products and services; and

- pharmaceutical technologies and services.


Headquartered in Dublin, Ohio, Cardinal Health employs more than 49,000 people
on five continents, with annual revenues exceeding $44 billion.



RECORD DATE; VOTE REQUIRED (PAGES 17 AND 18)



     You can vote at the special meeting if you owned Syncor shares at the close
of business on the record date of September [  ], 2002. On the record date,
there were approximately [  ] Syncor shares outstanding and entitled to vote.
You can cast one vote for each Syncor share you then owned. In order to approve
the merger agreement, the holders of a majority of all outstanding Syncor shares
entitled to vote with respect to the merger agreement must vote in favor of the
merger agreement.



     Each of the officers and directors of Syncor, owning approximately [  ]% of
the Syncor shares entitled to vote, are expected to vote in favor of the merger.
Cardinal Health's directors and executive officers and their affiliates do not
hold any Syncor shares.



OUR REASONS FOR THE MERGER (PAGE 23)



     To understand the reasons why the boards of directors for both companies
recommended the merger, see the factors discussed on page [29].



OPINION OF SYNCOR'S FINANCIAL ADVISOR (PAGE 28)



     In connection with the merger, the Syncor board of directors received a
written opinion from Salomon Smith Barney Inc., Syncor's financial advisor, as
to the fairness, from a financial point of view, of the exchange ratio provided
for in the merger.



     We have included the full text of Salomon Smith Barney's written opinion
dated June 14, 2002 as Annex B to this document. We encourage you to read this
opinion carefully in its entirety for a description of the assumptions made,
procedures followed, matters considered and limitations on the review
undertaken. Salomon Smith Barney's opinion is addressed to the Syncor board of
directors and does not constitute a recommendation to any stockholder with
respect to how to vote on the proposed merger.



INTERESTS OF SYNCOR'S DIRECTORS AND EXECUTIVE OFFICERS IN THE MERGER THAT ARE
DIFFERENT FROM YOUR INTERESTS (PAGE 33)



     Certain of Syncor's executive officers and directors may be deemed to have
interests in the merger that are different from, or in addition to, your
interests. Syncor executives Monty Fu,


                                        2



Robert G. Funari, Rodney E. Boone, David I. Ward, Jack L. Coffey, Sheila H.
Coop, William P. Forster, Lewis W. Terry, John S. Baumann and Haig Bagerdjian
are each parties to severance agreements that will provide payments and benefits
if their employment is terminated under specified circumstances after the
merger. In addition, upon Syncor stockholder approval of the merger, Syncor
stock options granted prior to June 14, 2002 held by all executive officers and
directors of Syncor will fully vest and become exercisable. An additional 31,205
Syncor options that were issued to non-employee directors after the date of the
merger agreement will also vest upon Syncor stockholder approval of the merger
agreement.



     The Syncor board of directors was aware of these additional interests, and
considered them when it approved the merger agreement and recommended that
Syncor stockholders approve the merger agreement.



APPRAISAL RIGHTS (PAGE 36)



     Under Delaware law, Syncor stockholders are not entitled to any appraisal
or dissenters' rights in connection with the merger.



MERGER CONSIDERATION; CONVERSION OF SHARES (PAGE 38)



     When we complete the proposed merger, your Syncor shares will be exchanged
for Cardinal Health common shares. Each Syncor share will become 0.52 of a
Cardinal Health common share with cash being paid in place of any fractional
shares.


     For example, a holder of 110 shares of Syncor common stock will receive 57
Cardinal Health common shares, plus a cash payment with respect to 0.20 of a
Cardinal Health common share.


     Since the number of Cardinal Health common shares that you will receive in
the merger is determined by a fixed exchange ratio, the value you will receive
in the merger will fluctuate.



SYNCOR STOCK OPTIONS (PAGE 38)



     The stock options owned by Syncor employees will be exchanged for stock
options of Cardinal Health, subject to adjustments in exercise price and the
number of shares to reflect the exchange ratio of the merger. Options awarded to
Syncor employees before June 14, 2002 will become exercisable immediately upon
approval of the merger by Syncor stockholders. Subject to limited exceptions,
all other options are subject to the same timing restrictions contained in the
original grant.


MANAGEMENT AND OPERATIONS AFTER THE MERGER


     After the merger, the Cardinal Health board of directors will continue to
manage the business of Cardinal Health, which then will include the business of
Syncor as a wholly owned subsidiary. Much of Syncor's current management is
expected to remain in place. After completion of the merger, Syncor will be part
of the Pharmaceutical Distribution and Provider Services division of Cardinal
Health.



CONDITIONS TO COMPLETION OF THE MERGER (PAGE 48)



     The completion of the merger requires Cardinal Health and Syncor to satisfy
a number of conditions including:



  - each of the representations and warranties of the two companies in the
    merger agreement being true and correct;



  - approval of the merger agreement by the holders of a majority of the
    outstanding Syncor shares;



  - absence of any governmental or judicial body enjoining the merger;



  - an opinion of counsel to the effect that the merger will constitute a
    reorganization and no gain or loss will be recognized by Syncor stockholders
    except with respect to cash received in lieu of a fractional Cardinal Health
    common share; and



  - the absence of any event that is likely to have a material adverse effect.



The conditions, other than your stockholder approval, may be waived at the
election of the relevant company.



TERMINATION OF THE MERGER AGREEMENT (PAGE 51)



     One of the companies may be able to terminate the merger agreement without
completing the merger, even if Syncor stockholders have

                                        3



approved the merger agreement. The most important examples follow:



  - it becomes illegal to complete the merger;



  - the merger is not completed by December 31, 2002;



  - one of the companies breaches an important provision of the merger
    agreement; and



  - the Syncor board of directors changes its recommendation supporting the
    merger or does not reaffirm its support of the merger within 20 business
    days after being asked by Cardinal Health to do so.



TERMINATION FEES (PAGE 52)



     Syncor will pay Cardinal Health up to $4,000,000 in reimbursement of
Cardinal Health's merger-related expenses if



  - either of us terminates the merger agreement because the Syncor stockholders
    do not approve the merger agreement; or



  - the Syncor board of directors changes its recommendation supporting the
    merger or does not reaffirm its support of the merger within 20 business
    days after being asked by Cardinal Health to do so and Cardinal Health
    terminates the merger.



     Further, if Syncor abandons this merger in favor of another offer, it may
owe Cardinal Health a payment of approximately $12 million or $24 million,
depending upon the particular circumstances.



     Otherwise, we will each pay our own fees and expenses related to the
proposed merger.



WAIVER AND AMENDMENT (PAGE 53)



     We may jointly amend the merger agreement. Each of us may waive our right
to require the other party to adhere to the terms and conditions of the merger
agreement. However, we may amend the merger agreement after Syncor stockholders
approve the merger agreement only if the amendment does not require the further
approval of Syncor stockholders under law or if Syncor stockholders approve the
amendment.



SUPPORT/VOTING AGREEMENTS (PAGE 54)



     In connection with the merger, Cardinal Health has entered into
support/voting agreements with Monty Fu, Chairman of the Board of Syncor, and
Robert G. Funari, President, Chief Executive Officer and a director of Syncor.
As of the record date, these directors of Syncor beneficially owned
approximately [  ] million Syncor shares representing approximately [  ]% of the
outstanding Syncor shares. Of this amount, [  ]% were unexercised Syncor
options. Under the support/voting agreements, each of these directors has agreed
to vote all of his Syncor shares in favor of the merger agreement, but the
directors are not required to exercise their Syncor options.



MATERIAL U.S. FEDERAL INCOME TAX CONSEQUENCES (PAGE 55)



     Counsel has opined that the merger will be a reorganization for U.S.
federal income tax purposes, if completed in the manner expected, meaning that
Syncor stockholders will not recognize gain or loss for U.S. federal income tax
purposes in the merger, except for gain or loss recognized because of cash
received instead of fractional Cardinal Health common shares.



SIGNIFICANT DIFFERENCES IN THE RIGHTS OF SYNCOR STOCKHOLDERS AND CARDINAL HEALTH
SHAREHOLDERS (PAGE 64)



     Syncor's certificate of incorporation and by-laws and the Delaware General
Corporation Law govern the rights of Syncor stockholders. Cardinal Health's
articles of incorporation and code of regulation and the Ohio General
Corporation Law govern the rights of Cardinal Health shareholders. Syncor
stockholders will become Cardinal Health shareholders after completion of the
merger and their rights will be governed accordingly. The merger will not affect
Cardinal Health's articles of incorporation or its code of regulations.


                                        4


                   SELECTED HISTORICAL FINANCIAL INFORMATION


     The following financial information is to aid you in your analysis of the
financial aspects of the merger. We present below selected historical financial
data of Syncor as of and for each of the five years ended December 31, 2001 and
as of and for the six months ended June 30, 2002 and 2001, and of Cardinal
Health as of and for each of the five years ended June 30, 2001 and as of and
for the nine months ended March 31, 2002. The historical income statement of
Syncor for the six months ended June 30, 2002 and 2001, and the historical
balance sheet data as of June 30, 2002 are derived from the unaudited financial
statements incorporated by reference in this document. The income statement of
Cardinal Health for the nine months ended March 31, 2002 and 2001, and the
balance sheet data as of March 31, 2002 and 2001, are derived from the unaudited
financial statements incorporated by reference in this document.



     We derived the historical income statement data, as restated for
discontinued operations, for Syncor for the years ended December 31, 2001, 2000
and 1999, and the historical balance sheet data, as restated for discontinued
operations, as of December 31, 2001 and 2000, from audited consolidated
financial statements, which we have incorporated by reference in this document.
We derived the historical income statement data, as restated for discontinued
operations, for Syncor for the years ended December 31, 1998 and 1997, and the
historical balance sheet data, as restated for discontinued operations, as of
December 31, 1999, 1998 and 1997, from audited consolidated financial
statements, which, in accordance with SEC rules, we have not incorporated by
reference in this document.



     We derived the income statement data for Cardinal Health for the years
ended June 30, 2001, 2000 and 1999, and the balance sheet data as of June 30,
2001 and 2000, from audited consolidated financial statements, which we have
incorporated by reference in this document. We derived the income statement data
for Cardinal Health for the years ended June 30, 1998 and 1997, and the balance
sheet data as of June 30, 1999, 1998 and 1997, from audited consolidated
financial statements, which, in accordance with SEC rules, we have not
incorporated by reference in this document.


                                        5



     The historical financial data, as restated for discontinued operations,
that appear below are only a summary, and you should read them in conjunction
with the historical financial statements and related notes of Syncor. Syncor's
historical financial statements are included in documents filed with the SEC.
See "Where You Can Find More Information" on page 83.


                        SYNCOR INTERNATIONAL CORPORATION
                    (IN MILLIONS, EXCEPT PER SHARE AMOUNTS)




                                                                                         AT OR FOR THE SIX
                                                                                           MONTHS ENDED
                                         AT OR FOR THE FISCAL YEAR ENDED DECEMBER 31,        JUNE 30,
                                         ---------------------------------------------   -----------------
                                          1997     1998    1999(2)   2000(2)   2001(2)    2001      2002
                                         ------   ------   -------   -------   -------   -------   -------
                                                                              
EARNINGS DATA:
Total revenue from continuing
  operations...........................  $379.9   $410.5   $457.2    $517.6    $598.1    $284.5    $362.9
Net earnings (loss):
  - Continuing operations..............  $ 10.4   $ 13.9   $ 18.2    $ 28.0    $ 34.5    $ 19.6    $ 18.9
  - Discontinued operations, net of
     taxes.............................     0.7       --      1.0       1.5       3.4       1.6     (23.0)
                                         ------   ------   ------    ------    ------    ------    ------
  - Net earnings (loss)................  $ 11.1   $ 13.9   $ 19.2    $ 29.5    $ 37.9    $ 21.2    $ (4.1)
Earnings (loss) per share of Syncor
  common stock:(1)
  Basic
  - Continuing operations..............  $ 0.52   $ 0.65   $ 0.78    $ 1.17    $ 1.40    $ 0.80    $ 0.76
  - Discontinued operations, net of
     taxes.............................    0.03       --     0.04      0.06      0.14      0.07     (0.93)
                                         ------   ------   ------    ------    ------    ------    ------
  - Net income (loss)..................  $ 0.55   $ 0.65   $ 0.82    $ 1.23    $ 1.54    $ 0.87    $(0.17)
  Diluted
  - Continuing operations..............  $ 0.51   $ 0.61   $ 0.71    $ 1.05    $ 1.28    $ 0.73    $ 0.71
  - Discontinued operations, net of
     taxes.............................    0.03       --     0.04      0.06      0.12      0.05     (0.86)
                                         ------   ------   ------    ------    ------    ------    ------
  - Net income (loss)..................  $ 0.54   $ 0.61   $ 0.75    $ 1.11    $ 1.40    $ 0.78    $(0.15)
Cash dividends declared per share of
  Syncor common stock..................  $   --   $   --   $   --    $   --    $   --    $   --    $   --
BALANCE SHEET DATA:
Total assets
  - Continuing operations..............  $163.7   $161.5   $177.4    $259.9    $304.6    $253.3    $327.7
  - Discontinued operations............     0.9     95.1    135.2     210.7     283.2     259.9     283.5
                                         ------   ------   ------    ------    ------    ------    ------
  - Total assets.......................  $164.6   $256.6   $312.6    $470.6    $587.8    $513.2    $611.2
Long-term obligations, less current
  portion
  - Continuing operations..............  $ 17.3   $  6.5   $  0.8    $ 19.2    $ 35.1    $ 19.3    $ 31.5
  - Discontinued operations............     0.0     63.8     75.5     118.7     175.5     165.2     163.4
                                         ------   ------   ------    ------    ------    ------    ------
  - Total long-term obligations, less
     current portion...................  $ 17.3   $ 70.3   $ 76.3    $137.9    $210.6    $184.5    $194.9
Stockholders' equity...................  $ 87.4   $111.4   $140.3    $185.9    $234.8    $213.8    $230.3



---------------


(1) Net earnings (loss) per share of Syncor common stock have been adjusted to
    retroactively reflect all stock splits through June 30, 2002.



(2) In July 2001, the Financial Accounting Standards Board, which we refer to as
    the FASB, issued Statement of Accounting Standards, which we refer to as
    SFAS, No. 141 "Business Combinations" and SFAS No. 142 "Goodwill and Other
    Intangible Assets." SFAS No. 141 requires that the purchase method of
    accounting be used for all business combinations completed after June 30,
    2001, clarifies the recognition of intangible assets separately from
    goodwill and requires that unallocated negative goodwill be written off
    immediately as an extraordinary gain. SFAS No. 142, which was effective for
    fiscal years beginning after December 15, 2001, requires that ratable
    amortization of goodwill be replaced with periodic tests of goodwill
    impairment and that intangible assets, other than goodwill, which have
    determinable useful lives, be amortized over their useful lives. Syncor has
    adopted these accounting standards effective January 1, 2002. There were no
    adjustments to identifiable intangible assets' useful lives or recorded
    balances nor any adjustment to goodwill as a result of the adoption of SFAS
    No. 142.


                                        6


    The following table displays Syncor's net earnings and per share amounts for
    fiscal years 1999, 2000 and 2001 as adjusted for amortization of intangible
    assets and goodwill.



                                                               FOR THE FISCAL YEAR ENDED
                                                                     DECEMBER 31,
                                                              ---------------------------
                                                               1999      2000      2001
                                                              -------   -------   -------
                                                               (IN MILLIONS, EXCEPT PER
                                                                    SHARE AMOUNTS)
                                                                         
Net earnings................................................   $21.6     $31.8     $41.7
Basic earnings per share....................................   $0.93     $1.33     $1.70
Diluted earnings per share..................................   $0.85     $1.19     $1.54


                                        7



     The historical financial data that appear below are only a summary, and you
should read them in conjunction with the historical financial statements and
related notes of Cardinal Health. Cardinal Health's historical financial
statements are included in documents filed with the SEC. See "Where You Can Find
More Information" on page 83.


                              CARDINAL HEALTH INC.
                    (IN MILLIONS, EXCEPT PER SHARE AMOUNTS)



                                                                                               AT OR FOR THE
                                                                                             NINE MONTHS ENDED
                                     AT OR FOR THE FISCAL YEAR ENDED JUNE 30,(1)               MARCH 31,(1)
                              ----------------------------------------------------------   ---------------------
                                1997       1998(2)    1999(2)(5)    2000(5)     2001(5)      2001        2002
                              ---------   ---------   ----------   ---------   ---------   ---------   ---------
                                                                                  
EARNINGS DATA:
Revenue:
  Operating revenue.........  $18,123.2   $20,844.8   $25,682.5    $30,257.8   $38,660.1   $28,405.8   $32,628.4
  Bulk deliveries to
     customer warehouses....    5,659.3     7,541.1     7,050.4      8,092.1     9,287.5     7,140.8     5,479.1
                              ---------   ---------   ---------    ---------   ---------   ---------   ---------
Total revenue...............  $23,782.5   $28,385.9   $32,732.9    $38,349.9   $47,947.6   $35,546.6   $38,107.5
Net earnings before
  cumulative effect of
  change in accounting
  principle.................  $   369.0   $   474.3   $   499.3    $   717.8   $   857.4   $   604.1   $   830.0
Earnings per Cardinal Health
  common share before
  cumulative effect of
  change in accounting
  principle:(3)
  Basic.....................  $    0.87   $    1.10   $    1.14    $    1.64   $    1.93   $    1.37   $    1.85
  Diluted...................  $    0.85   $    1.07   $    1.12    $    1.60   $    1.88   $    1.33   $    1.81
Cash dividends declared per
  Cardinal Health common
  share(3)(4)...............  $   0.042   $   0.049   $   0.067    $   0.070   $   0.085   $   0.060   $   0.075
BALANCE SHEET DATA:
Total assets................  $ 7,578.1   $ 8,876.8   $ 9,682.7    $12,024.1   $14,642.4   $14,230.5   $16,256.5
Long-term obligations, less
  current portion...........  $ 1,420.7   $ 1,362.2   $ 1,224.5    $ 1,524.5   $ 1,871.0   $ 2,169.8   $ 2,464.0
Shareholders' equity........  $ 2,940.0   $ 3,389.9   $ 3,894.6    $ 4,400.4   $ 5,437.1   $ 5,092.2   $ 6,209.0


---------------

(1) Amounts reflect business combinations and the impact of merger-related costs
    and other special charges in all periods presented. See Note 2 of "Notes to
    Consolidated Financial Statements" incorporated by reference to Cardinal
    Health's 10-K for the fiscal year ended June 30, 2001 for a further
    discussion of merger-related costs and other special charges affecting
    fiscal 2001, 2000 and 1999. Fiscal year 1998 amounts reflect the impact of
    merger-related charges and other special charges of $57.8 million ($19.5
    million, net of tax). Fiscal year 1997 amounts reflect the impact of
    merger-related charges of $50.9 million ($36.6 million, net of tax). See
    Note 5 of "Notes to Condensed Consolidated Financial Statements"
    incorporated by reference to Cardinal Health's Form 10-Q for the nine months
    ended March 31, 2002 for further discussion of merger-related costs and
    other special charges affecting the nine months ended March 31, 2002 and
    2001.

(2) Amounts above do not reflect the impact of pro forma adjustments related to
    Automatic Liquid Packaging, Inc. ("ALP") taxes (see Notes 1 and 2 of "Notes
    to Consolidated Financial Statements" incorporated by reference to Cardinal
    Health's 10-K for the fiscal year ended June 30, 2001). For the fiscal years
    ended June 30, 1999 and 1998, the pro forma adjustment for ALP taxes would
    have reduced net earnings before cumulative effect of change in accounting
    principle by $9.3 million and $4.6 million, respectively. The pro forma
    adjustment would have decreased diluted earnings per Cardinal Health common
    share before cumulative effect of change in accounting principle by $0.02 to
    $1.10 for fiscal year 1999 and by $0.01 to $1.06 for fiscal year 1998.

                                        8


(3) Net earnings per Cardinal Health common share before cumulative effect of
    change in accounting principle and cash dividends per Cardinal Health common
    share have been adjusted to retroactively reflect all stock dividends and
    stock splits through March 31, 2002.

(4) Cash dividends per Cardinal Health common share exclude dividends paid by
    all entities with which Cardinal Health has merged.

(5) In July 2001, the FASB issued SFAS No. 142 "Goodwill and Other Intangible
    Assets," which revises the accounting for purchased goodwill and other
    intangible assets. SFAS No. 142 is effective for fiscal years beginning
    after December 15, 2001, with earlier adoption permitted. Cardinal Health
    elected to adopt SFAS No. 142 beginning with the first quarter of fiscal
    year 2002. Under SFAS No. 142, purchased goodwill and intangible assets with
    indefinite lives are no longer amortized, but, instead, tested for
    impairment at least annually. Accordingly, Cardinal Health has ceased
    amortization of all goodwill and intangible assets with indefinite lives as
    of July 1, 2001. Intangible assets with finite lives, primarily patents and
    trademarks, will continue to be amortized over their useful lives.

   SFAS No. 142 requires a two-step impairment test for goodwill. The first step
   is to compare the carrying amount of the reporting unit's assets to the fair
   value of the reporting unit. If the carrying amount exceeds the fair value,
   then the second step is required to be completed, which involves the fair
   value of the reporting unit being allocated to each asset and liability with
   the excess being implied goodwill. The impairment loss is the amount by which
   the recorded goodwill exceeds the implied goodwill. Cardinal Health was
   required to complete a "transitional" impairment test for goodwill as of the
   beginning of the fiscal year in which SFAS No. 142 is adopted. This
   transitional impairment test required that Cardinal Health complete step one
   of the goodwill impairment test within six months from the date of initial
   adoption, or December 31, 2001. Cardinal Health completed the transitional
   impairment test and did not incur any impairment charges.

   The following table displays Cardinal Health's net earnings and per share
   amounts for fiscal years 1999, 2000 and 2001 as adjusted for amortization of
   intangible assets and goodwill.



                                                               FOR THE FISCAL YEAR ENDED
                                                                       JUNE 30,
                                                              ---------------------------
                                                               1999      2000      2001
                                                              -------   -------   -------
                                                               (IN MILLIONS, EXCEPT PER
                                                                    SHARE AMOUNTS)
                                                                         
Net earnings................................................  $533.3    $755.4    $902.0
Basic earnings per share....................................  $ 1.23    $ 1.72    $ 2.03
Diluted earnings per share..................................  $ 1.20    $ 1.68    $ 1.98


                                        9


                    COMPARATIVE PER COMMON SHARE INFORMATION


     We have set forth below information concerning earnings, cash dividends
declared and book value per share data for Cardinal Health on an historical and
a pro forma combined basis and for Syncor on an historical basis adjusted for
discontinued operations (see Note 1 below) and a pro forma combined basis
restated for discontinued operations, and on a per share equivalent pro forma
basis, in each case restated for discontinued operations for Syncor. Book value
per share for the pro forma combined presentation is based upon outstanding
Cardinal Health common shares, adjusted to include the estimated number of
Cardinal Health common shares to be issued in the merger for outstanding Syncor
shares at the time the merger is completed. The per share equivalent pro forma
combined data for Syncor shares is based on the conversion of each Syncor common
share into 0.52 of a Cardinal Health common share using the negotiated exchange
ratio. See "The Merger Agreement -- Conversion of Securities."



     You should read the information set forth below in conjunction with the
respective audited and unaudited financial statements of Cardinal Health and
Syncor incorporated by reference in this document. See "Where You Can Find More
Information" on page 83.





                                                              AT OR FOR THE        AT OR FOR THE
                                                           TWELVE MONTHS ENDED   NINE MONTHS ENDED
                                                                JUNE 30,             MARCH 31,
                                                                  2001                 2002
                                                           -------------------   -----------------
                                                                           
SYNCOR INTERNATIONAL -- HISTORICAL RESTATED FOR
  DISCONTINUED OPERATIONS
Net earnings per share of Syncor common stock from
  continuing operations(1):
  Basic..................................................         $1.30                $1.01
  Diluted................................................          1.17                 0.93
Cash dividends declared per share of Syncor common
  stock..................................................            --                   --
Book value per share.....................................          8.76                 9.92






                                                                AT OR FOR THE       AT OR FOR THE
                                                              FISCAL YEAR ENDED   NINE MONTHS ENDED
                                                                  JUNE 30,            MARCH 31,
                                                                    2001                2002
                                                              -----------------   -----------------
                                                                            
CARDINAL HEALTH -- HISTORICAL
Net earnings per Cardinal Health common share before
  cumulative effect of change in accounting principle(2)
  Basic.....................................................       $ 1.93              $ 1.85
  Diluted...................................................         1.88                1.81
Cash dividends declared per Cardinal Health common share....        0.085               0.075
Book value per share........................................        12.12               13.78
CARDINAL HEALTH AND SYNCOR -- PRO FORMA COMBINED
Net earnings per common share from continuing operations
  before cumulative effect of change in accounting
  principle(1)(2)(3)(4)
  Basic.....................................................       $ 1.95              $ 1.85
  Diluted...................................................         1.89                1.80
Cash dividends declared per common share(5).................        0.085               0.075
Book value per share(3)(4)..................................        12.25               13.93



                                        10





                                                                AT OR FOR THE       AT OR FOR THE
                                                              FISCAL YEAR ENDED   NINE MONTHS ENDED
                                                                  JUNE 30,            MARCH 31,
                                                                    2001                2002
                                                              -----------------   -----------------
                                                                            
EQUIVALENT PRO FORMA COMBINED PER SHARE OF SYNCOR COMMON
  STOCK
Net earnings per common share from continuing operations
  before cumulative effect of change in accounting
  principle(1)(2)(3)(4)
  Basic.....................................................       $ 1.01              $ 0.96
  Diluted...................................................         0.98                0.94
Cash dividends declared per common share(5).................        0.044               0.039
Book value per share(3)(4)..................................         6.37                7.24



---------------


(1) Syncor's historical net earnings per share of Syncor common stock from
    continuing operations at or for the twelve months ended June 30, 2001, and
    at or for the nine months ended March 31, 2002, exclude the discontinued
    operations related to Syncor's planned sale of CMI, closure or sale of
    certain international locations and disposal of Syncor's brachytherapy seeds
    production business announced by Syncor on June 14, 2002.


(2) Cardinal Health's historical net earnings per Cardinal Health common share
    before cumulative effect of change in accounting principle, Cardinal
    Health's and Syncor's Pro Forma Combined net earnings per common share from
    continuing operations before cumulative effect of change in accounting
    principle and the Equivalent Pro Forma Combined net earnings per common
    share from continuing operations before cumulative effect of change in
    accounting principle reflect the effect of merger-related costs and other
    special charges. Amounts include the effect of merger-related costs and
    other special charges recorded by Cardinal Health in the fiscal year ended
    June 30, 2001 and the nine-month period ended March 31, 2002. See Note 2 of
    "Notes to Consolidated Financial Statements" incorporated by reference to
    Cardinal Health's Form 10-K for fiscal year 2001 for a further discussion of
    merger-related costs and other special charges affecting fiscal year 2001.
    See Note 5 of "Notes to Condensed Consolidated Financial Statements"
    incorporated by reference to Cardinal Health's Form 10-Q for the nine months
    ended March 31, 2002 for further discussion of the merger-related costs and
    other special charges affecting the nine months ended March 31, 2002.


(3) The Pro Forma Combined and the Equivalent Pro Forma Combined information
    (excluding the book value per share information) presents the combination of
    Cardinal Health for the fiscal year ended June 30, 2001 with Syncor for the
    twelve months ended June 30, 2001. In addition, the financial information of
    Cardinal Health for the nine months ended March 31, 2002 is combined with
    that of Syncor for the nine months ended March 31, 2002. The book value per
    share information as of June 30, 2001 is calculated based on the Cardinal
    Health balance sheet as of June 30, 2001 and the Syncor balance sheet as of
    June 30, 2001. The book value per share information as of March 31, 2002 is
    calculated based on the Cardinal Health and Syncor balance sheets as of
    March 31, 2002.


(4) Amount does not reflect the pro forma effect of future merger-related
    expenses. In connection with the merger, Cardinal Health and Syncor expect
    to incur investment banking, legal, accounting and other merger-related
    costs and fees. Additionally, Cardinal Health and Syncor expect to incur
    other merger-related costs associated with the integration of the companies
    and institution of efficiencies anticipated as a result of the merger. The
    merger-related expenses will be charged to operating expense in the period
    in which the merger is completed, or in subsequent periods when incurred.
    Since the merger has not yet been completed and transition plans currently
    are being developed, the merger-related expenses cannot be reasonably
    estimated at this time.

(5) Pro Forma Combined cash dividends declared per Cardinal Health common share
    represent the historical dividends of Cardinal Health for all periods
    presented and exclude all dividends paid by Syncor and all entities with
    which Cardinal Health has merged. Cardinal Health's and Syncor's Pro Forma
    Combined cash dividends declared per common share have been adjusted to give
    retroactive effect to all stock dividends and stock splits through March 31,
    2002.

                                        11


                   COMPARATIVE MARKET PRICE AND DIVIDEND DATA


     On the table below, we present the range of the reported high and low
closing per share sale prices of Cardinal Health common shares as shown on the
New York Stock Exchange Composite Tape and Syncor shares as reported on The
Nasdaq National Market, as well as the per share dividends paid on those shares,
for the calendar quarters indicated. We have adjusted the share price
information in the table to reflect retroactively all applicable stock splits.





                                               CARDINAL HEALTH                   SYNCOR
                                                COMMON SHARE                  COMMON STOCK
                                         ---------------------------   ---------------------------
CALENDAR YEAR                             HIGH     LOW     DIVIDENDS    HIGH     LOW     DIVIDENDS
-------------                            ------   ------   ---------   ------   ------   ---------
                                                                       
1999
First Quarter..........................  $53.67   $44.00    $0.0167    $17.25   $12.25       --
Second Quarter.........................   47.92    37.92     0.0167     18.00    12.96       --
Third Quarter..........................   46.63    34.67     0.0167     20.00    14.50       --
Fourth Quarter.........................   37.58    25.00     0.0167     20.36    13.37       --
2000
First Quarter..........................  $39.58   $24.79    $0.0167    $16.50   $11.02       --
Second Quarter.........................   49.33    30.58     0.0200     36.00    13.00       --
Third Quarter..........................   63.38    45.27     0.0200     43.94    32.75       --
Fourth Quarter.........................   69.25    59.04     0.0200     39.06    23.75       --
2001
First Quarter..........................  $68.35   $58.67    $0.0200    $38.81   $27.25       --
Second Quarter.........................   77.00    61.78     0.0250     42.29    26.64       --
Third Quarter..........................   75.30    67.28     0.0250     38.74    26.63       --
Fourth Quarter.........................   76.60    61.50     0.0250     33.31    26.03       --
2002
First Quarter..........................  $70.89   $60.80    $0.0250    $29.15   $21.70       --
Second Quarter.........................   73.00    61.41     0.0250     34.12    27.72       --
Third Quarter (through August 30)......   68.19    49.08     0.0250     35.15    25.11       --




     The following table sets forth the closing price per Cardinal Health common
share as reported on the New York Stock Exchange Composite Tape and the closing
price per Syncor share as reported on The Nasdaq National Market on June 13,
2002, the last full trading day before we announced the proposed merger, and on
August 30, 2002, the last full trading day before the date of this document.
This table also shows the implied value of one Syncor share which we calculated
by multiplying the closing price per Cardinal Health common share on those dates
by 0.52, the exchange ratio.





                                                                                       IMPLIED VALUE OF
                                                                                         ONE SHARE OF
                                                     SYNCOR          CARDINAL HEALTH        SYNCOR
                                                  COMMON STOCK        COMMON SHARES      COMMON STOCK
                                                  ------------       ---------------   ----------------
                                                                              
June 13, 2002................................        $28.21               $62.35            $32.42
August 30, 2002..............................         33.34                64.84             33.72




     We encourage you to obtain current market quotations for Cardinal Health
common shares and Syncor shares.


     Cardinal Health will file an application to list Cardinal Health common
shares that Syncor stockholders will receive in the merger on the New York Stock
Exchange.

     On May 13, 2002, the Cardinal Health board of directors declared a dividend
on Cardinal Health common shares of $0.025 per share, payable on July 15, 2002,
to holders of record on July 1, 2002. Cardinal Health anticipates that it will
continue to pay quarterly cash dividends. The Cardinal Health board of
directors, however, has discretion to decide upon the timing and amount of any
future dividends, and whether or not Cardinal Health will pay dividends (and, if
so, how much the dividends will be) will depend on Cardinal Health's future
earnings, financial condition, capital requirements and other factors.

                                        12


                                  RISK FACTORS


     In considering whether to vote in favor of the merger agreement with
Cardinal Health, you should consider all of the information we have included in
this document and its annexes and all of the information included in the
documents incorporated by reference in this document. In addition, you should
pay particular attention to the following risk factors related to the merger.



THE MARKET VALUE OF CARDINAL HEALTH COMMON SHARES WILL VARY AND THOSE SHARES MAY
HAVE A LOWER PRICE AFTER THE COMPLETION OF MERGER THAN THEY CURRENTLY HAVE.



     The exchange ratio is a fixed ratio that will not be adjusted as a result
of any increase or decrease in the price of either Cardinal Health common shares
or Syncor common stock. The price of Cardinal Health common shares at the time
the merger is completed may be higher or lower than the price on the date of
this document or on the date of the special meeting. Changes in the business,
operations or prospects of Cardinal Health or Syncor, market assessments of the
likelihood that the proposed merger will be completed, regulatory
considerations, general market and economic conditions or other factors may
affect the prices of Cardinal Health common shares, Syncor shares or both. Most
of these factors are beyond our control. Since the proposed merger will be
completed only after all the conditions to the merger are satisfied or waived,
including the holding of the special meeting, there is no way to be sure that
the price of Cardinal Health common shares on any date prior to completion of
the merger will be indicative of the price at the time the merger is completed.
You should obtain current market quotations for both Cardinal Health common
shares and Syncor shares.



IF WE FAIL TO ACHIEVE THE BENEFITS ANTICIPATED IN THE MERGER, THE PRICE OF
CARDINAL HEALTH COMMON SHARES MAY DECLINE.



     We believe that we can achieve significant business opportunities and cost
savings as a result of the merger. We based our estimates of cost savings on
many assumptions, including future sales levels and other operating results, the
availability of funds for capital expenditures, the timing of certain events, as
well as general industry and business conditions and other matters. Many of
these factors are beyond the control of the combined company. Our estimates also
are based on a management consensus as to what levels of sales and similar
efficiencies should be achievable by an entity the size of the combined company.
Our estimates of potential cost savings and revenue enhancements are
forward-looking statements that are by their nature uncertain. The combined
company's actual cost savings and revenue improvements, if any, could differ
from those projected. Those differences could be material. Therefore, you should
not rely on our estimates as predictors of actual cost savings and revenue
improvements. We cannot assure you that unforeseen costs and expenses or other
factors will not offset the estimated cost savings and revenue improvements or
other components of the combined company's plan or result in delays in the
realization of certain projected cost savings. Certain Cardinal Health
shareholders may choose to sell their Cardinal Health shares in response. See
"Forward-Looking Statements."



IF WE FAIL TO INTEGRATE OUR BUSINESSES IN A TIMELY MANNER, WE MAY EXPERIENCE
ADVERSE SHORT-TERM OR LONG-TERM EFFECTS ON OUR OPERATING RESULTS.


     In deciding that the proposed merger is in the best interests of Syncor and
its stockholders, the Syncor board of directors considered the potential
complementary effects of combining Cardinal Health's and Syncor's assets,
personnel and operational expertise. Integrating businesses, however, involves a
number of special risks, including:

     - the possibility that management may be distracted from regular business
       concerns by the need to integrate operations,

     - unforeseen difficulties in integrating operations and systems,

     - customer and supplier reactions to proposed changes,


     - problems or difficulties in assimilating and retaining the employees of
       the acquired company, and


                                        13



     - challenges in retaining customers and suppliers.



     If we fail to manage these risks, we could experience potential adverse
short-term or long-term effects on our operating results.



     Additionally, Syncor announced, on June 14, 2002, that it is exiting the
imaging business and is entertaining offers for its Comprehensive Medical
Imaging division. This transaction may occur before or after the completion of
the merger. However, we cannot provide any assurances that any transaction will
occur or that the transaction will occur under terms acceptable to Syncor or
Cardinal Health.



IF CARDINAL HEALTH IS UNABLE TO SUCCESSFULLY IDENTIFY AND COMPLETE STRATEGIC
ACQUISITIONS, CARDINAL HEALTH'S GROWTH STRATEGY MAY BE IMPAIRED.



     An important element of Cardinal Health's growth strategy is to pursue
strategic acquisitions that either expand or complement its business, and
Cardinal Health routinely and on an ongoing basis reviews acquisition
opportunities. Acquisitions involve a number of special risks. In addition,
Cardinal Health may incur debt to finance future acquisitions, and Cardinal
Health may issue securities in connection with future acquisitions that may
dilute the holdings of current and future Cardinal Health shareholders.


                                        14



                           FORWARD-LOOKING STATEMENTS



This document and the information included or incorporated by reference contain
a number of forward-looking statements with respect to our financial condition,
results of operations, plans, objectives, future performance and business, as
well as certain information relating to the proposed merger, including, among
others:



     (1)  statements relating to the synergies and cost savings and
          accretion/dilution to reported earnings estimated to result from the
          proposed merger;



     (2)  statements relating to revenues estimated to result from the proposed
          merger;



     (3)  statements relating to integration costs estimated to be incurred in
          connection with the proposed merger; and



     (4)  statements preceded by, followed by or that include the terms
          "believes," "expects," "anticipates," "estimates" or similar words or
          expressions.



These forward-looking statements involve various risks and uncertainties. Actual
results may differ materially from those contemplated, projected or implied by
these forward-looking statements due to, among others, the following factors and
events:



     - costs or difficulties related to the integration of our businesses, or
       other acquired businesses, are greater than expected;



     - expected or anticipated synergies and cost savings from the proposed
       merger are not fully realized or are not realized within the expected
       time frame, or additional or unexpected costs are incurred;



     - dependence on key personnel to manage integration and our ongoing
       operation after the proposed merger;



     - the loss of customers or suppliers;



     - technological changes are more difficult and/or more expensive than
       anticipated;



     - revenues following the proposed merger are lower than expected;



     - increased competitive pressures in the industries or markets in which we
       operate;



     - changes in general economic conditions or in political or competitive
       forces;



     - changes in the securities markets;



     - changes in the regulatory environment;



     - difficulties and/or delays in selling certain operations of Syncor that
       are contemplated to be sold to third parties;



     - the risk that our analyses of these risks and forces could be incorrect
       and/or that the strategies developed to address them could be
       unsuccessful; and



     - the general risks that occur in our day-to-day businesses, including
       those discussed in our respective Annual Reports on Form 10-K, Quarterly
       Reports on Form 10-Q, and exhibits or amendments to those reports.



The order of the items listed above does not necessarily reflect the order of
their significance.


                                        15



     You should not place undue reliance on these statements, which speak only
as of the date of this document, or, in the case of documents incorporated by
reference, the dates of those documents.



     All subsequent written and oral forward-looking statements attributable to
Cardinal Health or Syncor or any person acting on their behalf are expressly
qualified by the cautionary statements contained or referred to in this section.
Neither Cardinal Health nor Syncor undertakes any obligation to release publicly
any revisions to these forward-looking statements to reflect events or
circumstances after the date of this document or to reflect the occurrence of
unanticipated events, except as may be required under applicable law.


                                        16


                              THE SPECIAL MEETING


     The Syncor board of directors is soliciting proxies from Syncor
stockholders for use at the special meeting and at any adjournments or
postponements of the special meeting. This document, together with the form of
proxy, is being mailed to Syncor stockholders on or about September [  ], 2002.


TIME AND PLACE OF THE MEETING

    The time and place of the special meeting is:


    [     ], October [  ], 2002

    1:00 p.m., California time
    Warner Center Hilton Hotel
    6360 Canoga Avenue
    Woodland Hills, California

MATTERS TO BE CONSIDERED AT THE SPECIAL MEETING

     The special meeting will be held to:


          (1) Vote on a proposal to approve the merger agreement. The merger
     agreement is included as Annex A to this document. The merger agreement
     provides for the merger of Mudhen Merger Corp. with and into Syncor. Syncor
     will be the surviving corporation in the merger and will become a wholly
     owned subsidiary of Cardinal Health.


          (2) Adjourn the special meeting, if necessary, to permit further
     solicitation of proxies in the event there are not sufficient votes at the
     time of the special meeting to approve the merger agreement proposal.

          (3) Act on any other matters that may properly come before the special
     meeting.

RECORD DATE


     The Syncor board of directors has established September [  ], 2002, as the
record date for the special meeting. Only holders of record of Syncor shares on
the record date are entitled to attend and vote at the special meeting or at any
adjournments or postponements of the special meeting.



     As of the close of business on the record date, there were approximately
[          ] Syncor shares outstanding and entitled to vote for purposes of the
general vote at the special meeting.


SHARE OWNERSHIP


     Syncor.  On the record date, all Syncor directors, executive officers and
their affiliates, as a group, beneficially owned a total of [     ] outstanding
Syncor shares, representing approximately [  ]% of the voting power at the
special meeting. Each of these Syncor directors and officers is expected to vote
the outstanding Syncor shares beneficially owned by him or her in favor of the
merger agreement. Monty Fu, Chairman of the Board of Syncor, and Robert G.
Funari, President and Chief Executive Officer of Syncor, who, together,
beneficially own approximately [  ]% of the outstanding shares on the record
date, have executed support/voting agreements with Cardinal Health agreeing to
vote in favor of the merger agreement.



     Cardinal Health.  At the record date, Cardinal Health and its subsidiaries
beneficially owned no Syncor shares. At the same date, all of Cardinal Health's
directors, executive officers and their affiliates as a group did not hold any
Syncor shares.


QUORUM


     A quorum for the general vote, consisting of the holders of a majority of
the voting power of the issued and outstanding Syncor shares at the record date,
must be present in person or represented by proxy for the transaction of
business at the special meeting. Syncor shares held by brokers or nominees as to
which instructions have not been received from the beneficial owners or persons
entitled to vote and for which the


                                        17



broker or nominee does not have discretionary power to vote on a particular
matter are referred to as "broker non-votes." These broker non-votes, if any,
and Syncor shares represented by proxies that reflect abstentions will be
treated as Syncor shares that are present and entitled to vote for purposes of
determining the presence of a quorum.


VOTE REQUIRED


     Approval of the merger agreement at the special meeting requires the
affirmative vote of holders representing a majority of the voting power of the
issued and outstanding Syncor shares. Each Syncor stockholder will have one vote
for each Syncor share held on the record date.



     Because approval of the merger agreement requires the affirmative vote of a
specified percentage of outstanding Syncor shares, abstaining, not voting on the
proposal, or failing to instruct your broker on how to vote Syncor shares held
for you by the broker, will have the same effect as voting against the merger
agreement.



     Approval of the adjournment proposal at the special meeting requires the
affirmative vote of holders representing a majority of the voting power of the
issued and outstanding Syncor shares present, in person or by proxy, at the
special meeting.



     You may vote your Syncor shares in one of the following ways:


          (1) by completing and returning the accompanying proxy card;

          (2) through the Internet or by telephone, as outlined on the
     accompanying proxy card; or

          (3) by appearing and voting in person at the special meeting.


VOTING AND REVOCATION OF PROXIES



     All Syncor shares represented at the special meeting by a properly executed
proxy will be voted in accordance with the instructions indicated on the proxy,
unless the proxy is revoked before a vote is taken. If you sign and return a
proxy without voting instructions, and do not revoke the proxy, the proxy will
be voted "FOR" the merger agreement proposal, "FOR" the adjournment proposal,
and in the discretion of the named proxies on any other matters that may
properly come before the special meeting.


     You may revoke your proxy at any time before it is voted. A proxy may be
revoked prior to the vote at the special meeting in any of the following ways:

          (1) by submitting a written revocation to the Secretary of Syncor at
     6464 Canoga Avenue, Woodland Hills, California 91367-2407 (which must be
     received by the Secretary of Syncor prior to the special meeting);

          (2) by submitting a later-dated proxy by mail or telephone or through
     the Internet (which must be received by the Secretary of Syncor prior to
     the special meeting); or

          (3) by voting in person at the special meeting.

     However, simply attending the special meeting (without voting) will not
revoke a proxy.


     If you do not hold your Syncor shares in your own name, you may revoke a
previously given proxy by following the revocation instructions provided by the
bank, broker or other person who is the registered owner of your Syncor shares.


                                        18


SOLICITATION OF PROXIES


     Syncor will pay the costs of soliciting proxies to vote on the merger
agreement at the special meeting, and each of us will pay our own expenses
incurred in connection with the cost of filing, printing and distributing this
document. We have retained MacKenzie Partners, Inc. to assist in the
solicitation of proxies for the special meeting. MacKenzie Partners will receive
a fee of up to $10,000, plus reasonable out-of-pocket expenses.



     In addition to solicitation by mail, directors, officers and employees of
Syncor and its subsidiaries may solicit proxies from Syncor stockholders, either
personally, through the Internet or by telephone or other form of communication.
None of the foregoing persons who solicit proxies will be separately compensated
for these services. Except as described above, Syncor does not anticipate that
any other persons will be specifically asked to solicit proxies or that special
compensation will be paid for that purpose. However, Syncor reserves the right
to do so if it concludes that these efforts are necessary or advisable.
Nominees, fiduciaries and other custodians will be requested to forward
soliciting materials to beneficial owners of Syncor common stock and will be
reimbursed for their reasonable expenses incurred in sending proxy material to
beneficial owners of Syncor common stock.


                                        19


                                   THE MERGER

BACKGROUND OF THE MERGER

     Beginning in spring 2001, Monty Fu, Chairman, and Robert G. Funari,
President and Chief Executive Officer, of Syncor, periodically reviewed with
Syncor's senior management and the Syncor board of directors the changing
landscape of the radiopharmaceutical distribution and medical imaging businesses
and the effect on Syncor's strategic outlook.

     As part of its strategy, Cardinal Health continually maintains a variety of
contacts with potential candidates for combination within the drug distribution
industry and other segments of the health services and health care industry
generally.

     In May 2001, Robert D. Walter, the Chairman and Chief Executive Officer of
Cardinal Health, contacted Mr. Funari to arrange a meeting in Cleveland, Ohio to
discuss developments in the radiopharmacy industry, and, in broad terms,
Cardinal Health's and Syncor's respective business plans. Following this
meeting, Cardinal Health and Syncor executed a mutual confidentiality agreement
in anticipation of further discussions to pursue the matters raised at the first
meeting. Various meetings and telephone conversations occurred between June and
August 2001 involving Cardinal Health's and Syncor's senior management during
which they discussed industry trends and the respective future strategies of
each company. At later meetings, Cardinal Health and Syncor began to generally
explore the possibility of Syncor and Cardinal Health pursuing a business
combination and the benefits that might be realized by combining their
operations.


     During this period, Mr. Funari was approached on an unsolicited basis by
another company in the health care industry. A number of meetings and telephone
conversations followed leading to preliminary exploration of the possibility of
a business combination involving Syncor and the other party. In connection with
these discussions, on August 8, 2001, Syncor entered into a confidentiality
agreement with the other party. Discussions continued throughout August and
early September 2001 regarding a potential transaction between Syncor and the
other party and potential benefits that could result from a business
combination. Although preliminary views on valuation were exchanged, in the
middle of September 2001, the other party informed Syncor that it was no longer
interested in continuing discussions with respect to a business combination.


     During August and September 2001, at the request of Syncor's senior
management and the Syncor board of directors, Syncor's financial advisor,
Salomon Smith Barney, contacted on behalf of Syncor several industry
participants on an informal basis to gauge their interest in a possible business
combination with Syncor. No indications of interest were received at that time
from the parties contacted.

     Beginning in July 2001, Syncor's senior management met regularly with the
Syncor board of directors, in person or telephonically, regarding the status of
the discussions with Cardinal Health and the other party and the possible
advantages and disadvantages of pursuing a transaction with either Cardinal
Health or the other party, as well as the advantages and disadvantages of
remaining an independent company. At a meeting of the Syncor board of directors
in Chicago on August 20-21, 2001, the Syncor board of directors created an
ad-hoc advisory committee of independent directors to assist Syncor's management
in its consideration of these potential combinations and requested that Syncor's
management regularly consult with the members of this ad-hoc committee of
independent directors. Regular telephonic meetings of the board of directors and
the ad-hoc committee of independent directors continued from August through
early November 2001.


     During late August through October 2001, Cardinal Health's and Syncor's
senior management and their respective legal and financial advisors continued
discussions regarding a potential business combination, and Cardinal Health
conducted detailed financial, operational and legal due diligence on Syncor.
Cardinal Health and Syncor began to discuss the possible terms of a business
combination and exchanged preliminary views regarding valuation of each of them
in the context of a transaction. Cardinal Health's and Syncor's discussions
focused on possible exchange ratios of Syncor common stock for Cardinal Health
common shares in a potential combination in the range of 0.57 to 0.62 subject
to, among other things, satisfactory completion of due diligence, negotiation of
definitive documents and related matters.


                                        20


     In late October 2001, Wachtell, Lipton, Rosen & Katz, outside counsel to
Cardinal Health, provided Syncor and Skadden, Arps, Slate, Meagher & Flom LLP,
Syncor's legal advisors, with a draft merger agreement relating to a possible
business combination. Syncor and its legal advisors provided comments on the
draft agreement in early November 2001.

     On November 4, 2001, Mr. Walter called Mr. Funari and informed him that, at
that time, Cardinal Health was not interested in pursuing a possible business
combination with Syncor on the terms discussed. Syncor then requested that
Cardinal Health return or destroy all Syncor confidential information provided
to Cardinal Health pursuant to their confidentiality agreement.


     After the termination of these discussions, Syncor's senior management and
the Syncor board of directors determined to explore the possible disposition of
Syncor's medical imaging business, CMI, as part of Syncor's decision to focus
its future operations on its core nuclear pharmaceutical and complex
pharmaceutical distribution businesses. Salomon Smith Barney was engaged to
assist Syncor in this process. Various interested parties were invited to
undertake a due diligence review of the medical imaging business. A number of
parties participated in this process that continued through, and was publicly
disclosed at the time of, the announcement of the transaction between Cardinal
Health and Syncor. This process is continuing as of the date of this document.


     In early April 2002, Mr. Walter contacted Messrs. Fu and Funari on an
unsolicited basis expressing interest in beginning new discussions relating to a
possible strategic business combination between Cardinal Health and Syncor.
During April 2002, senior management of Cardinal Health, Syncor and Syncor's
financial advisor held several meetings and telephone calls during which the
possible terms of a transaction were explored.

     During April, May and early June 2002, Syncor's senior management regularly
met telephonically with the ad-hoc committee of independent directors to update
them on the status of the discussions with Cardinal Health and the sale process
for CMI.


     During various meetings and telephone conversations in early May 2002,
Cardinal Health and Syncor exchanged views on preliminary valuation in
connection with a possible transaction that Cardinal Health and Syncor agreed
would be structured as a tax-free stock-for-stock merger whereby each share of
Syncor common stock would be exchanged for a defined fraction of a Cardinal
Health common share. Through the middle of May 2002, Cardinal Health and Syncor
held further discussions regarding the proposed exchange ratio for the
combination. Subject to, among other things, satisfactory completion of due
diligence, board of directors approval and satisfactory negotiation of other
terms of a transaction and definitive agreements, Cardinal Health and Syncor
decided to pursue negotiations on the basis of an approximate exchange ratio
that might be acceptable to both of them. At a May 16, 2002 meeting of the
ad-hoc committee of independent directors, the committee members were updated as
to the discussions at that time. In addition, during this and other meetings of
the ad-hoc committee of independent directors, the committee discussed with
Syncor's senior management and financial advisor the merits of the proposed
combination with Cardinal Health compared to other strategic alternatives
available to Syncor, including the risks and uncertainties associated with
Syncor remaining as an independent company.


     Beginning the week of May 20, 2002, extensive financial, operational and
legal due diligence on Syncor was conducted by Cardinal Health. This due
diligence continued until the execution of the definitive merger agreement on
June 14, 2002. In addition, on June 3-4, 2002, Syncor's senior management and
financial advisor conducted financial and operational due diligence on Cardinal
Health at meetings in Dublin, Ohio.


     Toward the end of May 2002, Wachtell, Lipton, on behalf of Cardinal Health,
circulated a draft merger agreement as well as draft support/voting agreement
relating to the proposed combination. Until the execution of the definitive
documentation on June 14, 2002, Cardinal Health and Syncor and their respective
legal advisors negotiated the terms of this draft merger agreement, as well as
the draft support/voting agreement and the identity of Syncor stockholders that
would sign the support/voting agreement. Wachtell, Lipton also provided a draft
stock option agreement pursuant to which Syncor would grant to Cardinal Health
an option to acquire up to 19.9% of Syncor's common stock. During the
negotiations on the definitive merger agreement,


                                        21


Cardinal Health agreed to withdraw its request for the stock option agreement.
The ad-hoc committee of independent directors of Syncor held several meetings to
discuss, and the Syncor board of directors was regularly updated as to, the
status of the negotiations on the definitive agreement and the principal
outstanding issues between Cardinal Health and Syncor, and provided Syncor's
senior management with their views on these matters. The negotiations between
Cardinal Health and Syncor focused on, among other things, the transaction
closing conditions and Syncor's ability to adequately consider a competing
proposal that might arise after the announcement of the transaction with
Cardinal Health. The board of directors and the committee of independent
directors of Syncor expressed their views that it was imperative, particularly
in light of the terms of the proposed combination with Cardinal Health, that the
definitive merger agreement not include terms that effectively preclude, from a
legal, procedural or financial perspective, the possibility of a viable superior
proposal being made for Syncor.


     On June 11, 2002, the Syncor board of directors held a special meeting in
Chicago. At this meeting, representatives of Skadden, Arps discussed in detail
fiduciary and other legal considerations that the directors should consider in
their deliberations regarding the proposed combination. In addition,
representatives of Skadden, Arps presented a detailed review of the terms of the
draft merger agreement, support/voting agreement and other documentation that
had been negotiated by Cardinal Health and Syncor, and identified the remaining
open items in connection with these negotiations. Salomon Smith Barney reviewed
with the Syncor board of directors financial aspects of the proposed
combination, including a financial overview of each of Syncor and Cardinal
Health, and Syncor's management's view as to strategic considerations in
connection with the proposed combination. The Syncor board of directors also
discussed with Syncor's senior management and Salomon Smith Barney strategic
alternatives to the proposed combination, including the potential risks of
Syncor remaining an independent company. In addition, the Syncor board of
directors discussed three different stand-alone scenarios for Syncor prepared by
Syncor's management and reviewed by Salomon Smith Barney showing varying levels
of projected financial performance of Syncor based on various assumptions as to
developments in Syncor's business over the next three years. Salomon Smith
Barney discussed the effect that these scenarios would have on its financial
analysis and indicated that the case that Syncor's management had advised
Salomon Smith Barney was the most likely scenario would be used for purposes of
its financial analysis of the fairness, from a financial point of view, of the
proposed exchange ratio. The Syncor board of directors also reviewed
management's estimate of the potential synergies that could be realized in the
proposed transaction. In addition, they discussed the risks and status of the
process for the sale of CMI. The board of directors also reviewed changes in
market conditions and Syncor's industry and businesses and prospects since the
Syncor board of directors last considered a possible combination with Cardinal
Health in late October 2001. At this meeting, Syncor's senior management
reported to the Syncor board of directors on the results of its due diligence
review of Cardinal Health.


     At the regular quarterly meeting of the Cardinal Health board of directors
held in May 2002, the Cardinal Health board of directors was apprised by
management and Cardinal Health's counsel as to the status of discussions between
Cardinal Health and Syncor to date and Cardinal Health's management presented
its rationale for a business combination involving Syncor. No action with
respect to any potential transaction was taken at the meeting. On June 13, 2002,
a special telephonic meeting of the Cardinal Health board of directors was held
at which the potential business combination with Syncor was considered and
approved.

     Commencing the night of June 13, 2002 and continuing in the early morning
of June 14, 2002, the Syncor board of directors met telephonically and received
an update from Syncor's senior management and financial and legal advisors as to
developments since the last Syncor board of directors meeting. Representatives
of Skadden, Arps reviewed the outcome of negotiations on the remaining issues in
the draft merger agreement, support/voting agreement and other definitive
documentation. Salomon Smith Barney reviewed its financial analysis of the
exchange ratio provided for in the merger agreement and rendered to the Syncor
board of directors its oral opinion, confirmed by delivery of a written opinion
dated June 14, 2002, to the effect that, as of the date of the opinion and based
on and subject to the matters described in its opinion, the exchange ratio was
fair, from a financial point of view, to holders of Syncor common stock. The
Syncor board of directors also discussed unsolicited calls to Syncor's
management from an investment banking firm suggesting that other

                                        22


parties in the industry might be interested in a transaction with Syncor. The
Syncor board of directors was advised by Syncor's management that the investment
banking firm reported that none of the four companies it had spoken with
expressed a definitive interest in pursuing a possible business combination with
Syncor at that time. After deliberations, the Syncor board of directors
unanimously determined that the merger agreement and the transactions
contemplated by the merger agreement, including the merger, are advisable and
fair to and in the best interests of Syncor and Syncor stockholders and would be
consistent with, and in furtherance of, the long-term business strategies and
goals of Syncor. The Syncor board of directors unanimously approved the merger
agreement and resolved to recommend to Syncor stockholders approval of the
merger agreement.

     On the morning of June 14, 2002, Cardinal Health and Syncor executed the
definitive merger agreement and issued a joint press release announcing the
proposed merger.

REASONS FOR THE MERGER; RECOMMENDATION OF THE SYNCOR BOARD OF DIRECTORS

     Considerations and Recommendation of the Syncor Board of Directors.  The
Syncor board of directors has unanimously approved the merger agreement and
determined that the merger agreement and the transactions contemplated by the
merger agreement, including the merger, are advisable and fair to and in the
best interests of Syncor and its stockholders and would be consistent with, and
in furtherance of, the long-term business strategies and goals of Syncor. The
decision of the Syncor board of directors to enter into the merger agreement and
to recommend that Syncor stockholders approve the merger agreement was the
result of careful consideration by the Syncor board of directors of numerous
factors, including, without limitation, the following:

     - the value to Syncor stockholders of the proposed merger with Cardinal
       Health, including the fairness to Syncor stockholders of the financial
       terms of the proposed merger with Cardinal Health; and

     - the terms of the merger agreement and other details of the proposed
       merger with Cardinal Health.

     The deliberations of the Syncor board of directors included consideration
of the following positive factors:

     - the exchange ratio (based on the closing price per Cardinal Health common
       share on June 13, 2002, the last trading day before announcement of the
       proposed merger) implied a value of $32.42 per share of Syncor common
       stock, representing a premium of approximately 14.9% over the closing
       price per share of Syncor common stock on June 13, 2002, the last trading
       day immediately preceding the announcement of the transaction, and a
       premium of approximately 5.0% over the average closing price per share of
       Syncor common stock for the four weeks prior to June 14, 2002;


     - the substantially larger public float and trading volume of Cardinal
       Health common shares (which are listed on the New York Stock Exchange)
       compared to the public float and trading volume of Syncor shares (which
       are quoted on The Nasdaq National Market) will provide Syncor
       stockholders the opportunity to gain greater liquidity in their
       investment;


     - because the exchange ratio is fixed, Syncor stockholders will benefit
       from any increase in the trading price of Cardinal Health common shares
       between the announcement of the merger and the closing of the merger;


     - assuming continuation of historical dividend practices following
       completion of the merger, Syncor stockholders, as Cardinal Health
       shareholders, will receive dividends on their Cardinal Health common
       shares as compared to Syncor shares on which dividends have never been
       paid;


     - the financial presentation of Syncor's financial advisor, Salomon Smith
       Barney, including its opinion as to the fairness, from a financial point
       of view and as of the date of the opinion, of the exchange ratio provided
       for in the merger, as more fully described under "-- Opinion of Syncor's
       Financial Advisor;"

                                        23


     - the strategic and operational risks associated with Syncor remaining
       independent, and the risks of not being able to achieve management's
       financial goals on a stand-alone basis, especially in light of recent
       volatility in financial markets and uncertainties in the U.S. and world
       economies, which risks include:

        - risks associated with CMI and the outcome of any attempted sale of
          CMI,

        - risks associated with Syncor's contract with Bristol-Myers Squibb Co.
          relating to the distribution of Cardiolite(R), which contract is due
          to expire on December 31, 2003, including the risk of non-renewal or
          renewal on less favorable economic terms,

        - risks associated with the restructuring of Syncor's international
          operations,

        - risks inherent in Syncor's growth strategies, including uncertainties
          as to Syncor's complex pharmaceutical initiatives, and

        - risks associated with increased competition in the radiopharmacy
          business;

     - the consideration of the three alternative stand-alone scenarios for
       Syncor prepared by Syncor's management and reviewed by Salomon Smith
       Barney showing varying levels of projected financial performance of
       Syncor based on various assumptions as to the developments in its
       business over the next three years, with the Syncor board of directors
       noting the significant adverse impact on Syncor's future financial
       performance in the event that the risks inherent in the least favorable
       case were realized;

     - the fact that Syncor had reviewed its strategic options and, in
       connection therewith, it or its representatives or others had preliminary
       contacts or informal discussions with a number of parties to gauge their
       potential interest in a strategic transaction with Syncor. In light of
       these contacts and discussions, the Syncor board of directors did not
       believe that it was likely that another party would make an offer to
       engage in a transaction with Syncor that would be more favorable to
       Syncor and its stockholders than the merger;


     - the opportunity for Syncor stockholders to participate, as Cardinal
       Health shareholders, in a significantly larger and more diversified
       company that is one of the leading providers of products and services
       supporting the health care industry with annualized revenues of more than
       $44 billion;


     - the financial strength of Cardinal Health and its subsidiaries should
       permit Syncor's businesses to obtain lower cost funding through the
       capital markets relative to Syncor on a stand-alone basis;

     - the merger will provide Syncor with access to significantly greater
       financial and operational resources than Syncor would have on a
       stand-alone basis, thereby enabling Syncor to fund its business
       development efforts at lower cost;

     - the post-merger combined businesses of Cardinal Health and Syncor would
       provide greater opportunity for the development and commercial
       exploitation of Syncor's service capabilities by utilizing Cardinal
       Health's broader geographic scope and client base;

     - the potential operational benefits afforded by the transaction,
       including:

        - expanded growth opportunities resulting from increased financial
          resources,

        - cross-selling opportunities utilizing Cardinal Health's expanded
          distribution channels and complementary product offerings, and

        - expected savings in areas such as general and administrative expenses;

     - the proven capability of each of Cardinal Health's and Syncor's
       management team to deliver stockholder value, integrate businesses and
       successfully execute strategies;

     - the merger agreement provisions permitting Syncor to provide confidential
       due diligence information to, and engage in discussions with, a third
       party that delivers an unsolicited competing offer to engage in a
       strategic transaction, provided that the Syncor board of directors
       believes in good faith as

                                        24


determined by a majority vote, based upon the advice of its outside legal
counsel, that failing to take this action would reasonably be expected to
constitute a breach of its fiduciary duties under applicable law and believes in
      good faith, after consulting with a nationally recognized investment
      banking firm and Syncor's outside legal counsel, that the proposal would
      reasonably be expected to result in a transaction that, if consummated,
      would be more favorable to Syncor stockholders from a financial point of
      view than the merger;

     - the right of the Syncor board of directors to withdraw, modify or change
       the Syncor board of directors' recommendation with respect to the merger
       if the Syncor board of directors believes in good faith, based upon the
       advice of outside legal counsel, that the failure to do so would
       reasonably be expected to cause a failure to comply with its fiduciary
       duties under applicable law with the consequences set forth in the merger
       agreement;

     - the ability to complete the merger within a reasonable period of time,
       including likelihood of receiving necessary regulatory approvals in light
       of the commitments made by Cardinal Health pursuant to the terms of the
       merger agreement in seeking these approvals;


     - the structure of the transaction and the terms of the merger agreement,
       including the fact that the merger is intended to qualify as a
       "reorganization" within the meaning of Section 368(a) of the Internal
       Revenue Code, which we refer to as the Code, and is, therefore, not
       expected to be taxable to Syncor stockholders, other than with respect to
       cash received in lieu of fractional Cardinal Health common shares;


     - the non-financial terms of the transaction, including the fact that
       Syncor is expected to retain its corporate identity and the anticipated
       role of Syncor's management in the combined radiopharmacy business of
       Cardinal Health following the merger; and

     - the existence of change in control agreements in favor of certain of
       Syncor's employees that provide payments to those employees in the event
       those employees' employment is terminated under certain circumstances
       following a change in control of Syncor.

     The Syncor board of directors also identified and considered the following
potentially negative factors in its deliberations:

     - because the exchange ratio is fixed, Syncor stockholders will be
       adversely affected by any decrease in the sale price of Cardinal Health
       common shares between the announcement of the transaction and the
       completion of the merger, which would not have been the case had the
       consideration been based on a fixed value (that is, a fixed dollar amount
       of value per share in all cases); and Syncor is not permitted to
       terminate the merger agreement solely because of changes in the market
       price of Cardinal Health common shares;

     - the fact that the implied value of the exchange ratio represented a
       premium over the closing price per share of Syncor common stock that was
       less than the premiums paid in some comparable public company
       transactions, including those in the health care industry;

     - the possible disruption to Syncor's business that may result from the
       announcement of the transaction and the resulting distraction of Syncor's
       management's attention.

     - the difficulty inherent in integrating diverse businesses and the risk
       that the cost efficiencies, synergies and other benefits expected to be
       obtained in the transaction might not be fully realized;

     - the terms of the merger agreement regarding the operation of Syncor's
       business during the period between the signing of the agreement and the
       completion of the merger;

     - the up to $24.125 million termination fee to be paid to Cardinal Health
       if the merger agreement is terminated under circumstances specified in
       the merger agreement (see "The Merger Agreement -- Effect of
       Termination");

                                        25


     - the fact that if a third party makes a more favorable competing offer for
       Syncor, Syncor will not be able to terminate the merger agreement prior
       to the time at which the Syncor stockholders vote on the merger agreement
       (see "The Merger Agreement -- Termination");

     - the risk that the merger might not be completed and the effect of the
       resulting public announcement of termination of the merger agreement on:

        - the market price of Syncor common stock,

        - Syncor's operating results, particularly in light of the costs
          incurred in connection with the transaction, including the potential
          requirement to make a termination payment, and

        - Syncor's ability to attract and retain key personnel; and

     - the possibility of significant costs and delays resulting from seeking
       regulatory approvals necessary for completion of the proposed merger and
       the possibility of nonconsummation of the proposed merger if these
       approvals are not obtained.

     In its consideration of the proposed merger, the Syncor board of directors
also reviewed information relating to Cardinal Health and Syncor and the
proposed merger, including:

     - historical information concerning Cardinal Health's and Syncor's
       respective businesses, financial performance and condition, operations,
       technology, management and competitive position;

     - Syncor's management's views as to the financial condition, results of
       operations and businesses and prospects of Cardinal Health and Syncor
       before and after giving effect to the merger;


     - then-current financial market conditions and historical market prices,
       volatility and trading information with respect to Cardinal Health common
       shares and Syncor shares; and


     - discussions with Syncor's senior management and financial advisors as to
       the result of their business and financial due diligence review of
       Cardinal Health.

     Although the foregoing discussion sets forth all of the material factors
considered by the Syncor board of directors in reaching the Syncor board of
directors' recommendation, it may not include all of the factors considered by
the Syncor board of directors, and each director may have considered different
factors. In view of the variety of factors and the amount of information
considered, the Syncor board of directors did not find it practicable to, and
did not, make specific assessments of, quantify or otherwise assign relative
weights to the specific factors considered in reaching its recommendation. The
recommendation was made after consideration of all of the factors as a whole.

     THE SYNCOR BOARD OF DIRECTORS HAS UNANIMOUSLY APPROVED THE MERGER AGREEMENT
AND DETERMINED THAT THE MERGER AGREEMENT AND THE TRANSACTIONS CONTEMPLATED BY
THE MERGER AGREEMENT, INCLUDING THE MERGER, ARE ADVISABLE AND FAIR TO AND IN THE
BEST INTERESTS OF SYNCOR AND SYNCOR STOCKHOLDERS AND WOULD BE CONSISTENT WITH,
AND IN FURTHERANCE OF, THE LONG-TERM BUSINESS STRATEGIES AND GOALS OF SYNCOR.
ACCORDINGLY, THE SYNCOR BOARD OF DIRECTORS UNANIMOUSLY RECOMMENDS THAT THE
SYNCOR STOCKHOLDERS VOTE "FOR" APPROVAL OF THE MERGER AGREEMENT.

     In considering the recommendation of the Syncor board of directors with
respect to the merger agreement, you should be aware that certain of Syncor's
directors and officers have arrangements that cause them to have interests in
the transaction that are different from, or are in addition to, the interests of
Syncor stockholders generally. See "The Merger -- Interests of Syncor's
Directors and Officers in the Merger."

     Considerations of the Cardinal Health Board of Directors.  In the course of
reaching its decision to approve the merger agreement and the transactions
contemplated by the merger agreement, including the merger, the Cardinal Health
board of directors consulted with Cardinal Health's legal advisors as well as
with

                                        26



Cardinal Health's management and received the advice of Cardinal Health's
financial advisors as provided to Cardinal Health's management, and considered a
number of positive factors, including among others:


     - management's expectation that the merger will be accretive to earnings
       and cash flow of the combined company, as compared to Cardinal Health's
       stand-alone earnings and cash flow expectations, without giving effect to
       any potential synergies;

     - the strategic and cultural fit between Cardinal Health and Syncor;

     - the opportunity to gain an attractive presence in the high-growth nuclear
       pharmacy business;

     - the potential for strategic synergies and cost savings across the various
       businesses of the combined company;

     - the opportunity to reduce marginal operating costs for the combined
       company below levels that either Cardinal Health or Syncor could achieve
       independently, enabling it to share these savings in the form of greater
       value and enhanced services to its customers, while maintaining an
       acceptable level of profitability;

     - the opportunity to build more effective pharmaceutical purchasing
       alliances with a larger customer base through Cardinal Health's
       e-procurement platform, making the combined company a more attractive
       trading partner to pharmaceutical manufacturers and enabling it to
       negotiate more favorable merchandising programs and price discounts on
       behalf of its customers;


     - the complementary nature of Cardinal Health's broader service offerings
       (such as pharmacy automation, pharmacy management, specialty packaging,
       health care information software and health care cost-management
       services) and Syncor's radiopharmaceutical product offerings, enabling
       the combined company to offer a broader choice to its customers and
       accelerating the number of meaningful opportunities to cross-sell
       products and services; and



     - the addition of Syncor's seasoned senior leadership team that should
       provide additional management depth to the combined company.



     The Cardinal Health board of directors believed that the positive factors
mentioned above outweighed the following negative factors:



     - the time and resources required to complete the merger, with the
       completion of the merger being subject to certain conditions (see "The
       Merger Agreement -- Conditions to the Obligations of Each
       Party; -- Conditions to the Obligations of Syncor; -- Conditions to the
       Obligations of Cardinal Health and Mudhen Merger Corp.") and the time and
       resources necessary to integrate Syncor's operations with Cardinal
       Health's operations;


     - the fact that all of the conditions to the merger may not be satisfied
       until the first calendar quarter of 2003;


     - potential difficulties inherent in integrating two geographically diverse
       businesses and the risk that the benefits expected to be obtained in the
       merger might not be fully realized; and



     - the cost associated with retaining Syncor's management team and
       possibility that Cardinal Health may be unable to retain these
       individuals.



     The Cardinal Health board of directors also considered Syncor's anticipated
divestiture of CMI and found this plan to be consistent with Cardinal Health's
strategic direction, although there can be no assurances that any such
transaction will occur. The foregoing discussion of the factors considered by
the Cardinal Health board of directors is not intended to be exhaustive. In view
of the wide variety of factors considered in connection with its evaluation of
the merger, the Cardinal Health board of directors did not find it practicable
to, and did not, quantify or otherwise attempt to assign relative weights to the
specific factors considered in reaching its determinations. In addition,
individual Cardinal Health directors may have given differing weights to
different factors. The Cardinal Health board of directors considered all these
factors as a whole, and overall considered them to be favorable to and to
support its determination to approve the merger agreement.

                                        27


OPINION OF SYNCOR'S FINANCIAL ADVISOR

     Syncor retained Salomon Smith Barney to act as its financial advisor in
connection with the proposed merger. In connection with this engagement, Syncor
requested that Salomon Smith Barney evaluate the fairness, from a financial
point of view, to the holders of Syncor common stock of the exchange ratio
provided for in the merger. On June 14, 2002, at a meeting of the Syncor board
of directors held to evaluate the proposed merger, Salomon Smith Barney
delivered to the Syncor board of directors an oral opinion, which opinion was
confirmed by delivery of a written opinion dated the same date, to the effect
that, as of that date and based on and subject to the matters described in its
opinion, the exchange ratio was fair, from a financial point of view, to the
holders of Syncor common stock.

     In arriving at its opinion, Salomon Smith Barney:

     - reviewed the merger agreement and related documents;

     - held discussions with Syncor's senior officers, directors and other
       representatives and advisors and with Cardinal Health's senior officers
       and other representatives and advisors concerning Syncor's and Cardinal
       Health's businesses, operations and prospects;

     - examined publicly available business and financial information relating
       to Syncor and Cardinal Health;

     - examined financial forecasts and other information and data for Syncor
       and publicly available financial forecasts and other information and data
       for Cardinal Health which were provided to or otherwise discussed with
       Salomon Smith Barney by Syncor's and Cardinal Health's managements,
       including information relating to the potential strategic implications
       and operational benefits anticipated by Syncor's management to result
       from the merger;

     - reviewed the financial terms of the merger as described in the merger
       agreement in relation to, among other things, current and historical
       market prices and trading volumes of Syncor common stock and Cardinal
       Health common shares, the historical and projected earnings and other
       operating data of Syncor and Cardinal Health, and the capitalization and
       financial condition of Syncor and Cardinal Health;

     - considered, to the extent publicly available, the financial terms of
       other transactions effected that it considered relevant in evaluating the
       merger;

     - analyzed financial, stock market and other publicly available information
       relating to the businesses of other companies whose operations it
       considered relevant in evaluating those of Syncor and Cardinal Health;

     - evaluated the potential pro forma financial impact of the merger on
       Cardinal Health; and

     - conducted other analyses and examinations and considered other financial,
       economic and market criteria as it deemed appropriate in arriving at its
       opinion.

     In rendering its opinion, Salomon Smith Barney assumed and relied, without
independent verification, on the accuracy and completeness of all financial and
other information and data publicly available or furnished to or otherwise
reviewed by or discussed with it. With respect to financial forecasts and other
information and data relating to Syncor provided to or otherwise discussed with
Salomon Smith Barney and used in its analysis, Syncor's management advised
Salomon Smith Barney that the forecasts and other information and data were
reasonably prepared on bases reflecting the best currently available estimates
and judgments of Syncor's management as to the future financial performance of
Syncor. With respect to the publicly available financial forecasts and other
information and data relating to Cardinal Health provided to or otherwise
discussed with Salomon Smith Barney and used in its analysis, Cardinal Health's
management advised Salomon Smith Barney that the forecasts and other information
and data represented reasonable estimates as to the future financial performance
of Cardinal Health.

     Salomon Smith Barney assumed, with Syncor's consent, that the merger will
be completed in accordance with its terms without waiver, modification or
amendment of any material term, condition or agreement and

                                        28


that, in the course of obtaining the necessary regulatory or third-party
approvals and consents for the merger, no delay, limitation, restriction or
condition will be imposed other than as specified in the merger agreement and
related documents. Salomon Smith Barney also assumed, with Syncor's consent,
that the merger will be treated as a tax-free reorganization for federal income
tax purposes. Salomon Smith Barney's opinion relates to the relative values of
Syncor and Cardinal Health. Salomon Smith Barney did not express any opinion as
to what the value of Cardinal Health common shares actually will be when issued
in the merger or the prices at which Cardinal Health common shares will trade or
otherwise be transferable at any time. Salomon Smith Barney did not make and was
not provided with an independent evaluation or appraisal of the assets or
liabilities, contingent or otherwise, of Syncor or Cardinal Health, and Salomon
Smith Barney did not make any physical inspection of the properties or assets of
Syncor or Cardinal Health.

     In connection with its engagement, and at Syncor's request, Salomon Smith
Barney held preliminary discussions with selected third parties regarding the
acquisition of Syncor. Salomon Smith Barney's opinion does not address the
relative merits of the merger as compared to any alternative business strategies
that might exist for Syncor or the effect of any other transaction in which
Syncor might engage. Salomon Smith Barney's opinion was necessarily based on
information available, and financial, stock market and other conditions and
circumstances existing and disclosed to Salomon Smith Barney, as of the date of
its opinion. Although Salomon Smith Barney evaluated the exchange ratio from a
financial point of view, Salomon Smith Barney was not asked to and did not
recommend the specific consideration payable in the merger, which was determined
through negotiations between Syncor and Cardinal Health. Syncor imposed no other
instructions or limitations on Salomon Smith Barney with respect to the
investigations made or procedures followed by Salomon Smith Barney in rendering
its opinion.


     The full text of Salomon Smith Barney's written opinion dated June 14,
2002, which describes the assumptions made, matters considered and limitations
on the review undertaken, is included as Annex B to this document and is
incorporated in this document by reference. Salomon Smith Barney's opinion is
directed to the Syncor board of directors and relates only to the fairness of
the exchange ratio from a financial point of view, does not address any other
aspect of the merger or any related transaction and does not constitute a
recommendation to any Syncor stockholder with respect to any matters relating to
the proposed merger.



     In preparing its opinion, Salomon Smith Barney performed a variety of
financial and comparative analyses, including those described below. The summary
of these analyses is not a complete description of the analyses underlying
Salomon Smith Barney's opinion, but rather describes the material financial
analyses underlying the opinion. The preparation of a fairness opinion is a
complex analytical process involving various determinations as to the most
appropriate and relevant methods of financial analysis and the application of
those methods to the particular circumstances, and, therefore, a fairness
opinion is not readily susceptible to summary description. Accordingly, Salomon
Smith Barney believes that its analyses must be considered as a whole and that
selecting portions of its analyses and factors or focusing on information
presented in tabular format, without considering all analyses and factors or the
narrative description of the analyses, could create a misleading or incomplete
view of the processes underlying its analyses and opinion.


     In its analyses, Salomon Smith Barney considered industry performance,
general business, economic, market and financial conditions and other matters
existing as of the date of its opinion, many of which are beyond the control of
Syncor and Cardinal Health. No company, business or transaction used in those
analyses as a comparison is identical to Syncor, Cardinal Health or the proposed
merger, and an evaluation of those analyses is not entirely mathematical.
Rather, the analyses involve complex considerations and judgments concerning
financial and operating characteristics and other factors that could affect the
acquisition, public trading or other values of the companies or business
segments analyzed.

     The estimates contained in Salomon Smith Barney's analyses and the
valuation ranges resulting from any particular analysis are not necessarily
indicative of actual values or predictive of future results or values, which may
be significantly more or less favorable than those suggested by its analyses. In
addition, analyses relating to the value of businesses or securities do not
necessarily purport to be appraisals or to reflect the prices at which
businesses or securities actually may be sold. Accordingly, Salomon Smith
Barney's analyses and estimates are inherently subject to substantial
uncertainty.

                                        29


     Salomon Smith Barney's opinion and analyses were only one of many factors
considered by the Syncor board of directors in its evaluation of the merger, and
should not be viewed as determinative of the views of the Syncor board of
directors or Syncor's management with respect to the exchange ratio or the
proposed merger.


     The following is a summary of the material financial analyses performed by
Salomon Smith Barney in connection with the rendering of its opinion dated June
14, 2002. The financial analyses summarized below include information presented
in tabular format. In order to fully understand Salomon Smith Barney's financial
analyses, the tables must be read together with the text of each summary. The
tables alone do not constitute a complete description of the financial analyses.
Considering the data in the tables below without considering the full narrative
description of the financial analyses, including the methodologies and
assumptions underlying the analyses, could create a misleading or incomplete
view of Salomon Smith Barney's financial analyses. Internal estimates of
Syncor's management used in the analyses described below exclude Syncor's wholly
owned subsidiary, CMI, which Syncor has publicly announced it intends to sell,
and assumes that the after-tax net proceeds of that sale will be used, together
with cash on hand, to repay Syncor's total debt outstanding as of March 31,
2002.


     Selected Companies Analysis.  Salomon Smith Barney compared financial,
operating and stock market data of Syncor to corresponding financial, operating
and stock market data of Cardinal Health and the following six publicly traded
companies in the broad-based distributors and medical/surgical distributors
sectors of the health care industry:



       BROAD-BASED DISTRIBUTORS              MEDICAL/SURGICAL DISTRIBUTORS
       ------------------------              -----------------------------
                                     
- AmeriSourceBergen Corporation         - Fisher Scientific International Inc.
- D&K Healthcare Resource, Inc.         - Henry Schein, Inc.
- McKesson Corporation                  - Owens & Minor, Inc.


     Salomon Smith Barney also compared financial, operating and stock market
data of the three publicly traded companies listed above in the broad-based
distributors sector to corresponding financial, operating and stock market data
of Cardinal Health. The selected companies that were reviewed distinctly for
Syncor are referred to as the Syncor selected companies and the selected
companies that were reviewed distinctly for Cardinal Health are referred to as
the Cardinal Health selected companies.

     Salomon Smith Barney reviewed firm values, calculated as equity value, plus
debt, minority interest and preferred stock, less cash and cash equivalents, as
a multiple of latest 12 months' and estimated calendar year 2002 revenue and as
a multiple of latest 12 months' and estimated calendar years 2002 and 2003
earnings before interest, taxes, depreciation and amortization, commonly known
as EBITDA. Salomon Smith Barney reviewed equity values as a multiple of Syncor's
latest 12 months' and estimated calendar years 2002 and 2003 net income.
Estimated financial data for Syncor were based on internal estimates of Syncor's
management and estimated financial data for Cardinal Health were based on
publicly available research analysts' estimates and discussions with Cardinal
Health's management. Estimated financial data for the selected companies were
based on publicly available research analysts' estimates. All multiples were
based on per share closing stock prices on June 12, 2002. Salomon Smith Barney
applied a range of selected multiples derived from the financial data described
above for the Syncor selected companies to corresponding financial data of
Syncor, and applied a range of selected multiples derived from the Cardinal
Health selected companies to corresponding financial data of Cardinal Health, in
order to derive implied equity reference ranges for Syncor and Cardinal Health.
This analysis indicated the following implied per share equity reference range
for Syncor, as compared to the per share equity value of Syncor implied by the
exchange ratio provided for in the merger based on the per share closing price
of Cardinal Health common shares on June 12, 2002:



        IMPLIED PER SHARE EQUITY                PER SHARE EQUITY VALUE FOR SYNCOR
       REFERENCE RANGE FOR SYNCOR                   IMPLIED BY EXCHANGE RATIO
       --------------------------               ---------------------------------
                                         
             $27.00 - $35.00                                 $32.24


     This analysis also indicated an implied per share equity reference range
for Cardinal Health of approximately $58.00 to $65.00, as compared to the per
share closing price of Cardinal Health common shares

                                        30


on June 12, 2002 of $62.00. The implied per share equity reference ranges for
Syncor and Cardinal Health were then used to calculate an implied exchange ratio
range of approximately 0.415x to 0.603x, as compared to the exchange ratio in
the merger of 0.52x.

     Discounted Share Price Analysis.  Salomon Smith Barney reviewed Syncor's
and Cardinal Health's calendar year estimated 2005 earnings per share, commonly
referred to as EPS, and derived implied hypothetical future share prices for
Syncor and Cardinal Health by applying to their calendar year estimated 2005 EPS
one-year forward EPS multiples ranging from 16.5x to 22.0x in the case of Syncor
and 20.0x to 23.5x in the case of Cardinal Health. Estimated financial data for
Syncor were based on internal estimates of Syncor's management and estimated
financial data for Cardinal Health were based on publicly available research
analysts' estimates and discussions with Cardinal Health's management. These
hypothetical future share prices then were discounted to present value using
discount rates based on Syncor's and Cardinal Health's cost of equity. This
analysis indicated the following implied per share equity reference range for
Syncor, as compared to the per share equity value of Syncor implied by the
exchange ratio provided for in the merger based on the per share closing price
of Cardinal Health common shares on June 12, 2002:



        IMPLIED PER SHARE EQUITY                PER SHARE EQUITY VALUE FOR SYNCOR
       REFERENCE RANGE FOR SYNCOR                   IMPLIED BY EXCHANGE RATIO
       --------------------------               ---------------------------------
                                         
             $31.25 - $43.50                                 $32.24


     This analysis also indicated an implied per share equity reference range
for Cardinal Health of approximately $73.25 to $88.50, as compared to the per
share closing price of Cardinal Health common shares on June 12, 2002 of $62.00.
The implied per share equity reference ranges for Syncor and Cardinal Health
were then used to calculate an implied exchange ratio range of approximately
0.353x to 0.594x, as compared to the exchange ratio in the merger of 0.52x.

     Precedent Transactions Analysis.  Salomon Smith Barney reviewed the
aggregate transaction values and implied transaction multiples in the following
eight selected merger and acquisition transactions in the health care industry
completed since July 1992:



            ACQUIROR                             TARGET
            --------                             ------
                               
- AmeriSource Health Corporation  - Bergen Brunswig Corporation
- Cardinal Health, Inc.           - Bindley Western Industries, Inc.
- AmeriSource Health Corporation  - C.D. Smith Healthcare, Inc.
- AmeriSource Health Corporation  - Walker Drug Company
- McKesson Corporation            - FoxMeyer Corporation
- Cardinal Health, Inc.           - Medicine Shoppe International, Inc.
- Cardinal Distribution, Inc.     - Whitmire Distribution Corp.
- Bergen Brunswig Corporation     - Durr-Fillauer Medical, Inc.


     Salomon Smith Barney compared firm values in the selected transactions as
multiples of latest 12 months' revenue and EBITDA. Salomon Smith Barney compared
equity values in the selected transactions as a multiple of latest 12 months'
and one-year forward net income. Estimated financial data for Syncor were based
on internal estimates of Syncor's management. All multiples for the selected
transactions were based on publicly available information at the time of
announcement of the relevant selected transaction. Salomon Smith Barney applied
a range of selected multiples derived from the financial data described above
for the selected transactions to corresponding financial data of Syncor in order
to derive the following implied per share equity reference range for Syncor, as
compared to the per share equity value of Syncor implied by the

                                        31


exchange ratio provided for in the merger based on the per share closing price
of Cardinal Health common shares on June 12, 2002:



        IMPLIED PER SHARE EQUITY                PER SHARE EQUITY VALUE FOR SYNCOR
       REFERENCE RANGE FOR SYNCOR                   IMPLIED BY EXCHANGE RATIO
       --------------------------               ---------------------------------
                                         
             $30.00 - $39.00                                 $32.24


     The implied per share equity reference range for Syncor was then used,
together with the implied per share equity reference range derived for Cardinal
Health from the selected companies analysis described above, to calculate an
implied exchange ratio range of approximately 0.462x to 0.672x, as compared to
the exchange ratio in the merger of 0.52x.

     Discounted Cash Flow Analysis.  Salomon Smith Barney calculated the
estimated present value of the stand-alone, unlevered, after-tax free cash flows
that Syncor could produce for the third and fourth calendar quarters of 2002 and
for calendar years 2003 to 2005. Salomon Smith Barney also calculated the
estimated present value of the stand-alone, unlevered, after-tax free cash flows
that Cardinal Health could produce for fiscal years 2003 to 2006. Estimated
financial data for Syncor were based on internal estimates of Syncor's
management and estimated financial data for Cardinal Health were based on
publicly available research analysts' estimates and discussions with Cardinal
Health's management. Salomon Smith Barney calculated a range of estimated
terminal values for Syncor and Cardinal Health by applying, in the case of
Syncor, a range of terminal EBITDA multiples of 7.4x to 10.4x to Syncor's
calendar year 2005 estimated EBITDA and, in the case of Cardinal Health, a range
of terminal EBITDA multiples of 11.5x to 12.5x to Cardinal Health's fiscal year
2006 estimated EBITDA. The estimated free cash flows and terminal values for
each of Syncor and Cardinal Health then were discounted to present value using
discount rates ranging from 8.0% to 11.0% in the case of Syncor and 8.5% to 9.5%
in the case of Cardinal Health. This analysis indicated the following implied
per share equity reference range for Syncor, as compared to the per share equity
value of Syncor implied by the exchange ratio provided for in the merger based
on the per share closing price of Cardinal Health common shares on June 12,
2002:



        IMPLIED PER SHARE EQUITY                PER SHARE EQUITY VALUE FOR SYNCOR
       REFERENCE RANGE FOR SYNCOR                   IMPLIED BY EXCHANGE RATIO
       --------------------------               ---------------------------------
                                         
             $32.00 - $45.25                                 $32.24


     This analysis also indicated an implied per share equity reference range
for Cardinal Health of between $82.75 to $92.00, as compared to the per share
closing price of Cardinal Health common shares on June 12, 2002 of $62.00. The
implied per share equity reference ranges for Syncor and Cardinal Health were
then used to calculate an implied exchange ratio range of approximately 0.348x
to 0.547x, as compared to the exchange ratio in the merger of 0.52x.

     Other Factors.  In the course of preparing its opinion, Salomon Smith
Barney also reviewed and considered other information and data, including:


     - trading characteristics and stock price performance of Syncor shares,
       Cardinal Health common shares and the common stock of selected companies
       in the health care industry, including the volume of Syncor shares traded
       at various stock prices and a comparison of price to earnings growth and
       forward year price to earnings multiples;



     - implied multiples for Syncor both on a stand-alone basis and in the
       merger based on various operational and financial metrics;



     - historical daily ratios of Syncor shares to Cardinal Health common shares
       over various periods prior to June 12, 2002;


     - the potential pro forma effect of the merger on Cardinal Health's
       earnings per common share, without taking into account potential cost
       savings or other synergies from the merger, for the latest 12 months and
       as estimated for fiscal years 2002 through 2004;

     - publicly available research analysts' reports for Cardinal Health common
       shares; and

                                        32


     - premiums paid one day and four weeks prior to public announcement of
       selected precedent transactions since 1994 and the market value of the
       target companies involved in those transactions as a percentage of the
       acquiror's market value.

MISCELLANEOUS

     Under the terms of its engagement, Syncor has agreed to pay Salomon Smith
Barney for its financial advisory services upon completion of the merger an
aggregate fee based on a percentage of the total consideration, including
liabilities assumed, payable in the merger, which fee is estimated to be
approximately $5.6 million. Syncor also has agreed to reimburse Salomon Smith
Barney for reasonable travel and other out-of-pocket expenses incurred by
Salomon Smith Barney in performing its services, including the reasonable fees
and expenses of its legal counsel, and to indemnify Salomon Smith Barney and
related persons against liabilities, including liabilities under the U.S.
federal securities laws, arising out of its engagement.

     Salomon Smith Barney and its affiliates in the past have provided, and
currently are providing, services to Syncor unrelated to the proposed merger,
for which services Salomon Smith Barney and its affiliates have received, and
expect to receive, compensation. Salomon Smith Barney and its affiliates also in
the past have provided, and may in the future provide, services to Cardinal
Health unrelated to the proposed merger, for which services Salomon Smith Barney
and its affiliates have received, and may receive, compensation. In the ordinary
course of business, Salomon Smith Barney and its affiliates may actively trade
or hold the securities of Syncor and Cardinal Health for their own account or
for the account of customers, and, accordingly, may at any time hold a long or
short position in those securities. In addition, Salomon Smith Barney and its
affiliates, including Citigroup Inc. and its affiliates, may maintain
relationships with Syncor, Cardinal Health and their affiliates.

     Salomon Smith Barney is an internationally recognized investment banking
firm, and was selected by Syncor based on its reputation, experience and
familiarity with Syncor and its business. Salomon Smith Barney regularly engages
in the valuation of businesses and their securities in connection with mergers
and acquisitions, negotiated underwritings, competitive bids, secondary
distributions of listed and unlisted securities, private placements and
valuations for estate, corporate and other purposes.

INTERESTS OF SYNCOR'S DIRECTORS AND OFFICERS IN THE MERGER


     Certain members of the Syncor board of directors and certain of Syncor's
executive officers may be deemed to have interests in the merger that are
different from, or are in addition to, the interests of Syncor stockholders
generally. The Syncor board of directors was aware of those interests and
considered them, among other matters, in approving the merger agreement.



     Severance Arrangements.  On August 24, 2001, Syncor entered into severance
agreements with each of the following executive officers: Monty Fu, Robert G.
Funari, Rodney E. Boone, Jack L. Coffey, Sheila H. Coop, William P. Forster and
Lewis W. Terry. If the executive's employment under these severance agreements
is terminated by Syncor without "cause" or by the executive for "good reason"
within 24 months following a "change in control," the executive will be entitled
to receive a cash payment equal to a stated multiplier times (1) the executive's
annual salary plus (2) the greater of the executive's average annual bonus for
the past three years and the executive's target bonus for the year in which
employment terminates. The relevant multiplier is three for Messrs. Fu and
Funari, 2.25 for Mr. Boone, and two for Ms. Coop and each of Messrs. Coffey,
Forster and Terry. In addition, Syncor will pay the executive a lump-sum payment
equal to the incremental pension benefit the executive would have earned if the
executive had remained employed for a period of years equal to the applicable
multiplier and, if applicable, the amount necessary to offset the effect of any
"golden parachute" excise tax. The completion of the merger will constitute a
"change in control" for purposes of the severance agreements. The severance
agreements also provide for continuation of medical and other benefits for a
period of years corresponding to each executive's multiplier.



     In addition, on August 24, 2001, Syncor entered into severance agreements
with John S. Baumann and Haig Bagerdjian on identical terms to those described
in the immediately preceding paragraph. The relevant multiplier is 2.25 for Mr.
Bagerdjian and two for Mr. Baumann. Pursuant to the Severance and Release


                                        33



Agreements by and between Syncor and Mr. Bagerdjian, dated January 31, 2002, and
Mr. Baumann, dated May 10, 2002, any termination of employment by either
executive following a "change in control" (including the merger) will be deemed
to be for "good reason," entitling the executive to his benefits under his
August 24, 2001 severance agreement.



     If the employment of Messrs. Fu, Funari, Boone, Coffey, Forster, Terry,
Bagerdjian, Baumann or Ms. Coop is terminated following the merger under
circumstances entitling the executive to benefits under the severance
agreements, the approximate amount of cash severance benefits that would be paid
under such agreements (based upon currently available information, but not
including any payments that may be made with respect to excise tax, and
excluding amounts up to $50,000 that may be paid to or on behalf of the
executive for outplacement services) is as follows:





                                                               APPROXIMATE CASH
                            NAME                              SEVERANCE BENEFITS
                            ----                              ------------------
                                                           
Mr. Fu......................................................      $2,020,000
Mr. Funari..................................................      $3,190,000
Mr. Boone...................................................      $1,450,000
Mr. Coffey..................................................        $680,000
Ms. Coop....................................................        $680,000
Mr. Forster.................................................      $1,100,000
Mr. Terry...................................................        $730,000
Mr. Bagerdjian..............................................        $972,000
Mr. Baumann.................................................        $611,000




     On April 1, 2002, Syncor entered into a severance and release agreement
with Mr. David L. Ward, Executive Vice President of Syncor and President and
Chief Executive Officer of CMI. Syncor entered into the severance and release
agreement with Mr. Ward in order to induce him to remain as President and Chief
Executive Officer of CMI until January 1, 2003, unless Syncor and Mr. Ward agree
to an alternate date. In addition, if CMI is sold to a third party prior to that
time, Mr. Ward's active employment will be terminated on the completion of the
sale. Under the severance and release agreement, Mr. Ward will continue to
receive his annual base salary of $285,000 until the end of his active
employment period, and for a period of 27 months thereafter. Following the
termination of his active employment, he will be entitled to receive a bonus
payment of $240,469, plus an additional bonus payment of $500,000 if the Syncor
board of directors determines that Mr. Ward has acted in the best interest of
Syncor throughout his active employment.



     Equity Based Awards.  Upon completion of the merger, each outstanding
option to acquire Syncor shares under Syncor's equity plans will be converted
into an option to acquire Cardinal Health common shares as provided in the
merger agreement. See "The Merger Agreement -- Conversion of Securities." Syncor
options held by Syncor's executive officers and directors under the various
equity plans sponsored by Syncor that were granted prior to the date of the
merger agreement will vest upon Syncor stockholder approval of the merger
agreement. An additional 31,205 Syncor options that were issued to non-employee
directors after the date of the merger agreement will also vest upon Syncor
stockholder approval of the merger agreement. The aggregate number of unvested
Syncor options to acquire Syncor shares held by Syncor's non-employee directors
is 72,470. The number of unvested Syncor options to acquire Syncor shares held
by each of Messrs. Fu, Funari, Boone, Coffey, Forster, Terry, Ward, Bagerdjian,
Baumann and Ms. Coop as of August 30, 2002, the weighted average exercise price
of such options and the estimated value of the


                                        34



accelerated vesting of such options calculated based upon the closing price per
Syncor share on August 30, 2002 are as follows:





                                      NUMBER OF UNVESTED
                                      SYNCOR OPTIONS TO    WEIGHTED AVERAGE     ESTIMATED SPREAD
                                      ACQUIRE SHARES OF    EXERCISE PRICE OF           OF
                                        SYNCOR COMMON       UNVESTED SYNCOR       ACCELERATED
                NAME                       STOCK(1)             OPTIONS            VESTING(2)
                ----                  ------------------   -----------------   ------------------
                                                                      
Mr. Fu..............................       134,486               31.04              308,823
Mr. Funari..........................       234,156               29.72              848,632
Mr. Boone...........................       140,292               31.57              247,958
Mr. Coffey..........................        50,746               30.31              154,633
Ms. Coop............................        49,138               30.21              153,914
Mr. Forster.........................       102,347               31.74              214,550
Mr. Terry...........................        81,007               30.19              256,183
Mr. Ward............................        73,310               28.30              369,516
Mr. Bagerdjian......................        57,936               33.31                1,593
Mr. Baumann.........................        40,576               26.98              257,991




     (1) Measures the number of unvested Syncor options as of August 30, 2002.



     (2) Amount calculated based upon the closing price per share of Syncor
     common stock on August 30, 2002. Estimated spread is equal to the number of
     unvested Syncor options multiplied by the sum of   less the weighted
     average exercise price.



In addition, on June 13, 2002, the compensation committee and the Syncor board
of directors approved an amendment to Syncor's Executive Long-Term Performance
Equity Plan to remove any limitations on acceleration of vesting of Syncor
options upon a change in control (including the merger) to the extent these
limitations on acceleration relate to "golden parachute" excise tax rules.



     Indemnification; Insurance.  Each of Syncor's non-employee directors and
executive officers is party to an indemnity agreement with Syncor, the form of
which was approved by Syncor stockholders on June 20, 1995. The indemnity
agreements provide the relevant director or executive officers with
indemnification for the duties performed for Syncor or its subsidiaries and
affiliates. In the merger agreement, Cardinal Health has agreed to cause Syncor,
as the surviving corporation, to honor these indemnity agreements following the
completion of the merger. In addition, Cardinal Health has agreed to cause
Syncor, as the surviving corporation, to indemnify all of Syncor's current and
former directors and officers for acts or omissions occurring at or prior to the
completion of the merger to the extent the indemnification is provided under
Syncor's certificate of incorporation and by-laws, in each case, as amended and
restated. For six years after completion of the merger, Cardinal Health has
agreed to provide directors' and officers' liability insurance covering acts or
omissions of Syncor's officers and directors occurring at or prior to the
closing of the merger, with substantially the same coverage, terms and
conditions as currently provided (subject to an aggregate cap on annual premiums
for the insurance equal to 200% of the amount disclosed to Cardinal Health).



     Other Arrangements.  In January 1999, Syncor entered into a split dollar
arrangement with Monty Fu and a trust for the benefit of Mr. Fu's children, by
which Mr. Fu relinquished all his then-current and future interests in Syncor's
Deferred Compensation Plan in exchange for Syncor's agreement to pay the
premiums on a life insurance policy insuring Mr. Fu and his wife and owned by
the trust. The split dollar arrangement provides that, upon a change in control
of Syncor (including the merger), the trust can elect: (1) to terminate the
split dollar arrangement, in which case the trust would not be obligated to
repay the $1,639,985 in premiums paid to date by Syncor, or (2) to accelerate
Syncor's payment obligations, in which case Syncor immediately would pay the
remaining $1,226,473 in premiums to the insurance company. In the absence of an
election by the trust, the split dollar arrangement will continue without
modification. If the trust elects the second option, in January 2015, the trust
still would be required to repay Syncor $2,866,458 representing the total amount
of premiums paid by Syncor.


                                        35



     In recognition of the extraordinary work and effort required in connection
with their service on the ad hoc committee of independent directors, on October
8, 2001, the Syncor board of directors authorized additional payments of $15,000
each to Dr. Steven B. Gerber and Messrs. George S. Oki and Arnold E. Spangler,
as members of the ad hoc committee of independent directors and $25,000 to Mr.
Bernard Puckett, chairman of the ad hoc committee of independent directors.



ACCOUNTING TREATMENT OF THE TRANSACTIONS


     The merger will be accounted for under the purchase method of accounting in
accordance with U.S. generally accepted accounting principles. Under this
method, the total consideration paid, including expenses, in the merger will be
allocated among Syncor's consolidated assets and liabilities based on their fair
values, and any excess of the purchase price over the estimated net fair value
would be recorded as goodwill by Cardinal Health. Syncor's operating results
will be consolidated with Cardinal Health's operating results beginning on the
date that the merger is effective.

APPRAISAL RIGHTS

     Under Delaware law, Syncor stockholders are not entitled to appraisal
rights in connection with the merger.

REGULATORY APPROVALS


     Under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended,
and the related rules, which we refer to together as the HSR Act, the merger may
not be completed, unless certain filings have been submitted to the Antitrust
Division of the U.S. Department of Justice, which we refer to as the Antitrust
Division, and the U.S. Federal Trade Commission, which we refer to as the FTC,
and the applicable waiting period has expired or been earlier terminated by the
Antitrust Division and the FTC. We have submitted the required filings to the
Antitrust Division and the FTC, and the applicable waiting period has expired.



     The Antitrust Division and the FTC frequently scrutinize the legality under
the antitrust laws of transactions such as the merger. At any time before or
after the completion of the merger, the Antitrust Division or the FTC could take
action under the antitrust laws as it deems necessary or desirable in the public
interest, including seeking to enjoin the completion of the merger or seeking
the divestiture of substantial assets of Syncor or Cardinal Health. Private
parties and state attorneys general also may bring legal action under U.S.
federal or state antitrust laws under some circumstances. Based upon an
examination of information available relating to the businesses in which Syncor
and Cardinal Health are engaged, we believe that the completion of the merger
will not violate the antitrust laws. There can be no assurance, however, that a
challenge to the merger on antitrust grounds will not be made, or, if a
challenge is made, what the result will be.



     Cardinal Health and Syncor have notified the applicable Brazilian
regulatory agency about the proposed merger. No waiting periods or approvals are
required prior to completion of the merger under Brazilian law.



     Cardinal Health has filed an application for approval of Cardinal Health
common shares to be issued in the merger for listing on the New York Stock
Exchange.


     In connection with the merger, Cardinal Health may be required to give
notifications to and/or receive consents from the U.S. Drug Enforcement
Administration, the U.S. Nuclear Regulatory Commission, state nuclear regulatory
agencies, state boards of pharmacy and other governmental agencies under
numerous licenses and permits held by Syncor and its subsidiaries. Although we
do not expect that obtaining any required consents from these agencies will
prevent us from completing the merger, we cannot be certain that we will obtain
all required regulatory clearances.


     Other than as described in this document, we believe that the merger does
not require the approval of any U.S. federal or state or foreign agency. We
will, however, be required to make certain filings with U.S. federal and state
governmental authorities to complete the merger.


                                        36


FEDERAL SECURITIES LAW CONSEQUENCES

     All Cardinal Health common shares issued in connection with the merger will
be freely transferable, except that any Cardinal Health common shares received
in the merger by persons that are deemed to be affiliates (as the term is
defined under the Securities Act of 1933, as amended, which we refer to as the
Securities Act) of Cardinal Health or Syncor prior to the merger may be sold by
them only in transactions permitted by the resale provisions of Rule 145 under
the Securities Act, or Rule 144 under the Securities Act with respect to persons
that are or become affiliates of Cardinal Health, or as otherwise permitted
under the Securities Act. Persons that may be deemed to be affiliates of
Cardinal Health or Syncor generally include individuals or entities that
control, are controlled by or are under common control with, Cardinal Health or
Syncor, as the case may be, and generally include the executive officers and
directors of the companies as well as their principal stockholders.

     Affiliates of Syncor may not sell their Cardinal Health common shares
acquired in connection with the merger, except pursuant to an effective
registration statement under the Securities Act covering the Cardinal Health
common shares or in compliance with Rule 145 under the Securities Act (or Rule
144, for affiliates of Syncor that become affiliates of Cardinal Health) or
another applicable exemption from the registration requirements of the
Securities Act. In general, Rule 145 provides that, for one year following
completion of the merger, an affiliate (together with certain related persons)
would be entitled to sell Cardinal Health common shares acquired in connection
with the merger only through unsolicited "broker transactions" or in
transactions directly with a "market maker" (as these terms are defined in Rule
144). Additionally, the number of Cardinal Health common shares to be sold by an
affiliate (together with certain related persons and certain persons acting in
concert) within any three-month period for purposes of Rule 145 may not exceed
the greater of 1% of outstanding Cardinal Health common shares or the average
weekly trading volume of Cardinal Health common shares during the four calendar
weeks preceding the sale. Rule 145 will remain available to affiliates if
Cardinal Health remains current with its informational filings with the SEC
under the Securities Exchange Act of 1934, as amended, which we refer to as the
Exchange Act. One year after the merger, an affiliate will be able to sell its
Cardinal Health common shares without being subject to the manner of sale or
volume limitations, provided that Cardinal Health is current with its
informational filings under the Exchange Act and the affiliate is not then an
affiliate of Cardinal Health. Two years after the effective time of the merger,
an affiliate will be able to sell its Cardinal Health common shares without any
restrictions so long as the affiliate had not been an affiliate of Cardinal
Health for at least three months prior to the date of the sale.

     Under the letters to be entered into with the affiliates of Syncor,
Cardinal Health will agree that, for so long as any affiliate agreeing to an
affiliate letter holds any Cardinal Health common shares as to which the
affiliate is subject to the limitations of Rule 145, Cardinal Health will use
its reasonable efforts to file all reports required to be filed by it pursuant
to the Exchange Act so as to satisfy the requirements of paragraph (c) of Rule
144 that there be available current public information with respect to Cardinal
Health, and to that extent to make available to the affiliate the exemption
afforded by Rule 145 with respect to the sale, transfer or other disposition of
Cardinal Health common shares.

                                        37


                              THE MERGER AGREEMENT


     The following is a summary of material provisions of the merger agreement,
a copy of which is included as Annex A to this document. This summary is
qualified in its entirety by reference to the merger agreement, which is
incorporated by reference in this document.


THE MERGER


     The merger agreement provides that, at the effective time of the merger and
subject to the requisite approval of Syncor stockholders and the satisfaction or
waiver of other conditions to the merger, Mudhen Merger Corp. will be merged
with and into Syncor, with the result that Syncor, as the surviving corporation,
will be a wholly owned subsidiary of Cardinal Health. See "-- Conditions to the
Obligations of Syncor;  -- Conditions to the Obligations of Cardinal Health and
Mudhen Merger Corp." The merger will become effective upon the filing of a duly
executed certificate of merger with the Delaware Secretary of State or at a
later time as agreed upon by Cardinal Health and Syncor and specified in the
certificate of merger. This filing will be made as promptly as possible
following the closing of the merger, which will occur as soon as practicable
(but in any event within three business days) following the date upon which all
conditions set forth in the merger agreement have been satisfied or waived, or a
time or date as agreed to by the parties to the merger agreement.


CHARTER, BY-LAWS, DIRECTORS, AND OFFICERS

     The surviving corporation's certificate of incorporation, as in effect
immediately prior to the effective time of the merger, will be amended as of the
effective time of the merger so as to contain only the provisions contained
immediately prior thereto in Mudhen Merger Corp.'s certificate of incorporation
(except for Article I of Mudhen Merger Corp.'s certificate of incorporation,
which will continue to read "The name of the corporation is 'SYNCOR
INTERNATIONAL CORPORATION') and Mudhen Merger Corp.'s by-laws in effect
immediately prior to the effective time of the merger will be the surviving
corporation's by-laws, in each case until amended in accordance with the DGCL.
From and after the effective time of the merger, Syncor officers will be the
officers of the surviving corporation and Mudhen Merger Corp.'s directors will
be the directors of the surviving corporation, in each case, until their
respective successors are duly elected and qualified. On or prior to the closing
date of the merger, Syncor will deliver to Cardinal Health evidence satisfactory
to Cardinal Health of the resignations of Syncor directors, the Syncor
resignations to be effective as of the effective time of the merger.

CONVERSION OF SECURITIES

     At the effective time of the merger, each share of Syncor common stock
issued and outstanding immediately prior to the effective time of the merger
will be converted into the right to receive 0.52, the exchange ratio, of a
Cardinal Health common share. Each share of Syncor capital stock held in the
treasury of Syncor will be cancelled and retired and no payment will be made in
respect of these shares of Syncor capital stock. No certificates for fractional
Cardinal Health common shares will be issued in the merger, and these fractional
share interests will not entitle the owner thereof to vote or have any rights of
a Cardinal Health shareholder. To the extent that an outstanding share of Syncor
common stock would otherwise have become a fractional Cardinal Health common
share, the holder will be entitled to receive a cash payment therefor in an
amount equal to the stockholder's proportionate interest in the net proceeds
from the sale in the open market of the aggregate fractional Cardinal Health
common shares, less commissions, stock transfer taxes and other out-of-pocket
transaction costs incurred in connection with the sale.


     Prior to the effective time of the merger, Cardinal Health and Syncor will
take all necessary actions to cause each unexpired and unexercised outstanding
option granted or issued under Syncor's stock option or equity-incentive plans
to be automatically converted at the effective time of the merger into a
fully-vested option to purchase that number of Cardinal Health common shares
equal to the number of Syncor shares subject to the Syncor option immediately
prior to the effective time of the merger multiplied by the exchange ratio (and
rounded to the nearest share), with an exercise price per share equal to the
exercise price per share


                                        38


of the Syncor option divided by the exchange ratio (and rounded to the nearest
whole cent), and with other terms and conditions that are the same as the terms
and conditions of the Syncor option immediately before the effective time of the
merger. Adjustments may be made, as necessary, to preserve the tax treatment of
incentive stock options. Syncor options granted by Syncor between June 14, 2002,
and the completion of the merger will not vest and will be converted into
unvested options to purchase Cardinal Health common shares as described above.
These Cardinal Health options will vest pursuant to the terms of the Syncor
options as in effect at the time of the merger.


     Each share of Mudhen Merger Corp. common stock issued and outstanding
immediately prior to the effective time of the merger will be converted into one
validly issued, fully paid and nonassessable share of common stock of the
surviving corporation, with those newly issued shares thereafter constituting
all of the issued and outstanding capital stock of Syncor as the surviving
corporation.


EXCHANGE PROCEDURES


     As soon as practicable after the effective time of the merger, a notice of
merger and a letter of transmittal will be mailed to each holder of record of a
Syncor stock certificate immediately prior to the effective time of the merger.
The transmittal letter will be accompanied by instructions specifying other
details of the exchange, and it must be used in forwarding Syncor stock
certificates for surrender in exchange for Cardinal Health share certificates to
which a Syncor stockholder prior to the effective time of the merger has become
entitled and, if applicable, cash in lieu of any fractional Cardinal Health
common share. After receipt of the transmittal letter, each holder of Syncor
stock certificates should surrender the Syncor stock certificates to EquiServe
Trust Company or another financial institution as may be designated by Cardinal
Health as the exchange agent for the merger, pursuant to and in accordance with
the instructions accompanying the letter of transmittal, and in exchange each
Syncor stockholder will receive a certificate evidencing the whole number of
Cardinal Health common shares to which that Syncor stockholder is entitled and a
check representing the amount of cash payable in lieu of any fractional Cardinal
Health common share and unpaid dividends and distributions, if any, which that
Syncor stockholder has the right to receive pursuant to the merger agreement,
after giving effect to any required withholding tax.



     After the effective time of the merger, each Syncor stock certificate,
until so surrendered and exchanged, will be deemed, for all purposes, to
represent only the right to receive, upon surrender, a certificate representing
Cardinal Health common shares and cash in lieu of fractional shares, if any, and
unpaid dividends and distributions, if any, as provided above. The holder of
those Syncor stock certificates will not be entitled to receive any dividends or
other distributions declared or made by Cardinal Health having a record date
after the effective time of the merger until the Syncor stock certificates are
surrendered. Subject to applicable law, upon surrender of Syncor stock
certificates, the dividends and distributions, if any, will be paid without
interest and less the amount of any withholding taxes that may be required
thereon.


     Syncor stock certificates surrendered for exchange by any person who is an
"affiliate" of Syncor for purposes of Rule 145(c) will not be exchanged until
Cardinal Health has received an executed "affiliate letter" from that person as
prescribed under the merger agreement.

REPRESENTATIONS AND WARRANTIES

     Pursuant to the merger agreement, Cardinal Health and Mudhen Merger Corp.
have made customary representations and warranties to Syncor with respect to,
among other matters, Cardinal Health's and Mudhen Merger Corp.'s organization
and standing, corporate power and authority, capitalization, conflicts, consents
and approvals, brokerage and finders' fees, information supplied and to be
supplied for inclusion in this registration statement or the proxy statement,
the absence of actions that would prevent the merger from receiving certain tax
treatment under the Code, compliance with applicable laws, litigation, the
absence of any material adverse changes and operations of Mudhen Merger Corp.,
and undisclosed liabilities. Syncor has made customary representations and
warranties to Cardinal Health and Mudhen Merger Corp. with respect to, among
other matters, its organization and standing, its subsidiaries, corporate power
and authority, capitalization, conflicts, consents and approvals, brokerage and
finders' fees, the absence of actions that would

                                        39



prevent the merger from receiving certain tax treatment under the Code, filings
with the SEC, information supplied and to be supplied for inclusion in this
document, compliance with applicable law, litigation, absence of any material
adverse changes, taxes, intellectual property, title to and condition of
properties, employee benefit plans, contracts, labor matters, undisclosed
liabilities, its operation of its business and its business relationships,
permits and compliance, environmental matters, insurance, the opinion of its
financial advisor, board recommendation and the required vote of stockholders,
actions under state takeover laws and amendment to Syncor's rights agreement.


HSR ACT FILINGS; REASONABLE EFFORTS; NOTIFICATION

     Each of Cardinal Health, Mudhen Merger Corp. and Syncor have agreed to:

     -  make or cause to be made the filings required of that party to the
        merger agreement or any of its subsidiaries or affiliates under the HSR
        Act with respect to the transactions contemplated by the merger
        agreement as promptly as practicable, and in any event, the initial
        filing with respect to the merger agreement will be made within ten
        business days after the date of the merger agreement;

     -  comply at the earliest practicable date with any request under the HSR
        Act for additional information, documents, or other materials received
        by that party to the merger agreement or any of its subsidiaries from
        the Antitrust Division or the FTC or any other governmental authority in
        respect of those filings or those transactions; and

     -  act in good faith and reasonably cooperate with the other party in
        connection with any filing (including, with respect to the party making
        a filing, providing copies of all documents to the non-filing party and
        its advisors reasonably prior to filing, and, if requested, to accept
        all reasonable additions, deletions or changes suggested in connection
        with the filing) and in connection with resolving any investigation or
        other inquiry of any agency or other governmental authority under any
        antitrust laws with respect to any filing or any transaction.


To the extent not prohibited by applicable law, each party to the merger
agreement has agreed to use all reasonable best efforts to furnish to the other
party all information required for any application or other filing to be made
pursuant to any applicable law in connection with the merger and the other
transactions contemplated by the merger agreement. Each party to the merger
agreement will give the other parties to the merger agreement reasonable prior
notice of any communication with, and any proposed understanding, undertaking,
or agreement with, any governmental authority regarding any filings or any
transaction. None of the parties to the merger agreement will independently
participate in any meeting, or engage in any substantive conversation, with any
governmental authority in respect of any filings, investigation, or other
inquiry without giving the other parties to the merger agreement prior notice of
the meeting or conversation and, unless prohibited by that governmental
authority, the opportunity to attend and/or participate. The parties to the
merger agreement will consult and cooperate with one another, in connection with
any analyses, appearances, presentations, memoranda, briefs, arguments, opinions
and proposals made or submitted by or on behalf of any party to the merger
agreement in connection with proceedings under or relating to the HSR Act or
other antitrust laws.



     Each of Cardinal Health and Syncor has agreed to use its reasonable best
efforts to resolve any objections as may be asserted by any governmental
authority with respect to the transactions contemplated by the merger agreement
under the HSR Act, the Sherman Act, as amended, the Clayton Act, as amended, the
Federal Trade Commission Act, as amended, and any other U.S. federal or state or
foreign statutes, rules, regulations, orders, decrees, administrative or
judicial doctrines or other laws that are designed to prohibit, restrict or
regulate actions having the purpose or effect of monopolization or restraint of
trade (collectively, antitrust laws). Each of Cardinal Health and Syncor have
agreed that, if any administrative or judicial action or proceeding is
instituted (or threatened to be instituted) challenging any transaction
contemplated by the merger agreement as inconsistent with or violative of
antitrust laws, it will (by negotiation, litigation or otherwise) cooperate and
use its reasonable best efforts vigorously to contest and resist any action or
proceeding, including any legislative, administrative or judicial action, and to
have vacated, lifted, reversed, or overturned any decree, judgment, injunction
or other order whether temporary, preliminary or permanent, that


                                        40


is in effect and that prohibits, prevents, delays or restricts completion of the
merger or any other transactions contemplated by the merger agreement, including
by vigorously pursuing all available avenues of administrative and judicial
appeal and all available legislative action, unless, by mutual agreement,
Cardinal Health and Syncor decide that litigation is not in their respective
best interests. Each of Cardinal Health and Syncor has agreed to use its
reasonable best efforts to take action as may be required to cause the
expiration of the notice periods under the HSR Act or other antitrust laws as
promptly as possible after the execution of the merger agreement.

     Each of the parties to the merger agreement has agreed to use reasonable
best efforts to take, or cause to be taken, all actions, and to do, or cause to
be done, and to assist and cooperate with the other parties to the merger
agreement in doing, all things necessary, proper or advisable to complete and
make effective, in the most expeditious manner practicable, the merger and the
other transactions contemplated by the merger agreement, including

     -  the obtaining of all other necessary actions or nonactions, waivers,
        consents, licenses, permits, authorizations, orders and approvals from
        governmental authorities and the making of all other necessary
        registrations and filings (including other filings with governmental
        authorities, if any),

     -  the obtaining of all consents, approvals or waivers from third parties
        related to or required in connection with the merger that are necessary
        to complete the merger and the transactions contemplated by the merger
        agreement or required to prevent a material adverse effect on Cardinal
        Health or Syncor from occurring prior to or after the effective time of
        the merger,

     -  the preparation of the proxy statement and the registration statement,

     -  the execution and delivery of any additional instruments reasonably
        necessary to complete the transactions contemplated by, and to fully
        carry out the purposes of, the merger agreement, and


     -  the providing of all information concerning that party, its
        subsidiaries, its affiliates and its subsidiaries' and affiliates'
        officers, directors, employees and partners as may be reasonably
        requested in connection with any of the matters set forth in this
        paragraph and the two preceding paragraphs.


     Cardinal Health and its subsidiaries have agreed, and, at the request of
Cardinal Health, Syncor and its subsidiaries will agree, to hold separate
(including by trust or otherwise) or to divest, dispose of, discontinue or
assign, all of which we refer to, collectively, as divestiture limitations, any
of their respective businesses, subsidiaries or assets, or to take or agree to
take any action with respect to (including, without limitation, to license or
sub-license or to renegotiate, in each case, on commercially reasonable terms
any arrangement or agreement regarding), or agree to any limitation on, any of
their respective businesses, subsidiaries or assets (or any interest in the
foregoing), which we refer to collectively as, limitations; provided that any
limitation is conditioned upon the completion of the merger and the failure of
the limitation, when taken together with any other limitations, to have, in the
aggregate, a "regulatory material adverse effect" (as defined below) on Cardinal
Health or a regulatory material adverse effect on Syncor. Syncor agrees and
acknowledges that, notwithstanding anything to the contrary in this paragraph,
neither Syncor nor any of its subsidiaries will, without Cardinal Health's prior
written consent, agree to any limitations or make or agree to make any cash
payments to any suppliers or customers of Cardinal Health or Syncor (or their
respective subsidiaries) in connection with its obligations under this
paragraph. Notwithstanding anything to the contrary in the merger agreement,
Cardinal Health and its subsidiaries are not required to agree to any
limitations (including making cash payments to suppliers or customers) with
respect to Cardinal Health and any of its subsidiaries and/or Syncor and any of
its subsidiaries that would reasonably be expected, in the aggregate, to have a
regulatory material adverse effect on Cardinal Health or a regulatory material
adverse effect on Syncor. For purposes of the merger agreement, the parties have
agreed that a "regulatory material adverse effect" will be deemed to have
occurred if there are limitations that deprive Cardinal Health of the ownership
or operation of, or the economic benefits (including the making of cash
payments) of owning or operating, assets, subsidiaries or businesses of Cardinal
Health and any of its subsidiaries and/or Syncor and any of its subsidiaries
that generated, in the aggregate, 2001 calendar year revenues equal to 8.25% or
more of the total 2001 calendar year revenues of Syncor and its subsidiaries.
Cardinal Health and Syncor further agreed that Cardinal Health

                                        41


will not be required to agree to (1) divestiture limitations that would deprive
Cardinal Health of the ownership or operation of, or the economic benefits of
the owning or operating, assets or businesses that generated, in the aggregate,
2001 calendar year revenues equal to or greater than $58 million, or (2) any
non-divestiture limitations the economic impact of which, in the aggregate,
would exceed $8 million.

TAX TREATMENT

     Pursuant to the merger agreement, Syncor and Cardinal Health are required
to use all reasonable best efforts to cause the merger to constitute a
"reorganization" (within the meaning of Section 368 of the Code) and to
cooperate with each other and provide documentation, information and materials
that are reasonably necessary, proper and advisable, including in obtaining an
opinion from Skadden, Arps, Slate, Meagher & Flom LLP, counsel to Syncor to whom
Cardinal Health and Syncor will deliver representation letters to be relied upon
in rendering its opinion. See "-- Conditions to the Obligations of Each Party."

PUBLIC ANNOUNCEMENTS


     Unless otherwise required by applicable law, the New York Stock Exchange or
The Nasdaq National Market (and, in that event, only if time does not permit),
Cardinal Health and Syncor will consult with each other before issuing any press
release with respect to the merger. Neither Cardinal Health nor Syncor will
issue any press release related to the merger prior to consulting with the other
party.


CONVEYANCE TAXES

     Cardinal Health, Mudhen Merger Corp. and Syncor have agreed to cooperate in
the preparation, execution and filing of all returns, questionnaires,
applications or other documents regarding taxes or fees that become payable in
connection with the transactions contemplated by the merger agreement and that
are required or permitted to be filed on or before the effective time of the
merger. All conveyance taxes are to be paid by the party bearing legal
responsibility for payment.

PREPARATION OF REGISTRATION STATEMENT

     Cardinal Health and Syncor have agreed to use all reasonable efforts to
prepare the proxy statement for filing with the SEC at the earliest practicable
time. The special meeting will be called for the earliest practicable date as
determined by Syncor in consultation with Cardinal Health. Cardinal Health will
prepare and file the registration statement with the SEC as soon as is
reasonably practicable following clearance of the proxy statement by the SEC,
and will use reasonable best efforts to have the registration statement declared
effective by the SEC as promptly as practicable and to maintain the
effectiveness of the registration statement through the effective time of the
merger. Syncor and Cardinal Health will use reasonable best efforts to clear the
proxy statement with the Staff of the SEC and to take other reasonable actions
under applicable state security laws. No filing of, or amendment or supplement
to, the registration statement or the proxy statement will be made by Cardinal
Health or Syncor without providing the other party with a reasonable opportunity
to review and comment thereon. Cardinal Health will advise Syncor, promptly
after it receives notice of the time when the registration statement becomes
effective or any supplement or amendment has been filed, the issuance of any
stop order, the suspension of the qualification of the Cardinal Health common
shares issuable in connection with the merger for offering or sale in any
jurisdiction, or any request by the SEC for amendment of the proxy statement or
the registration statement or comments on the proxy statement or the
registration statement and responses thereto or requests by the SEC for
additional information.

     Syncor has agreed to promptly furnish Cardinal Health with all information
concerning it as may be required for inclusion in the proxy statement and the
registration statement, and to cooperate with Cardinal Health's preparation of
the proxy statement and the registration statement in a timely fashion, and to
use reasonable best efforts to assist Cardinal Health in having the registration
statement declared effective by the SEC as promptly as practicable consistent
with the timing for the special meeting as determined in consultation with
Cardinal Health. If, at any time prior to the effective time of the merger,
either party to the merger agreement obtains knowledge of any information
pertaining to that party that would require any

                                        42


amendment or supplement to the registration statement or the proxy statement,
the party to the merger agreement will so advise the other party and promptly
furnish the other party with all information as required for the amendment or
supplement, and will promptly amend or supplement the registration statement
and/or proxy statement. Syncor will use reasonable best efforts to cooperate
with Cardinal Health in the preparation and filing of the proxy statement, and,
consistent with the timing for the special meeting, use all reasonable efforts
to mail the proxy statement at the earliest practicable date to Syncor
stockholders, which will include all information required under applicable law
to be furnished to Syncor stockholders in connection with the merger and the
transactions contemplated by the merger agreement and will include the Syncor
board of directors' recommendation to the extent not previously withdrawn.

CONDUCT OF CARDINAL HEALTH'S OPERATIONS

     The merger agreement obligates Cardinal Health to conduct its operations in
the ordinary course until the effective time of the merger, except as expressly
contemplated by the merger agreement or as required by applicable law, and
obligates Cardinal Health and its subsidiaries to use their respective
reasonable best efforts to preserve their respective business organizations;
provided that Cardinal Health and its subsidiaries may take any action or omit
to take any action, to the extent permitted by the merger agreement, whether or
not the action or omission would be considered taken in the ordinary course.
Cardinal Health has agreed that it will not, and it will not permit its
subsidiaries to:

     - amend or propose to amend Cardinal Health's articles of incorporation, as
       amended and restated, to provide for the issuance of additional classes
       of Cardinal Health capital stock having superior rights to Cardinal
       Health common shares;

     - make any acquisition of securities, assets or businesses primarily
       involved in the industries in which Syncor operates or that supply the
       radiopharmacy businesses in which Syncor operates (whether by merger,
       consolidation, purchase or otherwise) that would reasonably be expected
       to cause a meaningful delay or impediment to the completion of the
       transactions contemplated by the merger agreement or might reasonably be
       expected to have a material adverse effect on Cardinal Health; or

     - agree, in writing or otherwise, to propose or take any of the foregoing
       actions.

INDEMNIFICATION; DIRECTORS' AND OFFICERS' INSURANCE

     Pursuant to the merger agreement, Cardinal Health has agreed that, from and
after the effective time of the merger, Cardinal Health will cause the surviving
corporation to indemnify and hold harmless the present and former Syncor
officers and directors in respect of acts or omissions occurring at or prior to
the effective time of the merger to the extent provided under Syncor's
certificate of incorporation or the by-laws or the indemnification agreements
between Syncor and Syncor's directors. In the merger agreement, Cardinal Health
also has agreed that it will or will cause the surviving corporation to obtain
and maintain in effect, for a period of six years after the effective time of
the merger, policies of directors' and officers' liability insurance up to a
certain agreed maximum insurance premium at no cost to the beneficiaries of the
insurance policies with respect to acts or omissions occurring at or prior to
the effective time of the merger, with substantially the same terms and
conditions as existing policies. Cardinal Health has also agreed to advance any
costs or expenses as incurred by present and former Syncor's officers and
directors to the fullest extent permitted by applicable law. In addition, from
and after the effective time of the merger, Syncor officers or officers of its
subsidiaries who become Cardinal Health officers or officers of its subsidiaries
will be entitled to the same indemnity rights and protections as those afforded
to similarly situated Cardinal Health officers or officers of its subsidiaries.
Under this section of the merger agreement, Cardinal Health has agreed to
provide certain third-party beneficiary rights to the present and former Syncor
officers and directors.

MUDHEN MERGER CORP.

     Prior to the effective time of the merger, Mudhen Merger Corp. has agreed
not to conduct any business or make any investments other than as specifically
contemplated by the merger agreement and not to have any

                                        43


assets (other than a de minimis amount of cash paid to Mudhen Merger Corp. for
the issuance of Mudhen Merger Corp. common stock to Cardinal Health) or any
material liabilities.

NEW YORK STOCK EXCHANGE LISTING


     Cardinal Health has agreed to use its reasonable best efforts to cause
Cardinal Health common shares issuable pursuant to the merger or upon the
exercise of options to purchase Cardinal Health common shares that were
exchanged for options to purchase Syncor shares pursuant to the merger agreement
to be approved for listing on the New York Stock Exchange, subject to official
notice of issuance, prior to the effective time of the merger.


EMPLOYEES AND EMPLOYEE BENEFITS

     With respect to employee benefit matters, the merger agreement provides
that Cardinal Health will use its reasonable best efforts to make Syncor
employees eligible to participate in Cardinal Health's employee benefit plans
not later than July 1, 2003. From the effective time of the merger until July 1,
2003, Cardinal Health will provide Syncor employees who remain employees of
Cardinal Health or Syncor with employee benefits (other than plans providing for
equity or equity-based compensation) that are not, in the aggregate, materially
less favorable than those provided to the Syncor employees prior to the merger.
Syncor employees who remain employees of Cardinal Health or Syncor will be
entitled to participate in Cardinal Health's equity and equity-based incentive
plans in accordance with their terms. Cardinal Health will give the Syncor
employees credit for service with Syncor under Cardinal Health's benefit plans
as described in the merger agreement. These provisions of the merger agreement
do not apply to Syncor employees covered by collective bargaining agreements.
Syncor agreed to take all actions necessary to terminate all open offering
periods under the Syncor International Corporation Employee Stock Purchase Plan,
which we refer to as the Syncor ESPP, as of a date no later than the end of its
last regularly occurring payroll period prior to the contemplated effective time
and to terminate the Syncor ESPP as of a date no later than immediately prior to
the effective time of the merger.

THE SPECIAL MEETING

     Syncor has agreed, subject to applicable law, to take all actions necessary
to convene and hold the special meeting, on the earliest practicable date
determined in consultation with Cardinal Health, to consider and vote upon
approval of the merger agreement. Syncor has agreed to take all lawful actions
to solicit the approval of the merger agreement by Syncor stockholders, has
agreed to recommend, through the Syncor board of directors, approval of the
merger agreement, and, except as permitted by the merger agreement, not to
withdraw, amend or modify the Syncor board of directors' recommendation in a
manner adverse to Cardinal Health. The merger agreement allows the Syncor board
of directors not to recommend that Syncor stockholders approve or withdraw or
modify the Syncor board of directors' recommendation adversely to Cardinal
Health if the Syncor board of directors believes in good faith, based upon the
advice of outside legal counsel, that the failure to withhold, withdraw or
modify its recommendation would reasonably be expected to cause a failure to
comply with its fiduciary duties under applicable law. Notwithstanding any
change in the Syncor board of directors' recommendation, Cardinal Health will
have the option, exercisable within 20 days of notice of the change, to
terminate the merger agreement pursuant to the provision described in clause (4)
under "-- Termination." See "-- Termination." Syncor is required to ensure that
the special meeting is called, noticed, convened, held and conducted, and that
all proxies solicited in connection with the special meeting are solicited, in
compliance in all material respects with all applicable law. Syncor has agreed
that its obligation to call, give notice of, convene and hold the special
meeting, as required by this paragraph, will not be affected by the withholding,
withdrawal or modification of the Syncor board of directors' recommendation nor
by the commencement, public proposal, public disclosure, or communication to
Syncor of any "superior proposal" as set forth under "-- No Solicitation."

                                        44


CONDUCT OF SYNCOR'S OPERATIONS

     The merger agreement obligates Syncor to conduct its operations in the
ordinary course and to use reasonable best efforts to maintain and preserve its
business organization and its material rights and franchises and to retain the
services of its officers and key employees and maintain relationships with
customers, suppliers, lessees, licensees and other third parties, and to
maintain all of its operating assets in their current condition (normal wear and
tear excepted), to the end that their goodwill and ongoing business will not be
impaired in any material respect. During the period from the date of the merger
agreement to the effective time of the merger or date of termination of the
merger agreement, Syncor has agreed that it will not, unless expressly
contemplated by the merger agreement, including Syncor's disclosure schedule, or
unless contrary to applicable laws, without the prior written consent of
Cardinal Health:

     - do or effect any of the following actions with respect to its securities:

       - adjust, split, combine or reclassify Syncor capital stock,

       - make, declare or pay any dividend or distribution on, or, directly or
         indirectly, redeem, purchase or otherwise acquire, any shares of Syncor
         capital stock or any securities or obligations convertible into or
         exchangeable for any shares of Syncor capital stock (other than (1)
         dividends or distributions from its direct or indirect wholly owned
         subsidiaries in the ordinary course of business or (2) dividends or
         distributions from a subsidiary that is partially owned by Syncor or
         any of its subsidiaries in the ordinary course of business; provided
         that Syncor or any of its subsidiaries receives or is to receive its
         proportionate share thereof),


       - grant any person any right or option to acquire any shares of Syncor
         capital stock, except, after the date of the merger agreement, for the
         grant of Syncor options to purchase up to 100,000 Syncor shares;
         provided that the Syncor options are granted either (1) to new hires in
         the ordinary course of business consistent with past practice after
         consultation with Cardinal Health to (but, in any event, not under the
         Syncor ESPP) or (2) pursuant to formula awards as set forth in Syncor's
         disclosure schedule; provided that, in each case, the Syncor options
         will not vest in connection with the transactions contemplated by the
         merger agreement,


       - issue, deliver or sell or agree to issue, deliver or sell any
         additional shares of Syncor capital stock or any securities or
         obligations convertible into or exchangeable or exercisable for any
         shares of Syncor capital stock or those securities (except pursuant to
         the exercise of outstanding options),

       - enter into any agreement, understanding or arrangement with respect to
         the sale, voting, registration or repurchase of Syncor capital stock,
         or

       - open any offering period or issue any shares of Syncor capital stock or
         grant any purchase rights pursuant to the Syncor ESPP;

     - directly or indirectly sell, transfer, lease, pledge, mortgage, encumber
       or otherwise dispose of any of the property or assets of it or its
       subsidiaries other than in the ordinary course of business or those that
       are, individually or in the aggregate, immaterial;

     - make or propose any changes in Syncor's certificate of incorporation or
       by-laws;

     - amend or modify, or propose to amend or modify, the Syncor rights
       agreement, as amended as of the date of the merger agreement;

     - merge or consolidate with any other person;

     - acquire assets or capital stock of any other person in excess of
       $1,000,000 individually or $3,000,000 in the aggregate, other than the
       acquisition of inventory in the ordinary course of business, consistent
       with past practice;

     - incur or otherwise become liable for any indebtedness for the obligations
       of any other entity, except in the ordinary course of business,
       consistent with past practice;

                                        45


     - create any subsidiaries;


     - enter into or modify in any material respect any employment, severance,
       termination or similar agreements or arrangements with, or grant any
       bonuses, salary increases, severance or termination pay to, any officer,
       director, consultant or employee, other than in the ordinary course of
       business consistent with past practice with respect to Syncor's
       non-officer employees, or otherwise increase the compensation or benefits
       provided to any of Syncor's officers, directors, consultants or
       employees, except in the ordinary course of business consistent with past
       practice or as may be required by applicable law, or grant, reprice, or
       accelerate the exercise or payment of any Syncor options or other
       equity-based awards;


     - enter into, adopt or amend in any material respect any employee benefit
       plan or arrangement, except as required by applicable law;

     - take any action that could give rise to severance benefits payable to any
       Syncor officer or director as a result of consummation of the
       transactions contemplated by the merger agreement;

     - change any material method or principle of tax or financial accounting in
       a manner that is inconsistent with past practice, except to the extent
       required by applicable law or GAAP, as advised by Syncor's regular
       independent accountants;

     - settle any actions, whether now pending or made or brought after the date
       of the merger agreement involving an amount in excess of $1,500,000
       individually or $3,000,000 in the aggregate, except in the ordinary
       course of business consistent with past practice;

     - modify, amend or terminate, or waive, release or assign any material
       rights or claims with respect to, certain specified contracts or any
       other material contract to which Syncor is a party or any confidentiality
       agreement to which Syncor is a party, except in the ordinary course of
       business consistent with past practice;

     - enter into any confidentiality agreements or arrangements, other than in
       the ordinary course of business consistent with past practice;

     - write up, write down or write off the book value of any assets,
       individually or in the aggregate, in excess of $300,000, except for
       depreciation and amortization in accordance with GAAP consistently
       applied and except, following consultation with Cardinal Health, as
       required by applicable law or GAAP;

     - incur or commit to any capital expenditures in excess of $1,000,000
       individually or $3,000,000 in the aggregate;

     - make any payments in respect of policies of directors' and officers'
       liability insurance (premiums or otherwise) other than premiums paid in
       respect of its current policies or a renewal thereof to the extent
       previously disclosed to Cardinal Health;

     - take any action to exempt or make not subject to

      - the provisions of Section 203 of the DGCL, or

      - any other state takeover law or state law that purports to limit or
        restrict business combinations or the ability to acquire or vote shares,

       any individual or entity (other than Cardinal Health or its subsidiaries)
       or any action taken thereby, which individual, entity or action would
       have otherwise been subject to the restrictive provisions thereof and not
       exempt therefrom;

     - knowingly and intentionally take any action that could likely result in a
       violation or breach of any agreement, covenant, representation or
       warranty contained in the merger agreement that would result in a failure
       to satisfy the conditions to the closing of the transaction;

     - except as would not be reasonably likely to have a material adverse
       effect on Syncor, make, revoke or amend any tax election, settle or
       compromise any claim or assessment with respect to taxes, execute or
                                        46


       consent to any waivers extending the statutory period of limitations with
       respect to the collection or assessment of any taxes or amend any
       material tax returns;

     - permit or cause any of its subsidiaries to do any of the foregoing or
       agree or commit to do any of the foregoing; or

     - agree in writing or otherwise to take any of the foregoing actions,
       except as expressly permitted in the merger agreement.

Additionally, pursuant to the merger agreement, Syncor has agreed to consult
with Cardinal Health prior to making publicly available its financial results or
filing certain documents with the SEC after the date of the merger agreement.

NO SOLICITATION


     During the term of the merger agreement, Syncor has agreed that it will
not, and will not authorize and will use best efforts not to permit any of its
subsidiaries or any of its or its subsidiaries' directors, officers, employees,
agents or representatives, directly or indirectly, to solicit, initiate,
encourage or facilitate, or furnish or disclose nonpublic information in
furtherance of, any inquiries or the making of any proposal with respect to any
recapitalization, merger, consolidation or other business combination involving
Syncor, or acquisition of any capital stock (other than upon exercise of Syncor
options that are outstanding as of the date of the merger agreement) or a
material amount of the assets (other than transactions with customers in the
ordinary course of business consistent with past practice or the disposition of
all or part of the business or operations of CMI), of Syncor and its
subsidiaries, taken as a whole, in a single transaction or a series of related
transactions, or any combination of the foregoing, which we refer to as a
competing transaction, or negotiate, explore or otherwise engage in discussions
with any person (other than Cardinal Health, Mudhen Merger Corp. or their
respective directors, officers, employees, agents and representatives) with
respect to any competing transaction or enter into any agreement, arrangement or
understanding requiring it to abandon, terminate or fail to complete the merger
or any other transactions contemplated by the merger agreement; provided that,
at any time prior to the approval of the merger agreement by Syncor
stockholders, Syncor may furnish information to, and negotiate or otherwise
engage in discussions with, any person that delivers a written proposal for a
competing transaction that was not solicited or encouraged after the date of the
merger agreement if and so long as the Syncor board of directors believes in
good faith by a majority vote, based upon the advice of its outside legal
counsel, that failing to take the action would reasonably be expected to
constitute a breach of its fiduciary duties under applicable law and believes in
good faith, after consulting with a nationally recognized investment banking
firm and Syncor's outside legal counsel, that the proposal would reasonably be
expected to result in a transaction that, if consummated, would be more
favorable to Syncor stockholders from a financial point of view than the
transactions contemplated by the merger agreement (including any adjustment to
the terms and conditions proposed by Cardinal Health in response to the
competing transaction), which the merger agreement refers to as a superior
proposal; provided, further, that, prior to furnishing any information to that
person, Syncor will enter into a confidentiality agreement that is no less
restrictive, in any material respect, than the confidentiality agreement between
Cardinal Health and Syncor, dated July 9, 2001, as amended on August 29, 2001
and September 5, 2001.


     Syncor has agreed that it will immediately cease all existing activities,
discussions and negotiations with any persons conducted to the date of the
merger agreement with respect to any proposal for a competing transaction and
request the return of all confidential information regarding Syncor provided to
any of these persons prior to the date of the merger agreement pursuant to the
terms of any confidentiality agreements or otherwise.

     In the event that, after the date of the merger agreement and prior to it
being approved by the Syncor stockholders, the Syncor board of directors
receives a superior proposal that was not solicited or encouraged and believes
in good faith based upon the advice of Syncor's outside legal counsel that
failure to take the action would reasonably be expected to constitute a breach
of the fiduciary duties of the Syncor board of directors under applicable law,
the Syncor board of directors may withdraw, modify or change, in a manner
adverse to Cardinal Health, the Syncor board of directors' recommendation and/or
comply with Rule 14e-2

                                        47


under the Exchange Act with respect to a competing transaction, provided that
Syncor gives Cardinal Health three business days' prior written notice of its
intention to do so (provided that the foregoing will in no way limit or
otherwise affect Cardinal Health's right to terminate the merger agreement in
accordance with the provisions described under "-- Termination"). Any
withdrawal, modification or change of the Syncor board of directors'
recommendation will not change the approval of the Syncor board of directors for
purposes of causing any state takeover statute or other state law to be
inapplicable to the transactions contemplated by the merger agreement, including
the merger or the support/voting agreements, or change the obligation of Syncor
to present the merger agreement for approval at the duly called special meeting
on the earliest practicable date determined in consultation with Cardinal
Health.

     From and after the execution of the merger agreement, Syncor will promptly
advise Cardinal Health in writing of the receipt, directly or indirectly, of any
inquiries or proposals or the participation by or on behalf of Syncor in any
discussions or negotiations, relating to a competing transaction (including, in
each case, the specific terms and status of the competing transaction and the
identity of the other person or persons involved) and promptly furnish to
Cardinal Health a copy of any written proposal in addition to any information
provided to or by any third party relating to the written proposal. All
information provided to Cardinal Health under this section of the merger
agreement will be kept confidential by Cardinal Health in accordance with the
terms of the confidentiality agreement between Cardinal Health and Syncor.

     In addition, Syncor has agreed to promptly advise Cardinal Health, in
writing, if the Syncor board of directors makes any determination as to any
unsolicited competing transaction as permitted under the terms of the merger
agreement, as described above. Furthermore, nothing contained in this section of
the merger agreement prohibits Syncor from making disclosure (and the disclosure
in and of itself will not be deemed to be a change in the Syncor board of
directors' recommendation) of the fact that a competing transaction has been
proposed, the identity of the person making the proposal or the material terms
of the proposal in the registration statement or the proxy statement only to the
extent the disclosure of the facts, identity or terms is required under
applicable law and only following prior consultation by Syncor with Cardinal
Health regarding the proposed disclosure.

AFFILIATES OF SYNCOR

     Syncor has agreed to use reasonable best efforts to cause each person that
will be, at the effective time of the merger or was on the date of the merger
agreement, an "affiliate" of Syncor for purposes of Rule 145 to execute and
deliver to Cardinal Health, no less than ten days prior to the date of the
special meeting, a written letter containing the undertakings in the form
attached as an exhibit to the merger agreement. No later than 15 days prior to
that date, Syncor, after consultation with Syncor's outside legal counsel, will
provide Cardinal Health with a letter (reasonably satisfactory to outside legal
counsel to Cardinal Health) specifying all of the individuals or entities that
Syncor believes may be deemed to be affiliates of Syncor. Cardinal Health will
be entitled to place legends on the certificates evidencing any Cardinal Health
common shares to be received by (1) any affiliate of Syncor or (2) any person
Cardinal Health in consultation with Cardinal Health's outside legal counsel
reasonably identifies as being a person that is an affiliate pursuant to the
terms of the merger agreement, and to issue appropriate stop transfer
instructions to the transfer agent for Cardinal Health common shares consistent
with the terms of the letters from the Syncor affiliate, regardless of whether
that person has executed an affiliate letter and regardless of whether that
person's name appears on the letter to be delivered pursuant to this section of
the merger agreement.

CONDITIONS TO THE OBLIGATIONS OF EACH PARTY

     Pursuant to the merger agreement, the respective obligations of Syncor,
Cardinal Health and Mudhen Merger Corp. are subject to the satisfaction of each
of the following conditions:

     - Syncor stockholders will have approved the merger agreement in the manner
       required by applicable law;

     - any applicable waiting periods under the HSR Act relating to the merger
       and the transactions contemplated by the merger agreement will have
       expired or been terminated, and any other approvals

                                        48


       of any governmental authority will have been obtained, except for those
       approvals (unrelated to antitrust laws) the failure of which to obtain
       would not, individually or in the aggregate, result in the imposition of
       any fine or penalty, except in immaterial amounts;

     - no provision of any applicable law and no judgment, injunction, order or
       decree of a governmental authority will prohibit or enjoin the completion
       of the merger or the transactions contemplated by the merger agreement or
       limit the ownership or operation by Cardinal Health, Syncor or any of
       their respective subsidiaries of any material portion of the businesses
       or assets of Cardinal Health or Syncor;

     - there will not be pending any action by any governmental authority

      - challenging or seeking to restrain or prohibit the completion of the
        merger or any of the other transactions contemplated by the merger
        agreement,

      - seeking to prohibit or limit in any material respect the ownership or
        operation by Cardinal Health, Syncor or any of their respective
        subsidiaries of, or to compel Cardinal Health, Syncor or any of their
        respective subsidiaries to dispose of or hold separate, any material
        portion of the business or assets of Cardinal Health, Syncor or any of
        their respective subsidiaries, as a result of the merger or any of the
        other transactions contemplated by the merger agreement, except in the
        case of prohibitions, limitations, dispositions or holdings that would
        not be deemed to constitute a material adverse effect under the
        provisions described under "-- HSR Act Filings; Reasonable Efforts;
        Notification," or

      - seeking to impose limitations on the ability of Cardinal Health to
        acquire or hold, or exercise full rights of ownership of, any shares of
        capital stock of the surviving corporation, including the right to vote
        capital stock of the surviving corporation on all matters properly
        presented to stockholders of the surviving corporation;

     - the SEC will have declared the registration statement effective, and no
       stop order or similar restraining order suspending the effectiveness of
       the registration statement will be in effect and no proceedings for this
       purpose will be pending before or threatened by the SEC or any state
       securities administrator;

     - Cardinal Health common shares to be issued in the merger and upon
       exercise of Cardinal Health exchange options will have been approved for
       listing on the New York Stock Exchange, subject to official notice of
       issuance; and

     - Syncor will have received the opinion of its counsel, Skadden, Arps,
       Slate, Meagher & Flom LLP, dated as of the closing date of the merger, to
       the effect that

      - the merger will constitute a "reorganization" (within the meaning of
        Section 368(a) of the Code), and


      - no gain or loss will be recognized by Syncor stockholders upon the
        receipt of Cardinal Health common shares in exchange for Syncor shares
        pursuant to the merger, except with respect to cash received in lieu of
        fractional share interests in Cardinal Health common shares.


CONDITIONS TO THE OBLIGATIONS OF SYNCOR

     The obligations of Syncor to consummate the merger and the transactions
contemplated by the merger agreement are subject to the satisfaction of the
following conditions, unless waived by Syncor:

     - each of the representations and warranties of each of Cardinal Health and
       Mudhen Merger Corp. described under "-- Representations and Warranties"
       will be true and correct in all respects on the date of the merger
       agreement and on and as of the closing date of the merger as though made
       on and as of the closing date, except where the failure of the
       representations and warranties, in the aggregate, to be true and correct
       in all respects would not reasonably be expected to have a material
       adverse effect on Cardinal Health;

     - each of Cardinal Health and Mudhen Merger Corp. will have performed in
       all material respects each obligation and agreement and will have
       complied in all material respects with each covenant to be

                                        49


       performed and complied with by it under the merger agreement at or prior
       to the effective time of the merger;

     - each of Cardinal Health and Mudhen Merger Corp. will have furnished
       Syncor with a certificate dated the closing date of the merger signed on
       behalf of it by the Chairman, President or any Vice President to the
       effect that the conditions set forth above in the two preceding bullet
       points have been satisfied; and

     - since the date of the merger agreement, except to the extent contemplated
       by the provisions described under "-- Material Adverse Effect," there
       will not have been events or occurrences, individually or in the
       aggregate, that would have a material adverse effect on Cardinal Health.

CONDITIONS TO THE OBLIGATIONS OF CARDINAL HEALTH AND MUDHEN MERGER CORP.

     The obligations of Cardinal Health and Mudhen Merger Corp. to consummate
the merger and the transactions contemplated by the merger agreement are subject
to the satisfaction of the following conditions unless waived by Cardinal Health
and Mudhen Merger Corp.:

     - each of the representations and warranties of Syncor described under
       "-- Representations and Warranties" will be true and correct in all
       respects on the date of the merger agreement and on and as of the closing
       date of the merger as though made on and as of the closing date, except
       where the failure of the representations and warranties, in the
       aggregate, to be true and correct in all respects would not reasonably be
       expected to have a material adverse effect on Cardinal Health;

     - Syncor will have performed in all material respects each obligation and
       agreement and will have complied in all material respects with each
       covenant to be performed and complied with by it under the merger
       agreement at or prior to the effective time of the merger;

     - Syncor will have furnished Cardinal Health with a certificate dated the
       closing date of the merger signed on behalf of it by the Chairman,
       President or any Vice President to the effect that the conditions set
       forth above in the two preceding bullet points have been satisfied; and

     - since the date of the merger agreement, except to the extent contemplated
       by the provisions described under "-- Material Adverse Effect," there
       will have not been events or occurrences, individually or in the
       aggregate, that would have a material adverse effect on Syncor.

MATERIAL ADVERSE EFFECT


     A "material adverse effect" with respect to any party to the merger
agreement will be deemed to occur if there will have been a material adverse
effect on the business, financial condition or results of operations of that
party to the merger agreement and that party's subsidiaries, taken as a whole,
except to the extent that the adverse effect results from:


     - changes (1) in prevailing interest rates in the United States or
       financial market conditions in the United States, (2) in general economic
       conditions in the United States, or (3) in GAAP;

     - any developments, changes or consequences relating to or that could arise
       from the actual or prospective renewal of (or failure to renew) Syncor's
       agreement with Dupont Merck Pharmaceutical Company (and Bristol-Myers, as
       successor), dated December 19, 1993, as amended (prior to June 14, 2002),
       which we refer to as the BMS contract, any new terms that may be
       negotiated in any proposed or actual amended or new BMS contract, any
       negotiations with Bristol-Myers (or the substitute counterparty) directly
       relating to the BMS contract or any amendment to the BMS contract, or a
       new BMS contract, in each case, regardless of whether or not
       Bristol-Myers owns the product covered by the BMS contract; or

     - any developments, changes or consequences relating to the process for the
       possible sale of all or a portion of the business of CMI, including the
       failure to sell all or any portion of the CMI business, the level of
       interest of any parties in pursuing a sale or the value or other terms
       for a sale indicated by those

                                        50


       parties, and the pricing or other terms of any sale, or the effect of any
       accounting charges, adjustments and changes previously disclosed to
       Cardinal Health. For the purposes of the merger agreement, in determining
       whether there has been a material adverse effect on Syncor, any changes
       to or developments regarding the CMI business will be measured solely
       against the actual results of the CMI business for the fiscal year ended
       December 31, 2001.

TERMINATION

     The merger agreement may be terminated and the merger may be abandoned at
any time prior to the effective time of the merger (notwithstanding any approval
of the merger agreement by Syncor stockholders):

          (1) by mutual written consent of Cardinal Health and Syncor;

          (2) by either Cardinal Health or Syncor if there will be any law or
     regulation that makes completion of the merger illegal or otherwise
     prohibited, or if any judgment, injunction, order or decree of a court or
     other competent governmental authority enjoining Cardinal Health or Syncor
     from completing the merger will have been entered and the judgment,
     injunction, order or decree will have become final and nonappealable;
     provided that the party seeking to terminate the merger agreement pursuant
     to this provision of the merger agreement will have used its reasonable
     best efforts to remove the order, decree, ruling or injunction;

          (3) by either Cardinal Health or Syncor if the merger has not been
     completed before December 31, 2002, provided, however, that, in the event
     the condition described in the second bullet point under "-- Conditions to
     the Obligations of Each Party" has not been satisfied on or prior to
     December 31, 2002, this date will be extended to the earlier of the date
     that is ten business days after the date on which the condition described
     in the second bullet point under "-- Conditions to the Obligations of Each
     Party" is satisfied, and April 30, 2003; provided, further, that the right
     to terminate the merger agreement under this provision of the merger
     agreement will not be available to any party to the merger agreement whose
     failure or whose affiliate's failure to perform any material covenant or
     obligation under the merger agreement has been the primary cause of or
     resulted in the failure of the merger to occur on or before that date;

          (4) by Cardinal Health (a) if there has been a withdrawal,
     modification or change in the Syncor board of directors' recommendation in
     a manner adverse to Cardinal Health or (b) if the Syncor board of directors
     refuses to affirm the Syncor board of directors' recommendation within 20
     days of any written request from Cardinal Health;

          (5) by Cardinal Health or Syncor if, at the special meeting, the
     requisite vote of Syncor stockholders to approve the merger agreement was
     not obtained;

          (6) by Cardinal Health if there has been a violation or breach by
     Syncor of any agreement, covenant, representation or warranty contained in
     the merger agreement that has prevented or would prevent the satisfaction
     of the conditions described in the first and second bullet points under
     "-- Conditions to the Obligations of Cardinal Health and Mudhen Merger
     Corp.," at the time of the breach or violation and the breach or violation
     has not been waived by Cardinal Health nor cured by Syncor prior to the
     earlier of (a) 20 business days after the giving of written notice to
     Syncor of the breach and (b) December 31, 2002; or

          (7) by Syncor if there has been a violation or breach by Cardinal
     Health of any agreement, covenant, representation or warranty contained in
     the merger agreement that has prevented or would prevent the satisfaction
     of the conditions set forth in the first and second bullet points under
     "-- Conditions to the Obligations of Syncor," at the time of the breach or
     violation and the breach or violation has not been waived by Syncor nor
     cured by Cardinal Health prior to the earlier of (a) 20 business days after
     the giving of written notice to Cardinal Health of the breach and (b)
     December 31, 2002.

                                        51


EFFECT OF TERMINATION

     In the event of the termination of the merger agreement pursuant to its
terms, the merger agreement will become void and have no effect, except for the
provisions relating to confidentiality, governing law, jurisdiction and venue,
expenses and effect of termination, without any liability on the part of any
party to the merger agreement or the directors, officers, stockholders or
shareholders. Nothing in the merger agreement relieves any party to the merger
agreement of liability for an intentional and material breach of any provision
of the merger agreement; provided, however, that, if it is judicially determined
that termination of the merger agreement was caused by an intentional and
material breach of the merger agreement, then, in addition to other remedies at
law or equity for breach of the merger agreement, the parties to the merger
agreement have agreed that the party so found to have intentionally breached the
merger agreement will indemnify and hold harmless the other parties to the
merger agreement for their respective out-of-pocket costs, fees and expenses of
their counsel, accountants, financial advisors and other experts and advisors,
as well as fees and expenses incident to negotiation, preparation and execution
of the merger agreement and related documentation and the special meeting and
consents, which we refer to as merger-related expenses.

     If the merger agreement is terminated pursuant to the provisions described
in clause (4) or (5) under "-- Termination," then Syncor will, within three
business days following the termination by Cardinal Health, or, in the case of a
termination by Syncor, concurrently with the termination, pay to Cardinal Health
in reimbursement of Cardinal Health's actual and documented merger-related
expenses an amount in cash up to but not in excess of $4,000,000 in the
aggregate.


     If the merger agreement is terminated pursuant to the provisions described
in clause (4) or (5) described under "-- Termination" and at any time prior to
that termination a bona fide proposal regarding a competing transaction with
respect to Syncor has not been made to Syncor, and there has not been any public
disclosure of any bona fide proposal or expression of interest by a third party
regarding a competing transaction, or the merger agreement is terminated
pursuant to clause (1) or (3) under "-- Termination" and at any time prior to
that termination a bona fide proposal regarding a competing transaction with
respect to Syncor has been made to Syncor, or any bona fide proposal or
expression of interest by a third party regarding a competing transaction has
been publicly disclosed and within six months after the date of the termination
Syncor enters into a letter of intent, agreement-in-principle, acquisition
agreement or other similar agreement, or publicly announces, a "business
combination" (as defined below), then Syncor will, upon completion of the
business combination, pay to Cardinal Health a termination fee in an amount
equal to $24,125,000 (less amounts paid in reimbursement of Cardinal Health's
merger-related expenses).



     If the merger agreement is terminated pursuant to the provisions described
in clause (4) or (5) under "-- Termination," and at any time prior to the
termination a bona fide proposal regarding a competing transaction with respect
to Syncor has been made to Syncor, or any bona fide proposal or expression of
interest by a third party regarding a competing transaction has been publicly
disclosed, then Syncor will, in the case of a termination by Cardinal Health,
within three business days following the termination or, in the case of a
termination by Syncor, concurrently with the termination, pay to Cardinal Health
a termination fee in an amount equal to $12,062,500 (less amounts paid in
reimbursement of Cardinal Health's merger-related expenses); and, furthermore,
if within 12 months after the date of the termination Syncor enters into a
letter of intent, agreement-in-principle, acquisition agreement or other similar
agreement with respect to, or publicly announces, a business combination or
consummates a business combination, then Syncor will, upon the completion of the
business combination, pay to Cardinal Health an additional termination fee in an
amount equal to $12,062,500.


     As used in this section, "business combination" means:

     - a merger, consolidation, share exchange, business combination or similar
       transaction involving Syncor as a result of which Syncor stockholders
       prior to the transaction cease to own, in the aggregate, at least 60% of
       the voting securities of the entity surviving or resulting from the
       transaction (or the ultimate parent entity thereof);

                                        52


     - a sale, lease, exchange, transfer or other disposition of more than 33%
       of the assets of Syncor and its subsidiaries, taken as a whole, in a
       single transaction or a series of related transactions (other than to
       customers in the ordinary course of business or the disposition of all or
       part of the business or operations of CMI); or

     - the acquisition, by a person (other than Cardinal Health or any affiliate
       of Cardinal Health) or "group" (as defined under Section 13(d) of the
       Exchange Act) of "beneficial ownership" (as defined in Rule 13d-3 under
       the Exchange Act) of more than 33% of Syncor common stock, whether by
       tender or exchange offer or otherwise.

AMENDMENT

     The merger agreement may be amended by the parties to the merger agreement
at any time before or after approval of the merger agreement by Syncor
stockholders, but, after any approval of the merger agreement by Syncor
stockholders, no amendment will be made that by law requires further approval or
authorization of Syncor stockholders (unless that approval or authorization is
obtained). Any amendment must be made by an instrument in writing signed on
behalf of each of the parties to the merger agreement.

EXTENSION; WAIVER

     At any time prior to the effective time of the merger, Cardinal Health
(with respect to Syncor) and Syncor (with respect to Cardinal Health and Mudhen
Merger Corp.), by action taken or authorized by their respective boards of
directors, may, to the extent legally allowed,


     - extend the time for the performance of any of the obligations or other
       acts of that party to the merger agreement,



     - waive any inaccuracies in the representations and warranties contained in
       the merger agreement or in any document delivered pursuant to the merger
       agreement, and



     - waive compliance with any of the agreements or conditions contained in
       the merger agreement. Any agreement on the part of a party to the merger
       agreement to any extension or waiver will be valid only if set forth in a
       written instrument signed on behalf of that party to the merger
       agreement.


EXPENSES

     Subject to the provisions described under "-- Effect of Termination," all
costs and expenses incurred in connection with the merger agreement and the
transactions contemplated by the merger agreement will be paid by the party to
the merger agreement incurring the cost or expense.

SYNCOR RIGHTS AGREEMENT AMENDMENT


     In connection with the execution of the merger agreement, Syncor and
American Stock Transfer and Trust Company, as rights agent, executed the First
Amendment to the Rights Agreement, dated as of June 14, 2002, amending the
rights agreement between Syncor and the rights agent, dated as of September 28,
1999, so as to provide that neither Cardinal Health nor Mudhen Merger Corp. will
be deemed to be an acquiring person (as defined in the rights agreement), and
that no stock acquisition date, triggering event or distribution date (as such
terms are defined in the rights agreement) will occur by reason of the execution
of the merger agreement, or the completion of the merger or any other
transaction contemplated by the merger agreement. The rights agreement amendment
further provides that the rights agreement and the rights established by the
rights agreement will terminate in all respects immediately prior to the
completion of the merger. The rights agreement amendment further provides that
if, for any reason, the merger agreement is terminated and the merger is
abandoned, then the rights agreement amendment will be of no further force and
effect and the rights agreement will remain exactly the same as it existed
immediately prior to execution of the rights agreement amendment. See
"Comparison of Shareholder/Stockholder Rights -- Rights Agreement."



     The foregoing is a summary of the rights agreement amendment. This summary
is qualified in its entirety by reference to the rights agreement amendment,
which is incorporated by reference in this document.


     The merger agreement provides that Syncor cannot further amend the rights
agreement without Cardinal Health's consent.

                                        53


                         THE SUPPORT/VOTING AGREEMENTS

     Concurrently with the execution of the merger agreement, Cardinal Health
executed with each of Monty Fu, Chairman of the Board of Syncor, and Robert G.
Funari, President and Chief Executive Officer of Syncor, a support/voting
agreement pursuant to which each of the stockholders agreed that:


     - he will not, and will use reasonable best efforts not to permit any
       controlled affiliate to, contract to sell, sell or otherwise transfer or
       dispose of any Syncor shares or any interest in the Syncor shares he owns
       or securities convertible into Syncor shares or any voting rights with
       respect to Syncor shares he owns, other than (1) pursuant to the merger
       or (2) with Cardinal Health's consent, which consent will not be
       unreasonably withheld, unless the individual or entity to whom Syncor
       shares have been sold, transferred or disposed agrees in writing to be
       bound by the support/voting agreement as if a party to the support/voting
       agreement;


     - in his capacity as a Syncor stockholder, he will not, and will use
       reasonable best efforts not to permit any controlled affiliate to,
       directly or indirectly, solicit, initiate, encourage or facilitate, or
       furnish or disclose nonpublic information in furtherance of, any
       inquiries or the making of any proposal with respect to any competing
       transaction, or negotiate, explore or otherwise engage in discussions
       with any person (other than Cardinal Health, Mudhen Merger Corp. or their
       respective directors, officers, employees, agents and representatives)
       with respect to any competing transaction, or enter any agreement,
       arrangement or understanding requiring it to abandon, terminate or fail
       to complete the merger or any other transactions contemplated by the
       merger agreement or to otherwise assist in the effectuation of any
       competing transaction; provided, however, that nothing in his
       support/voting agreement prevents him from taking any action or omitting
       to take action solely as a member of the Syncor board of directors (or a
       committee of the Syncor board of directors) or, at the direction of the
       Syncor board of directors (or a committee of the Syncor board of
       directors), as a Syncor officer or employee;


     - that all of the Syncor shares beneficially owned by him, directly or
       indirectly, at the record date for the special meeting called to consider
       and vote to approve the merger agreement, will be present in person or by
       proxy and will be voted in favor of the merger agreement, and not in
       favor of any competing transaction; and



     - he will, upon Cardinal Health's request, execute an irrevocable proxy
       appointing Cardinal Health as his attorney and proxy to vote in favor of
       the merger agreement and the transactions contemplated thereby. Cardinal
       Health has not asked for this irrevocable proxy as of the date of this
       document.


     In consideration of the stockholder's undertakings in his support/voting
agreement, Cardinal Health agrees to use its reasonable best efforts to provide
reasonably promptly to the stockholder and/or his controlled affiliates the
ability under U.S. federal securities laws to sell, pledge, transfer or
otherwise dispose of all or any portion of the Cardinal Health common shares
received by the stockholder as a result of the merger if the restriction results
primarily from the stockholder entering into, or complying with, the terms of
his support/voting agreement.


     Each of the support/voting agreements may be terminated at the option of
any party to the agreement at any time upon the earliest of (1) termination of
the merger agreement, (2) the effective time of the merger and (3) April 30,
2003. The number of Syncor shares beneficially held (excluding Syncor options)
by Messrs. Fu and Funari as of the record date were [       ] shares, and
[       ] shares, respectively, which represent approximately [     ]% of the
outstanding Syncor shares as of that date.



     The foregoing is a summary of the material provisions of, and is qualified
by reference to, the support/voting agreements of Messrs. Fu and Funari, a form
of which is filed as an exhibit to the registration statement of which this
document forms a part.


                                        54


                 MATERIAL U.S. FEDERAL INCOME TAX CONSEQUENCES


     The following general discussion summarizes the anticipated material U.S.
federal income tax consequences of the merger to Syncor stockholders that
exchange their Syncor shares for Cardinal Health common shares in the merger.
This discussion addresses only those Syncor stockholders that hold their Syncor
common stock as a capital asset, and does not address all of the U.S. federal
income tax consequences that may be relevant to particular Syncor stockholders
in light of their individual circumstances or to Syncor stockholders that are
subject to special rules, such as:


     - financial institutions;

     - mutual funds;

     - tax-exempt organizations;

     - insurance companies;

     - dealers in securities or foreign currencies;

     - traders in securities that elect to apply a mark-to-market method of
       accounting;

     - foreign holders;


     - persons that hold their Syncor shares as part of a hedge, straddle,
       constructive sale or conversion transaction; or


     - Syncor stockholders that acquired their shares upon the exercise of
       Syncor options or otherwise as compensation.


     The following discussion is not binding on the Internal Revenue Service. It
is based upon the Code, laws, regulations, rulings and decisions in effect as of
the date of this document, all of which are subject to change, possibly with
retroactive effect. Tax consequences under state, local and foreign laws and
U.S. federal laws other than U.S. federal income tax laws, are not addressed.


     Syncor stockholders are urged to consult their tax advisors as to the
specific tax consequences to them of the merger, including the applicability and
effect of U.S. federal, state and local and foreign income and other tax laws in
their particular circumstances.


     Skadden, Arps, Slate, Meagher & Flom LLP, special counsel to Syncor, has
delivered an opinion, a copy of which has been filed as an exhibit to the
registration statement, to the effect that, provided the merger is consummated
in the manner described in the merger agreement (1) the merger will constitute a
"reorganization" (within the meaning of Section 368(a) of the Code) and (2) no
gain or loss will be recognized by Syncor stockholders upon the receipt of
Cardinal Health common shares in exchange for Syncor shares pursuant to the
merger, except with respect to cash received in lieu of fractional share
interests in Cardinal Health common shares. It is a condition to the completion
of the merger that Syncor receive an opinion, dated the closing date of the
merger, to the same effect. An opinion of counsel represents counsel's best
legal judgment and is not binding on the Internal Revenue Service or any court.
No ruling has been, or will be, sought from the Internal Revenue Service as to
the U.S. federal income tax consequences of the merger.



     Based on and subject to the above opinion, Syncor stockholders that
exchange their Syncor common stock solely for Cardinal Health common shares in
the merger will not recognize gain or loss for U.S. federal income tax purposes,
except with respect to cash, if any, they receive in lieu of a fractional
Cardinal Health common share. Each holder's aggregate tax basis in Cardinal
Health common shares received in the merger will be the same as that holder's
aggregate tax basis in Syncor common stock surrendered in the merger, decreased
by the amount of any tax basis allocable to any fractional share interest for
which cash is received. The holding period of Cardinal Health common shares
received in the merger by a holder of Syncor common stock will include the
holding period of Syncor common stock that the holder surrendered in the merger.


     A holder of Syncor common stock that receives cash in lieu of a fractional
Cardinal Health common share will recognize gain or loss equal to the difference
between the amount of cash received and that holder's

                                        55


tax basis in Cardinal Health common shares that is allocable to the fractional
Cardinal Health common share. That gain or loss generally will constitute
capital gain or loss and will constitute long-term capital gain or loss if the
Syncor stockholder has held the shares for more than 12 months on the date of
the merger.


     The foregoing discussion of material U.S. federal income tax consequences
is for general information purposes only and may not apply to all Syncor
stockholders. The opinion of Skadden, Arps, Slate, Meagher & Flom LLP is not
binding on the Internal Revenue Service. Because of the complexity of the tax
laws, and because the tax consequences of the merger for any particular Syncor
stockholder may be affected by matters not discussed in this document, each
Syncor stockholder is urged to consult his own tax adviser with respect to the
Syncor stockholder's own particular circumstances and with respect to the
specific tax consequences of the merger to the Syncor stockholder, including the
applicability and effect of U.S. state and local and foreign tax laws, estate
tax laws and proposed changes in applicable tax laws.


                                        56


                                 THE COMPANIES

BUSINESS OF SYNCOR

     Syncor is a provider of specialty services and products used in the
diagnosis, treatment and management of heart disease, cancer and other
disorders, the nation's leading provider of radiopharmacy services, and a
leading provider of outpatient medical imaging services.

     Syncor compounds, dispenses and distributes unit-dose radiopharmaceuticals
made by a number of manufacturers. Syncor also distributes radiopharmaceuticals
in bulk to hospitals and other customers that compound and dispense the product
themselves. Syncor's primary products are cardiology imaging agents used in
diagnosing heart problems. In 2001, sales of Cardiolite(R) represented an
estimated 58% of sales of all cardiac imaging agents in the United States and
41.2% of Syncor's total sales.

     Syncor acts as the primary distributor of Cardiolite(R), as well as a
distributor of Bristol-Myers' other radiopharmaceutical products, under the
terms of a supply and distribution agreement with Bristol-Myers. Under the terms
of the distribution and supply agreement, Syncor has exclusive rights to
distribute Cardiolite(R) within specified geographic areas surrounding most of
its existing U.S. radiopharmacies. Syncor's exclusive rights to distribute
Cardiolite(R) also extend to new radiopharmacies that it may develop or acquire
in geographic areas where Bristol-Myers has no preexisting distribution
arrangement. In other areas, and in areas outside of the specified areas
surrounding its radiopharmacies, Syncor's rights to distribute Cardiolite(R) are
nonexclusive. Its rights to distribute other Bristol-Myers products, including
Thallium, a generic cardiac imaging agent which accounted for 6.3% of its net
sales in 2001, also are nonexclusive. No other product constitutes more than
1.4% of Syncor's net sales.

     Syncor also produces fluorodeoxyglucose, which we refer to as FDG, which
Syncor distributes through its network of radiopharmacies. FDG is the most
commonly used radioisotope in positron emission tomography, which we refer to as
PET, a highly sensitive imaging technology used to diagnose cancer and manage
cancer therapies. When administered intravenously, FDG can reveal how certain
organs and tissues are functioning by measuring glucose metabolism. FDG is
widely used to study organ and tissue functions in neurology, cardiology and
oncology. FDG is produced in cyclotrons and has a half-life of only 110 minutes.
In order to effectively provide PET radiopharmaceuticals, it is essential to
have adequate supplies of FDG in proximity to the radiopharmacy where the PET
radiopharmaceutical is to be compounded and dispensed. To ensure an adequate
supply of FDG, Syncor has built or acquired nine cyclotron facilities in key
areas and has entered into arrangements with several local universities and
other cyclotron owners and operators to supply it with this critical component
of PET radiopharmaceuticals in other areas.


     Syncor produces and distributes Iodine-123 capsules. Iodine-123 is a
radiopharmaceutical used to diagnose and treat thyroid disorders. Syncor
manufactures Iodine-123 capsules at its Golden, Colorado facility. Syncor's
radiopharmacies also distribute Iodine-125 brachytherapy seeds, which are used
to treat prostate cancer. Syncor manufactured its own line of Iodine-125
brachytherapy seeds until February 2002, when it discontinued production of the
seeds.


     Syncor offers more than 50 brand name and generic radiopharmaceuticals.
Syncor is applying strengths developed in the marketing and distribution of
Cardiolite(R) to position itself to become a major provider of PET
radiopharmaceuticals, brachytherapy seeds and other time-sensitive, complex
pharmaceutical products, such as Xigris, where it believes there are other
marketing opportunities. Syncor has a strategic partnership with Eli Lilly and
Company to be their exclusive rapid response provider of Xigris, a biotechnology
compound used to treat severe sepsis, a life-threatening condition if not
treated immediately. In February 2002, Syncor entered into an agreement with
IDEC Pharmaceuticals Corporation to distribute Zevalin(R), a novel
radioimmunotherapy recently approved by the U.S. Food and Drug Administration
for the treatment of certain Non-Hodgkin's Lymphomas.

     Syncor has other businesses that complement its radiopharmacy services
business. Syncor provides radiology technical staff on a temporary or full-time
basis to hospitals, radiology clinics, nuclear cardiology clinics and physician
offices in over 30 markets nationwide. On August 1, 2001, Syncor acquired
Inovision

                                        57


Radiation Measurements, LLC and its affiliate, Victoreen, LLC, both of which now
operate as Syncor Radiation Management, LLC. As a result of the acquisition,
Syncor now manufactures and supplies radiation measurement equipment and related
accessories used by nuclear medicine departments, radiopharmacies and other
businesses that handle radioactive materials. On August 31, 2001, Syncor
acquired InteCardia, Inc., a provider of cardiovascular services through the
operation of a state-of-the-art cardiac diagnostic facility that offers
outpatient cardiac catheterization, nuclear cardiology and echocardiography.
InteCardia also offers nuclear cardiology groups with full turnkey services,
including the provision of imaging and cardiac stress equipment and nuclear
medicine technologists.

     In 1994, Syncor introduced the SECURE(R) Safety Insert System, which is
designed to eliminate the potential for contamination of lead-lined or tungsten
radiopharmaceutical containers with radioactive material or the blood from used
radiopharmaceutical syringes. With the SECURE(R) Safety Insert System, the risk
of needle sticks also is reduced significantly. Syncor believes that its
patented SECURE(R) Safety Insert System is the only system currently available
that meets new, more stringent Occupational Safety and Health Administration
industry standards that went into effect in July 2001. Syncor also has patent
rights to a family of tungsten radiopharmaceutical delivery systems that Syncor
refers to as the "Pigs." The Pigs are radiopharmaceutical containers that are
smaller and weigh considerably less than traditional containers used to
transport radiopharmaceuticals and set new industry standards for the safe
transport and handling of radiopharmaceuticals, including FDG. Syncor's tungsten
containers also provide enhanced radiation shielding compared to lead-lined
delivery systems typically used by Syncor's competitors, resulting in a
reduction in radiation exposure to Syncor's pharmacy personnel and customers.

     Syncor also licenses to its customers its proprietary Windows-based
SYNtrac(TM), Unit Dose Manager and NucLink(TM) integrated software and hardware
systems to assist them in the management of their nuclear medicine departments
and to facilitate electronic communication with Syncor's radiopharmacies. As of
December 31, 2001, Syncor licensed its software systems to more than 1,600 of
its radiopharmacy customers.


     Syncor's 130 domestic radiopharmacies serve hospitals, medical clinics and
medical imaging centers in 48 states and supplies more than 50% of the United
States for these specialized services. Syncor also owns or operates 19
radiopharmacies in 13 foreign countries and in Puerto Rico.


     Syncor's principal radiopharmacy service customers are:

     - corporate account customers, such as group purchasing organizations, or
       GPOs;

     - local independent hospitals and medical clinics; and

     - community-based, multiple-facility integrated health care networks, which
       we refer to as IHNs.

     Corporate account customers, either GPOs or proprietary multi-hospital
groups, negotiate contracts on behalf of IHNs, independent hospitals, and
clinics. These contracts are multi-year contracts, although certain contracts
have clauses that permit the GPO or multi-hospital group to cancel the contract
if certain conditions occur. Syncor estimates that it has 1,165 customers
committed under a national or regional contract. Sales to members or affiliates
of its corporate account customers were approximately $225 million in 2001,
representing nearly 29% of its net sales, compared to approximately $187
million, or nearly 30% of its net sales in 2000. Syncor's largest corporate
account customers include AmeriNet Inc. and Health Trust Purchasing Group
(formerly Columbia/HCA). In 2001, sales to AmeriNet and Health Trust represented
10% and 6%, respectively, of Syncor's net sales. No other corporate account
customer accounts for as much as 5% of Syncor's net sales.

     Syncor also has customers that are affiliated with GPOs that do not have
contracts with us. Sales to these customers were approximately $191 million in
2001, representing nearly 25% of Syncor's net sales, compared to approximately
$168 million, or 26.8% of Syncor's net sales in 2000. No customers in this sales
category accounted for as much as 5% of Syncor's net sales. Despite the fact
that the majority of IHN's and hospitals hold membership or are affiliated with
a GPO or proprietary multi-hospital group, some IHN's and local independent
hospitals choose not to participate in a national agreement. Syncor's sales to
these customers were approximately $133 million in 2001, representing nearly
17.2% of Syncor's net sales. This compares to

                                        58


$104 million, representing 16.5% of Syncor's net sales, in 2000. No local
independent hospital or clinic accounted for as much as 5% of Syncor's net
sales.

     Syncor markets and sells its radiopharmacy services and products and
services in the United States directly through a dedicated sales force of more
than 100 national and regional sales and marketing personnel. Syncor's sales and
marketing personnel are responsible for developing and managing personnel
relationships and for communicating the benefits of working with Syncor. To
maintain a highly effective local presence, Syncor's field sales force works
closely with local radiopharmacy managers to ensure that Syncor's customers'
expectations are met on a daily basis. Syncor also has personnel dedicated to
targeting and managing contracts with multi-hospital groups, including GPOs,
proprietary hospital systems, and multi-hospital alliances. In addition, Syncor
has a specialty sales team designed to increase Syncor's sales in new areas
separate from traditional nuclear medicine, such as brachytherapy and PET.

     Syncor also relies indirectly on the sales and marketing efforts by
manufacturers of the radiopharmaceuticals Syncor distributes. For example,
Syncor's sales and marketing force works closely with Bristol-Myers' sales and
marketing personnel to make joint sales calls, prepare marketing and sales
materials, and educate customers regarding the Bristol-Myers products Syncor
distributes.

     Syncor has a nationwide distribution network consisting of a national
distribution center in Toledo, Ohio, and three regional distribution centers.
Syncor's national distribution center maintains a central warehouse of critical
supplies in order to facilitate bulk-purchasing and minimize warehousing and
inventory requirements at its radiopharmacies.

     Syncor also is a leading independent provider of outpatient medical imaging
services. Its 70 outpatient medical imaging centers in the United States are
organized in clusters, located primarily in Arizona, California, Florida and
Texas. Syncor also owns or operates 19 medical imaging centers in five foreign
countries and Puerto Rico. Medical imaging services principally are noninvasive
procedures that generate representations of internal anatomy and convert them to
film or digital media to aid in the detection and diagnosis of diseases and
other disorders. By concentrating centers in targeted markets, Syncor offers
managed care organizations and other third-party payors a full complement of
medical imaging services, including magnetic resonance imaging, or MRI, computed
tomography, or CT, traditional X-ray, mammography, ultrasound and fluoroscopy
imaging, as well as PET imaging services. On June 14, 2002, Syncor announced
that it is exiting the medical imaging business and is entertaining offers for
CMI.


     As previously disclosed, in the quarter ending June 30, 2002, Syncor
recorded an after-tax charge of approximately $28 million related to its
decision to divest CMI, the reorganization of its international operations
announced earlier in 2002, and other related operating charges. This charge,
which is unrelated to the proposed merger with Cardinal Health, relates to
facility closings, employee termination costs and the write-down of assets,
including additional provisions for allowance for uncollectible accounts and
contractual allowances, as well as corporate charges related to the
reorganization of Syncor's information technology division and the departure of
former Syncor executives.


     Syncor has its principal executive offices at 6464 Canoga Avenue, Woodland
Hills, California 91367-2407, and its telephone number is (818) 737-4000.
Additional information regarding Syncor is contained in its filings with the SEC
pursuant to the Exchange Act. See "Where You Can Find More Information."

BUSINESS OF CARDINAL HEALTH


     Cardinal Health is a leading, global provider of products and services
supporting the health care industry. Cardinal Health employs nearly 50,000
people on five continents and produces annual revenues of more than $44 billion.


                                        59


     Cardinal Health offers a broad spectrum of products and services to both
upstream customers, including pharmaceutical, biotech, medical/surgical and lab
manufacturers, and downstream customers, including pharmacies and hospitals,
physician offices and other sites of care, through four primary business units:


     - Pharmaceutical distribution and provider services: Cardinal Health
       distributes a broad line of pharmaceutical and other health care products
       to hospital, retail and alternate-site pharmacies. We also operate
       several specialty health care businesses which offer value-added services
       such as repackaging and third-party logistics management, as well as
       specialty distribution of oncology products and other specialty products.
       Cardinal Health operates centralized nuclear pharmacies that prepare and
       deliver radio-pharmaceuticals, provides integrated pharmacy management
       and temporary staffing, and manages The Medicine Shoppe(R), a retail
       pharmacy franchise.



     - Medical-surgical products and services: Cardinal Health manufactures and
       distributes a broad range of medical, surgical and laboratory products,
       representing more than 3,000 suppliers in addition to our own line of
       self-manufactured products. We self-manufacture sterile and non-sterile
       procedure kits, surgical drapes, gowns and apparel, medical and surgical
       gloves, surgical suction and irrigation systems, respiratory therapy
       products, surgical instruments, instrument repair services, and special
       biopsy procedure devices. We also provide a range of consulting services
       that help hospitals improve quality and efficiency.



     - Pharmaceutical technologies and services: Cardinal Health provides
       services to the developers and marketers of pharmaceutical and
       biotechnology products and offers a spectrum of complementary services
       including unique drug delivery systems. We are a leading provider of
       contract manufacturing of oral and sterile liquid and injectible
       pharmaceuticals, as well as other health care products in topical,
       inhaled and ophthalmic formulations. We also provide contract drug
       development and marketing services, and we are the leading provider of
       diversified clinical and commercial packaging services in the U.S. and
       Europe.



     - Automation and information services: Cardinal Health operates
       leading-edge businesses focused on meeting customer needs through unique
       and proprietary automation and information products and services. These
       include our Pyxis point-of-use systems that automate the distribution and
       management of medications and supplies in hospitals and other health care
       facilities. We also provide information systems that analyze clinical
       outcomes and assist pharmacies in obtaining reimbursement from third
       parties.


     Cardinal Health has expanded into these businesses through a combination of
internal growth and acquisitions to develop beyond its original drug
distribution business. On February 18, 1998, Cardinal Health completed its
acquisition of MediQual Systems, Inc., a leading supplier of clinical
information management systems and services to the health care industry. On
August 7, 1998, Cardinal Health completed a merger with R.P. Scherer
Corporation, an international developer and manufacturer of drug delivery
systems. On February 3, 1999, Cardinal Health completed a merger transaction
with Allegiance Corporation, a McGaw Park, Illinois-based distributor and
manufacturer of medical, surgical and laboratory products and a provider of
cost-saving services. On September 10, 1999, Cardinal Health completed a merger
transaction with Automatic Liquid Packaging, a Woodstock, Illinois-based custom
manufacturer of sterile liquid pharmaceuticals and other healthcare products. On
August 16, 2000, Cardinal Health completed the purchase of Bergen Brunswig
Medical Corporation, a distributor of medical, surgical and laboratory supplies
to doctors' offices, long-term care and nursing centers, hospitals and other
providers of care. On February 14, 2001, Cardinal Health completed a merger
transaction with Bindley Western Industries, Inc., an Indianapolis,
Indiana-based wholesale distributor of pharmaceuticals and provider of nuclear
pharmacy services. Cardinal Health has also completed a number of smaller
acquisition transactions (asset purchases, stock purchases and mergers) during
the last five years, including transactions involving MedSurg Industries, Inc.,
Rexam Cartons Inc., International Processing Corporation, American Threshold
Industries, Inc., SP Pharmaceuticals, L.L.C., Magellan Laboratories Incorporated
and Boron, LePore & Associates, Inc.

     Cardinal Health and Mudhen Merger Corp. each have their principal executive
office at 7000 Cardinal Place, Dublin, Ohio 43017, and their telephone number is
(614) 757-5000. Additional information concerning

                                        60



Cardinal Health and its subsidiaries is included in the Cardinal Health
documents filed with the SEC, which are incorporated by reference in this
document. See "Where You Can Find More Information."


MUDHEN MERGER CORP.

     Mudhen Merger Corp. is a wholly owned subsidiary of Cardinal Health formed
for the purpose of effecting the merger.

                                        61


                  DESCRIPTION OF CARDINAL HEALTH CAPITAL STOCK


     The following is a summary of certain rights of Cardinal Health
shareholders. Reference is made to Cardinal Health's articles of incorporation
and code of regulations, in each case, as amended and restated, copies of which
are filed as exhibits to the registration statement of which this document is a
part and are incorporated into this document by reference. See "Where You Can
Find More Information" for information on how to obtain a copy of Cardinal
Health's articles of incorporation or code of regulations.


AUTHORIZED AND OUTSTANDING SHARES


     Cardinal Health's articles of incorporation authorize Cardinal Health to
issue up to 750,000,000 Cardinal Health common shares. On August 28, 2002,
approximately 445,654,250 Cardinal Health common shares were issued and
outstanding, approximately 15,921,400 Cardinal Health common shares were held in
treasury, approximately 102,163,550 Cardinal Health common shares were reserved
for issuance under Cardinal Health's stock incentive and deferred compensation
plans and approximately 14,700,000 Cardinal Health common shares were reserved
for issuance under Cardinal Health's equity shelf registration statement. Based
on the number of Syncor shares outstanding and the number of Syncor options
outstanding (including Syncor options that are "out-of-the-money") as of the
record date, Cardinal Health estimates that in connection with the merger, it
will issue approximately [     ] Cardinal Health common shares. Cardinal
Health's articles of incorporation also authorize Cardinal Health to issue up to
5,000,000 Class B common shares, none of which Cardinal Health Class B common
shares are outstanding, and 500,000 nonvoting preferred shares, none of which
Cardinal Health nonvoting preferred shares are outstanding. From time to time,
Cardinal Health may issue additional authorized but unissued Cardinal Health
common shares for share dividends, stock splits, employee benefit programs,
financing and acquisition transactions, and other general purposes. Those
Cardinal Health common shares will be available for issuance without action by
Cardinal Health shareholders, unless the action is required by applicable law or
the rules of the New York Stock Exchange or any other stock exchange on which
Cardinal Health common shares may be listed in the future. All outstanding
Cardinal Health common shares are fully paid and nonassessable. Cardinal Health
shareholders do not have preemptive rights and have no rights to convert their
Cardinal Health common shares into any other security. All Cardinal Health
common shares are entitled to participate equally and ratably in dividends, when
and as declared by the Cardinal Health board of directors.


VOTING


     Cardinal Health shareholders are entitled to one vote per Cardinal Health
common share for the election of directors and upon all matters on which
Cardinal Health shareholders are entitled to vote. Holders of Cardinal Health
Class B common shares (if any are issued in the future) are entitled to
one-fifth of one vote per Cardinal Health Class B common share in the election
of directors and upon all matters on which Cardinal Health shareholders are
entitled to vote. Under certain circumstances, holders of Cardinal Health Class
B common shares have a separate class vote. Under Ohio law, Cardinal Health
shareholders are afforded the right to vote their Cardinal Health common shares
cumulatively for the election of nominees to fill the particular class of
directors to be elected at each annual meeting, subject to compliance with
certain procedural requirements.


ANTI-TAKEOVER PROVISIONS OF OHIO REVISED CODE

     Chapter 1704 of the Ohio Revised Code generally provides that any person
that acquires 10% or more of a corporation's voting stock (thereby becoming an
"interested shareholder") may not engage in a wide range of "business
combinations" with the corporation for a period of three years following the
date the person became an interested shareholder, unless the directors of the
corporation have approved the transactions or the interested shareholder's
acquisition of shares of the corporation prior to the date the interested
shareholder

                                        62


became a shareholder of the corporation. These restrictions on interested
shareholders do not apply under certain circumstances, including, but not
limited to, the following:

     - if the corporation's original articles of incorporation contain a
       provision expressly electing not to be governed by Chapter 1704 of the
       Ohio Revised Code;

     - if the corporation, by action of its shareholders, adopts an amendment to
       its articles of incorporation expressly electing not to be governed by
       Chapter 1704 of the Ohio Revised Code; or

     - if, on the date the interested shareholder became a shareholder of the
       corporation, the corporation did not have a class of voting shares
       registered or traded on a national securities exchange.

     Cardinal Health's articles of incorporation do not contain a provision
electing not to be governed by Chapter 1704 of the Ohio Revised Code. Under
Section 1701.831 of the Ohio Revised Code, unless the articles of incorporation
or code of regulations of a corporation otherwise provide, any control share
acquisition of an "issuing public corporation" can be made only with the prior
approval of the shareholders of the corporation. A "control share acquisition"
is defined as any acquisition of shares of a corporation that, when added to all
other shares of that corporation owned by the acquiring person, would enable
that person to exercise levels of voting power in any of the following ranges:
at least 20% but less than 33 1/3%, at least 33 1/3% but less than 50%, or 50%
or more. Cardinal Health falls within the definition of issuing public
corporation, but Cardinal Health's code of regulations expressly provides that
the provisions of Section 1701.831 of the Ohio Revised Code do not apply to
Cardinal Health.

TRANSFER AGENT AND REGISTRAR


     The transfer agent and registrar for Cardinal Health common shares is
EquiServe Trust Company, Providence, Rhode Island.


                                        63


                  COMPARISON OF SHAREHOLDER/STOCKHOLDER RIGHTS


     As a result of the merger, Syncor stockholders will receive Cardinal Health
common shares in exchange for their Syncor shares. The following is a summary of
certain material differences between the rights of holders of Syncor shares and
the rights of holders of Cardinal Health common shares. These differences arise
in part from the differences between Delaware law governing business
corporations, including the Delaware General Corporation Law, commonly referred
to as the DGCL, and Ohio law governing business corporations, including the Ohio
General Corporation Law, commonly referred to as the OGCL. Additional
differences arise from the governing instruments of the two companies (in the
case of Syncor, its certificate of incorporation and by-laws, in each case, as
amended and restated, and, in the case of Cardinal Health, its articles of
incorporation and its code of regulations, in each case, as amended and
restated). Although it is impractical to compare all of the aspects in which
Delaware law and Ohio law and Syncor's and Cardinal Health's governing
instruments differ with respect to stockholders' or shareholders' rights, as the
case may be, the following discussion summarizes certain significant differences
between them.



AUTHORIZED CAPITAL SHARES


                                            

CARDINAL HEALTH                                SYNCOR

  - 750,000,000 Cardinal Health common shares    - 200,000,000 Syncor shares
  - 5,000,000 Cardinal Health Class B common
shares
  - 500,000 Cardinal Health nonvoting
preferred shares

PUBLIC MARKET FOR THE SHARES

CARDINAL HEALTH                                SYNCOR

    Cardinal Health common shares are listed       Syncor shares are quoted on The Nasdaq
on the New York Stock Exchange.                National Market.

SIZE OF THE BOARD OF DIRECTORS

CARDINAL HEALTH                                SYNCOR

    The OGCL provides that the board of            The DGCL provides that the board of
directors of an Ohio corporation with more     directors of a Delaware corporation must
than two shareholders must consist of three    consist of at least one individual, with the
or more individuals, with the number           number specified in or fixed in accordance
specified in or fixed in accordance with the   with the certificate of incorporation or by-
articles of incorporation or code of           laws of the corporation. Syncor's certificate
regulations of the corporation. Cardinal       of incorporation and by-laws provide for the
Health's code of regulations provides that     number of directors to be fixed by majority
the number of directors may not be fewer than  vote of the entire Syncor board of directors;
nine nor greater than 15. Currently, there     the number of directors of Syncor currently
are 15 directors.                              is nine.



CLASSES OF DIRECTORS

     A classified board of directors is one in which some, but not all, of the
directors are elected on a rotating basis each year. The purpose of staggering
the terms of members of a board of directors is to promote stability and
continuity within the board of directors. However, staggering the terms of
directors also has the effect of decreasing the number of directors that may
otherwise be elected by stockholders or shareholders, as the case

                                        64



may be, in a given year, and, therefore, may have the effect of precluding a
contest for the election of directors or may delay, prevent or make more
difficult changes in control of a corporation.


                                            

CARDINAL HEALTH                                SYNCOR

    The OGCL permits, but does not require,        The DGCL permits, but does not require, a
an Ohio corporation to provide in its          Delaware corporation to provide in the
articles of incorporation or code of           certificate of incorporation or by-laws of
regulations for a classified board of          the corporation for a classified board of
directors. Cardinal Health's code of           directors. Syncor's by-laws divide the Syncor
regulations divides the Cardinal Health board  board of directors into three classes, as
of directors into three classes, as nearly     nearly equal in number as possible, with each
equal in number as possible, with each class   class of directors serving a staggered term
of directors serving a staggered term of       of three years.
three years.

NOMINATION OF DIRECTORS FOR ELECTION

CARDINAL HEALTH                                SYNCOR

    The OGCL provides that only those              Under Syncor's by-laws, a stockholder's
individuals nominated as directors may be      nomination of an individual for election as
elected as directors. Cardinal Health's code   director is timely only if it is received at
of regulations does not specify advance        Syncor's principal executive offices not less
notice requirements for nominating directors.  than 60 days in advance of the annual meeting
                                               of stockholders if the annual meeting of
                                               stockholders is to be held on a day that is
                                               within 30 days preceding the anniversary of
                                               the previous year's annual meeting of
                                               stockholders or 90 days in advance of the
                                               annual meeting of stockholders if the annual
                                               meeting of stockholders is to be held on or
                                               after the anniversary of the previous year's
                                               annual meeting of stockholders, or, with
                                               respect to any other annual meeting of
                                               stockholders, on or before the close of
                                               business on the 15th day following the date
                                               of public disclosure of the date of the
                                               annual meeting of stockholders.

VACANCIES ON THE BOARD OF DIRECTORS

CARDINAL HEALTH                                SYNCOR

    The OGCL provides that vacancies,              The DGCL provides that, unless the
including vacancies resulting from an          certificate of incorporation or by-laws of a
increase in the number of directors, on an     Delaware corporation provide otherwise, the
Ohio corporation's board of directors may be   board of directors of the corporation may
filled by a majority of the remaining          fill any vacancy on the board of directors,
directors of the corporation, unless the       including vacancies resulting from an
governing documents of the corporation         increase in the number of directors. The
provide otherwise. If the remaining directors  Syncor by-laws provide that newly created
constitute less than a quorum of the board of  directorships resulting from any increase in
directors, then the remaining directors may    the number of directors and any vacancies on
fill vacancies by a majority vote. Cardinal    the Syncor board of directors resulting from
Health's code of regulations provides that     death, resignation, disqualification, removal
vacancies on the Cardinal Health board of      or other cause, must be filled by the
directors may be filled by the Cardinal        affirmative vote of a majority of the
Health board of directors until Cardinal       remaining directors then in office, and that
Health shareholders hold a meeting to fill     any director elected in this fashion will
the vacancy. In addition, Cardinal Health      hold office for the remainder of the
shareholders



                                        65




                                            
may elect a director to fill a vacancy         full term of the class of directors in which
(including any vacancy that previously had     the new directorship was created or the
been filled by the directors) at any meeting   vacancy occurred and until the director's
of Cardinal Health shareholders called for     successor is elected and qualified. Decreases
that purpose.                                  in the number of directors constituting the
                                               Syncor board of directors do not shorten the
                                               term of any incumbent director.

REMOVAL OF DIRECTORS

CARDINAL HEALTH                                SYNCOR

    The OGCL provides that directors of an         The DGCL provides that directors of a
Ohio corporation may only be removed for       Delaware Corporation may be removed from
cause by the affirmative vote of the holders   office with or without cause, by the holders
of a majority of the voting power entitling    of a majority of the voting power of all
holders to elect directors in place of those   outstanding voting stock of the corporation,
to be removed, except that, unless all of the  unless the corporation has a classified board
directors or all of the directors of a         of directors or its governing documents
particular class are removed, no individual    provide otherwise. Syncor's by-laws provide
director may be removed if the votes of a      that any director may be removed from office
sufficient number of shares are cast against   with cause by the affirmative vote of the
the director's removal that, if cumulatively   holders of a majority of the then-outstanding
voted at an election of all of the directors,  shares entitled to vote for the election of
or all of the directors of a particular        directors, and that any director may be
class, as the case may be, would be            removed from office without cause by the
sufficient to elect at least one director,     affirmative vote of the holders of 75% of the
unless the governing documents of the          then-outstanding shares entitled to vote for
corporation provide that no director may be    the election of directors.
removed from office or that removal of
directors requires a greater vote than
described above.
    Cardinal Health's code of regulations
provides that all of the directors, all of
the directors of a particular class, or any
individual director may be removed, without
assigning cause, by the affirmative vote of
the holders of not less than 75% of the
Cardinal Health common shares having voting
power with respect to the election of
directors, provided that unless all of the
directors, or all of the directors of a
particular class, are removed, no individual
director will be removed in a case in which
the votes of a sufficient number of shares
are cast against his or her removal which, if
cumulatively voted at an election of all of
the directors, or all of the directors of a
particular class, would be sufficient to
elect at least one director. In addition,
Cardinal Health's code of regulations
provides that any director may be removed by
the Cardinal Health board of directors for
certain causes specified in Section
1701.58(B) of the OGCL (if the director is
found by order of court to be of unsound
mind, if the director is adjudicated a
bankrupt, or if the director fails to meet
any qualifications for office).



                                        66




                                            
PROVISIONS AFFECTING CONTROL SHARE/STOCK ACQUISITIONS AND BUSINESS COMBINATIONS

CARDINAL HEALTH                                SYNCOR

    Chapter 1704 of the Ohio Revised Code          Section 203 of the DGCL provides
prohibits an "interested shareholder" from     generally that any person that acquires 15%
engaging in a wide range of business           or more of a Delaware corporation's voting
combinations (such as mergers and significant  stock (thereby becoming an "interested
asset sales) with an "issuing public           stockholder") may not engage in a wide range
corporation" for three years after the date    of "business combinations" with the
on which a shareholder becomes an interested   corporation for a period of three years
shareholder (share acquisition date), unless   following the date the person became an
the directors of the corporation approved the  interested stockholder, unless (1) the board
transaction or the share purchase by the       of directors of the corporation has approved,
interested shareholder prior to the share      prior to that acquisition date, either the
acquisition date. If the transaction was not   business combination or the transaction that
previously approved, the interested            resulted in the person becoming an interested
shareholder may effect a transaction after     stockholder, (2) upon consummation of the
the three-year period only if the transaction  transaction that resulted in the person
is approved by the affirmative vote of         becoming an interested stockholder, that
two-thirds of the voting power of the          person owns at least 85% of the corporation's
corporation and by the affirmative vote of     voting stock outstanding at the time the
the holders of at least a majority of the      transaction commenced (excluding shares owned
disinterested shares or if the offer meets     by individuals who are directors and also
certain fair price criteria.                   officers and shares owned by employee stock
                                               plans in which participants do not have the
    Chapter 1704 of the Ohio Revised Code      right to determine confidentially whether
restrictions do not apply if an Ohio           shares will be tendered in a tender or
corporation, by action of its shareholders     exchange offer), or (3) the business
holding at least two-thirds of the voting      combination is approved by the board of
power of the corporation, adopts an amendment  directors of the corporation and authorized
to its articles of incorporation specifying    by the affirmative vote (at an annual or
that Chapter 1704 of the Ohio Revised Code     special meeting and not by written consent)
will not be applicable to the corporation.     of at least 66 2/3% of the outstanding voting
Cardinal Health has not adopted this           stock not owned by the interested
amendment.                                     stockholder.
    Cardinal Health's articles of                  These restrictions on interested
incorporation provide that, except as          stockholders do not apply under certain
otherwise provided in Cardinal Health's        circumstances, including, but not limited to,
articles of incorporation or code of           the following (1) if the corporation's
regulations, any action requiring a            original certificate of incorporation
supermajority vote under Ohio law may be       contains a provision expressly electing not
taken by the vote of Cardinal Health           to be governed by Section 203 of the DGCL, or
shareholders entitling them to exercise a      (2) if the corporation, by action of
majority of the voting power of Cardinal       stockholders of the corporation, adopts an
Health, unless the proportion specified by     amendment to the certificate of incorporation
applicable Ohio law cannot be altered by the   or by- laws of the corporation expressly
articles of incorporation or the code of       electing not to be governed by Section 203 of
regulations.                                   the DGCL, with the amendment to be effective
                                               12 months thereafter.
    Under Section 1701.831 of the Ohio
Revised Code, unless the articles of               Although neither Syncor's certificate of
incorporation or code of regulations of an     incorporation nor its by-laws contain a
Ohio corporation otherwise provide, any        provision electing not to be governed by
control share acquisition of an issuing        Section 203 of the DGCL, the Syncor board of
public corporation only can be made with the   directors has taken all necessary action to
prior approval of the shareholders of the      ensure that Section 203 of the DGCL is
corporation. Cardinal Health's articles of     inapplicable to the merger.
incorporation and code of regulations
expressly provide that the provisions of
Section 1701.831 of the Ohio Revised Code
will not apply.



                                        67




                                            
MERGERS, ACQUISITIONS, SHARE/STOCK PURCHASES AND OTHER TRANSACTIONS

CARDINAL HEALTH                                SYNCOR

    The OGCL generally requires approval of        The DGCL requires that the merger or
mergers, dissolution, dispositions of all or   consolidation of a Delaware corporation with
substantially all of an Ohio corporation's     another entity, or the disposition of all or
assets, and majority share acquisitions and    substantially all of a Delaware corporation's
combinations involving issuance of shares      assets, requires the affirmative vote of a
representing one-sixth or more of the voting   majority of the board of directors of the
power of the corporation immediately after     corporation (except in limited circumstances)
the consummation of the transaction (other     and, with limited exceptions and unless the
than so-called "parent-subsidiary" mergers),   certificate of incorporation of the
by two-thirds of the voting power of the       corporation specifies a different percentage,
corporation, unless the articles of            the affirmative vote of a majority of the
incorporation of the corporation specify a     outstanding stock entitled to vote on the
different proportion (not less than a          merger or consolidation.
majority). Cardinal Health's articles of
incorporation provide that the vote of a       Syncor's certificate of incorporation and
majority of the voting power of Cardinal       by-laws do not provide for a different
Health (or majority of each class, if          percentage.
applicable) is required to approve these
actions.

NOTICE OF SHAREHOLDERS/STOCKHOLDERS MEETINGS

CARDINAL HEALTH                                SYNCOR

    The OGCL requires an Ohio corporation to       The DGCL requires that written notice
notify shareholders of the corporation of the  must be given to stockholders of a Delaware
time, place, and purposes of shareholder       corporation of the time, date and place of
meetings at least seven days but no more than  stockholder meetings, as well as the means of
60 days prior to the date of the shareholders  remote communications by which stockholders
meeting, unless the articles of incorporation  of the corporation may be deemed to be
or code of regulations of the corporation      present at the stockholders meeting, and, in
specify a longer period. Upon request of an    the case of special meetings, the purpose of
individual entitled to call a special          the special meeting, in each case, at least
shareholders meeting, the corporation must     ten days but no more than 60 days prior to
give shareholders notice of the special        the date of the special meeting. Syncor's
meeting to be held no less than seven nor      by-laws do not alter these statutory
more than 60 days after receipt of the         provisions.
request. If notice is not given within 15
days of receipt of the request (or shorter or
longer period as the articles of
incorporation or code of regulations of the
corporation specify), the individual calling
the meeting may fix the time for the meeting
and give notice to the other shareholders.
Cardinal Health's code of regulations does
not alter these statutory provisions.

SUBMISSION OF SHAREHOLDER/STOCKHOLDER PROPOSALS

CARDINAL HEALTH                                SYNCOR

    No provision for the submission of             Under Syncor's by-laws, to be timely,
shareholder proposals is made in the OGCL, or  notice of a stockholder's proposal for
in Cardinal Health's articles of               consideration at an annual meeting must be
incorporation or code of regulations.          received at the principal executive offices
                                               of Syncor: (1) not less than 60 days in
                                               advance of the annual meeting if the annual
                                               meeting is to be



                                        68



                                               
                                            
                                               held on a day that is within 30 days
                                               preceding the anniversary of the previous
                                               year's annual meeting or 90 days in advance
                                               of the previous year's annual meeting if the
                                               annual meeting is to be held on or after the
                                               anniversary of the previous year's annual
                                               meeting; and (2) with respect to any other
                                               annual meeting, on or before the close of
                                               business on the 15th day following the date
                                               of public disclosure of the date of the
                                               annual meeting.

SPECIAL MEETING OF SHAREHOLDERS/STOCKHOLDERS

CARDINAL HEALTH                                SYNCOR

    The OGCL provides that holders of at           The DGCL provides that special meetings
least 25% of the outstanding shares of an      of stockholders of a Delaware corporation may
Ohio corporation (unless the code of           be called by the board of directors of the
regulations of the corporation specifies       corporation, or by the individuals that are
another percentage, which may in no case be    authorized by the certificate of
greater than 50%), the directors of the        incorporation or by-laws of the corporation.
corporation by action at a meeting or a        Under Syncor's by-laws, special meetings of
majority of the directors acting without a     the stockholders may be called only by the
meeting, the Chairman of the Board of the      Chairman of the Board, the President or the
corporation, and the President of the          Secretary of Syncor upon the request of the
corporation (or, in case of the President's    Syncor board of directors pursuant to a
death or disability, the Vice President of     resolution approved by a majority of the
the corporation authorized to exercise the     entire Syncor board of directors.
authority of the President) have the
authority to call special meetings of
shareholders. Cardinal Health's code of
regulations expressly provides that special
meetings of Cardinal Health shareholders may
be called by the Chairman of the Board, the
President, a majority of directors acting
with or without a meeting, or the holders of
shares entitling them to exercise at least
25% of the voting power of Cardinal Health
entitled to be voted at the meeting.



SHAREHOLDER/STOCKHOLDER ACTION WITHOUT A MEETING


                                            

CARDINAL HEALTH                                     SYNCOR

     The OGCL provides that any action that         The DGCL provides that, unless otherwise
may be taken by shareholders of an Ohio        provided in the certificate of incorporation
corporation at a meeting of shareholders may   of a Delaware corporation, any action that
be taken without a meeting with the unanimous  may be taken by stockholders of the
written consent of all shareholders entitled   corporation at a meeting of stockholders may
to vote at the meeting. Cardinal Health's      be taken without a meeting, without prior
code of regulations contains an identical      notice and without a vote with the written
provision.                                     consent of the holders of outstanding stock
                                               having not less than the minimum number of
                                               votes required to take that action at a
                                               meeting of stockholders at which all shares
                                               of stock entitled to vote on the action were
                                               present and voted. Syncor's certificate of
                                               incorporation expressly prohibits the taking
                                               of stockholder actions other than at a duly
                                               called annual or special meeting of Syncor
                                               stockholders.


                                        69


CUMULATIVE VOTING

     Cumulative voting entitles each shareholder or stockholder, as the case may
be, to cast an aggregate number of votes equal to the number of voting shares or
voting stock, as the case may be, held, multiplied by the number of directors to
be elected. Each shareholder or stockholder, as the case may be, may cast all of
his, her or its votes for one nominee or distribute them among two or more
nominees. The candidates (up to the number of directors to be elected) receiving
the highest number of votes are elected.


                                            

CARDINAL HEALTH                                SYNCOR

     The OGCL provides that each shareholder       While the DGCL allows the certificate of
of an Ohio corporation has the right to vote   incorporation of a Delaware corporation to
cumulatively in the election of directors if   provide for cumulative voting, Syncor's
certain notice requirements are satisfied,     certificate of incorporation does not contain
unless the articles of incorporation of a      this provision.
corporation are amended to eliminate
cumulative voting for directors following
their initial filing with the Ohio Secretary
of State. Cardinal Health's articles of
incorporation have not been amended to
eliminate the rights of shareholders to vote
cumulatively in the election of directors.



VOTING RIGHTS


                                            

CARDINAL HEALTH                                SYNCOR

     Under the OGCL, except to the extent          Under the DGCL, the voting rights of
that the express terms of the shares of any    classes of stock of a Delaware corporation
class as an Ohio corporation provide           generally are set forth in the certificate of
otherwise, each outstanding share, regardless  incorporation or resolutions of the
of class, entitles the shareholder to one      corporation providing for the issuance of the
vote on each matter properly submitted to      class of stock. Under Syncor's certificate of
shareholders of the corporation for their      incorporation and by-laws, each share of
vote. Cardinal Health's articles of            Syncor common stock entitles its holder to
incorporation expressly provide that each      one vote. Syncor does not have any other
Cardinal Health common share entitles its      classes of stock.
holder to one vote and each Cardinal Health
Class B common share entitles its holder to
one-fifth of one vote. In specified
situations, nonvoting preferred shares may
have voting rights.



SHAREHOLDER/STOCKHOLDER CLASS VOTING RIGHTS


                                             

CARDINAL HEALTH                                 SYNCOR

     The OGCL provides that holders of a            The DGCL requires voting by separate
particular class of shares of an Ohio           classes of stock of a Delaware corporation
corporation are entitled to vote as a           only with respect to amendments to the
separate class if the rights of that class      corporation's certificate of incorporation
are affected in certain respects by mergers,    that adversely affect the holders of those
consolidations, or amendments to the articles   classes of stock or increase or decrease the
of incorporation.                               aggregate number of authorized shares or the
                                                par value of the shares of stock of any of
    Cardinal Health's articles of               those classes.
incorporation permit holders of Cardinal
Health Class B common shares to vote as a           Syncor only has one class of stock.
separate class on any amendment to Cardinal
Health's articles of incorporation that


                                        70


                                              
alters Cardinal Health Class B common
shares' voting rights; on the issuance in
the aggregate by Cardinal Health of
additional Cardinal Health Class B common
shares in excess of the number of Cardinal
Health Class B common shares held by
Chemical Equity Associates and its
affiliates or issuable pursuant to the
provisions of Cardinal Health's articles of
incorporation governing the conversion of
Cardinal Health common shares and Cardinal
Health Class B common shares; and on any
amendment, repeal, or modification of
Cardinal Health's articles of incorporation
that adversely affects the powers,
preferences, or special rights of the
holders of Cardinal Health Class B common
shares.


RIGHTS OF PREFERRED AND SPECIAL SHAREHOLDERS/STOCKHOLDERS


                                            

CARDINAL HEALTH                                SYNCOR

     Cardinal Health's articles of                 Under the Syncor certificate of
incorporation authorize the Cardinal Health    incorporation, there currently is no class of
board of directors to issue up to 500,000      stock authorized other than Syncor common
Cardinal Health nonvoting preferred shares in  stock. The Syncor by-laws authorize the
multiple series, without Cardinal Health       Syncor board of directors to fix the
shareholder approval. Prior to issuance, the   designations and any of the preferences or
Cardinal Health board of directors would       rights of shares of Syncor stock relating to
determine the designations, preferences,       dividends, redemption, dissolution, or any
limitations and relative and other rights of   distribution of assets of Syncor or the
Cardinal Health nonvoting preferred shares.    conversion into shares of any other class of
There are no Cardinal Health nonvoting         Syncor stock, and to fix the number of shares
preferred shares currently outstanding.        of any series of Syncor stock or authorize an
Depending upon the terms of Cardinal Health    increase or decrease in the number of shares
nonvoting preferred shares issued, a new       of Syncor stock of any series.
issuance may dilute the voting rights of
holders of Cardinal Health common shares and
any holders of Cardinal Health nonvoting
preferred shares with preferences and rights
superior to the rights of holders of Cardinal
Health common shares and any previously
issued Cardinal Health nonvoting preferred
shares. The authorized Cardinal Health
nonvoting preferred shares also may have
possible antitakeover effects, because
Cardinal Health could use the Cardinal Health
nonvoting preferred shares in the adoption of
a shareholder rights plan or other defensive
measure.


DIVIDENDS


                                            

CARDINAL HEALTH                                SYNCOR

     The OGCL provides that dividends may be       The DGCL provides that dividends may be
paid in cash, property or shares of an Ohio    paid in cash, property or shares of a
corporation's capital stock.                   Delaware corporation's capital stock, and
                                               that the corporation may pay dividends out of
                                               any surplus, and, if it has no surplus,


                                        71



                                            
    The OGCL provides that an Ohio             out of any net profits for the fiscal year in
corporation may pay dividends out of surplus   which the dividend was declared or for the
in certain circumstances and must notify the   preceding fiscal year (provided that the
shareholders of the corporation if a dividend  payment will not reduce capital below the
is paid out of capital surplus.                amount of capital represented by all classes
                                               of stock having a preference upon the
                                               distribution of assets).

RIGHTS OF DISSENTING SHAREHOLDERS/STOCKHOLDERS

CARDINAL HEALTH                                SYNCOR

     Under the OGCL, dissenting shareholders       The DGCL provides that appraisal rights
are entitled to appraisal rights in            are available to dissenting stockholders of a
connection with the lease, sale, exchange,     Delaware corporation in connection with
transfer or other disposition of all or        certain mergers or consolidations. However,
substantially all of the assets of an Ohio     unless the corporation's certificate of
corporation and in connection with certain     incorporation provides otherwise, the DGCL
amendments to the corporation's articles of    does not provide for appraisal rights (1) if
incorporation. Shareholders of an Ohio         the stock of the corporation is listed on a
corporation being merged into or consolidated  national securities exchange or an
with another corporation also are entitled to  interdealer quotations system or held of
appraisal rights. In addition, shareholders    record by more than 2,000 stockholders (as
of an acquiring corporation are entitled to    long as the stockholders receive in the
appraisal rights in any merger, combination    merger stock of the surviving corporation or
or majority share acquisition in which those   of any other corporation the stock of which
shareholders are entitled to voting rights.    is listed on a national securities exchange
The OGCL provides shareholders of an           or an interdealer quotations system or held
acquiring corporation with voting rights if    of record by more than 2,000 stockholders) or
the acquisition (a majority share              (2) if the corporation is the surviving
acquisition) involves the transfer of shares   corporation and no vote of its stockholders
of the acquiring corporation entitling the     is required for the merger. Syncor's
recipients of those shares to exercise         certificate of incorporation does not provide
one-sixth or more of the voting power of the   otherwise. The DGCL does not provide
acquiring corporation immediately after the    appraisal rights to stockholders that dissent
consummation of the transaction.               from the sale of all or substantially all of
                                               the corporation's assets or an amendment to
    The OGCL provides that a shareholder of    the certificate of incorporation of the
an Ohio corporation's written demand must be   corporation, although the certificate of
delivered to the corporation not later than    incorporation may so provide. Syncor's
ten days after the taking of the vote on the   certificate of incorporation does not provide
matter giving rise to appraisal rights.        for these rights.

RIGHTS AGREEMENT

CARDINAL HEALTH                                SYNCOR

     Cardinal Health does not have a rights        On September 28, 1999, the Syncor board
plan or comparable arrangement in place.       of directors declared a dividend distribution
                                               of one right for each outstanding share of
                                               common stock pursuant to the rights
                                               agreement. The dividend is payable to holders
                                               of record of Syncor common stock at the close
                                               of business on October 8, 1999. Each right
                                               entitles the registered holder to purchase
                                               from Syncor one share of Syncor common stock
                                               at a price of $180 per share, which Syncor
                                               refers to as the purchase price. Currently,
                                               the rights are attached to all Syncor


                                        72



                                               
                                            
                                               common stock certificates, and no separate
                                               rights certificates have been distributed.
                                               Subject to certain exceptions, the rights
                                               will separate from the Syncor common stock
                                               and a "distribution date" will occur upon the
                                               earlier of (1) ten business days following a
                                               public announcement that a person or group of
                                               affiliated or associated persons, which
                                               Syncor refers to as an acquiring person, has
                                               acquired, or obtained the right to acquire,
                                               beneficial ownership of 15% or more of the
                                               outstanding Syncor shares other than as a
                                               result of repurchases of Syncor common stock
                                               by Syncor or certain purchases by
                                               institutional or certain other similar Syncor
                                               stockholders, so long as they do not own 20%
                                               or more of the outstanding Syncor shares or
                                               following the date a person has entered into
                                               an agreement or arrangement with Syncor
                                               providing for an "acquisition transaction,"
                                               which Syncor refers to as the stock
                                               acquisition date or (2) ten business days
                                               following the commencement of a tender offer
                                               or exchange offer that would result in a
                                               person or group becoming an acquiring person.
                                               An "acquisition transaction" is defined in
                                               the rights agreement as (1) a merger,
                                               consolidation or similar transaction
                                               involving Syncor as a result of which Syncor
                                               stockholders will own less than 50% of the
                                               outstanding Syncor shares, or (2) a purchase
                                               or other acquisition of all or substantially
                                               all of the assets of Syncor. Until the
                                               distribution date,

                                               - the rights will be evidenced by the Syncor
                                               stock certificates and will be transferred
                                                 with and only with the Syncor stock
                                                 certificates,
                                               - new Syncor stock certificates issued after
                                               the record date or new issuances will contain
                                                 a notation incorporating the rights
                                                 agreement by reference, and

                                               - the surrender for transfer of any
                                               outstanding Syncor stock certificates will
                                                 also constitute the transfer of the rights
                                                 associated with the Syncor common stock
                                                 represented by the Syncor certificate.

                                               The rights are not exercisable until the
                                               distribution date and will expire at the
                                               close of business on September 28, 2009,
                                               unless earlier redeemed or extended by Syncor
                                               as described below. As soon as practicable
                                               after the distribution date, rights
                                               certificates will be mailed to holders of
                                               record of Syncor common stock as of the close
                                               of business on the distribution date, and,
                                               thereafter, the separate rights certificates
                                               alone will represent the rights.



                                        73



                                               
                                            
                                               Syncor shares issued after the distribution
                                               date will be issued with rights if those
                                               Syncor shares are issued pursuant to the
                                               exercise of Syncor options or under an
                                               employee benefit plan, or upon the conversion
                                               of securities issued after adoption of the
                                               rights agreement. Except as otherwise
                                               determined by the Syncor board of directors,
                                               no other Syncor shares issued after the
                                               distribution date will be issued with rights.

                                               In the event that a person becomes an
                                               acquiring person, except pursuant to an offer
                                               for all outstanding Syncor shares at a price
                                               determined by a majority of the Syncor
                                               independent directors, after receiving advice
                                               from one or more investment banking firms, to
                                               be adequate and otherwise in the best
                                               interests of Syncor and Syncor stockholders,
                                               each holder of a right will, thereafter, have
                                               the right to receive, upon exercise, Syncor
                                               common stock (or, in certain circumstances,
                                               cash, property or other securities of
                                               Syncor), having a value equal to two times
                                               the "exercise price" of the right. The
                                               exercise price is the purchase price times
                                               the number of Syncor shares associated with
                                               each right (initially, one Syncor share).
                                               Notwithstanding any of the foregoing,
                                               following the occurrence of the event set
                                               forth in this paragraph, all rights that are,
                                               or (under certain circumstances specified in
                                               the rights agreement) were, beneficially
                                               owned by any acquiring person will be null
                                               and void. However, rights are not exercisable
                                               following the occurrence of the event set
                                               forth above until the time as the rights are
                                               no longer redeemable by Syncor as set forth
                                               below.

                                               For example, at an exercise price of $180 per
                                               right, each right not owned by an acquiring
                                               person (or by certain related parties)
                                               following the event set forth in the
                                               preceding paragraph would entitle its holder
                                               to purchase $360 worth of Syncor common stock
                                               (or other consideration, as noted above).
                                               Assuming that Syncor common stock had a per
                                               share value of $40 at that time, the holder
                                               of each valid right would be entitled to
                                               purchase nine Syncor shares for $180.


                                               In the event that, following the stock
                                               acquisition date, (1) Syncor engages in a
                                               merger or other business combination
                                               transaction in which Syncor is not the
                                               surviving corporation, (2) Syncor engages in
                                               a merger or other business combination
                                               transaction in which Syncor is the surviving
                                               corporation and Syncor common stock is
                                               changed or exchanged, or (3) 50% or more of
                                               Syncor's assets, cash flow or earning power
                                               is sold or transferred, each holder of a
                                               right (except



                                        74



                                               
                                            
                                               rights that previously have been voided as
                                               set forth above) will thereafter have the
                                               right to receive, upon exercise of the right,
                                               common stock of the acquiring company having
                                               a value equal to two times the exercise price
                                               of the right. The events set forth in this
                                               paragraph and in the second preceding
                                               paragraph are referred to as the "triggering
                                               events."

                                               Notwithstanding the foregoing paragraph, for
                                               180 days, which we refer to as the special
                                               period, following a change in control of the
                                               Syncor board of directors that has not been
                                               approved by the Syncor board of directors,
                                               occurring within nine months of announcement
                                               of an unsolicited third-party acquisition or
                                               business combination proposal or of a third
                                               party's intent or proposal otherwise to
                                               become an acquiring person, the new Syncor
                                               directors are entitled to redeem the rights
                                               (assuming the rights would have otherwise
                                               been redeemable), including to facilitate an
                                               acquisition or business combination
                                               transaction involving Syncor, but only

                                                 - if they have followed certain prescribed
                                                   procedures, or
                                                 - if the procedures are not followed, and
                                                 if their decision regarding redemption and
                                                   any acquisition or business combination
                                                   is challenged as a breach of fiduciary
                                                   duty of care or loyalty, the directors
                                                   (solely for purposes of the effectiveness
                                                   of the redemption decision) are able to
                                                   establish the entire fairness of the
                                                   redemption or transaction.

                                               Until a right is exercised, the holder of the
                                               right will have no rights as a Syncor
                                               stockholder, including, without limitation,
                                               the right to vote or to receive dividends
                                               simply because he or she is a rights holder.
                                               While the distribution of the rights will not
                                               be taxable to Syncor stockholders or to
                                               Syncor, Syncor stockholders may, depending
                                               upon the circumstances, recognize taxable
                                               income in the event that the rights become
                                               exercisable for Syncor common stock (or other
                                               consideration) or for common stock of the
                                               acquiring company or in the event of the
                                               redemption of the rights as set forth above.

                                               In connection with the execution of the
                                               merger agreement, Syncor and the rights agent
                                               executed an amendment to the rights agreement
                                               so as to provide that neither Cardinal Health
                                               nor Mudhen Merger Corp. will become an
                                               acquiring person and that no stock
                                               acquisition date, distribution date, or
                                               triggering



                                        75




                                            
                                               event will occur as a result of
                                               the completion of the merger or any other
                                               transaction contemplated by the merger
                                               agreement. See "The Merger Agreement --
                                               Syncor Rights Agreement Amendment."

                                               The rights are designed to protect Syncor
                                               stockholders in the event of unsolicited
                                               offers or attempts to acquire Syncor,
                                               including offers that do not treat all Syncor
                                               stockholders equally, acquisitions in the
                                               open market of Syncor shares constituting
                                               control without offering fair value to all
                                               Syncor stockholders, and other coercive or
                                               unfair takeover tactics that could impair the
                                               Syncor board of directors' ability to fully
                                               represent Syncor stockholders' interests.





                                            
SHAREHOLDER/STOCKHOLDER PREEMPTIVE RIGHTS

CARDINAL HEALTH                                SYNCOR

    The OGCL provides that the shareholders        The DGCL provides that no stockholder of
of an Ohio corporation do not have a           a Delaware corporation will have any
preemptive right to acquire the corporation's  preemptive rights to purchase additional
unissued shares, except to the extent the      securities of the corporation, unless the
articles of incorporation of the corporation   certificate of incorporation of the
permit. Cardinal Health's articles of          corporation expressly grants these rights.
incorporation expressly eliminate any          Syncor's certificate of incorporation does
preemptive rights.                             not provide for preemptive rights.





                                            
INSPECTION OF SHAREHOLDER/STOCKHOLDER LISTS

CARDINAL HEALTH                                SYNCOR

    Under the OGCL, shareholders of an Ohio        The DGCL provides any stockholder of a
corporation have the right, upon written       Delaware corporation the right to inspect for
demand stating the purpose, to examine, at     any proper purpose the corporation's stock
any reasonable time and for any reasonable     ledger, a list of the corporation's
and proper purpose, the articles of            stockholders, and the corporation's books and
incorporation of the corporation, the          other records, and to make copies or extracts
corporation's books and records of account,    of the stock ledger, the list of the
the corporation's minutes, the corporation's   corporation's stockholders, and the
records of shareholders, and the               corporation's books and other records. A
corporation's voting trust agreements, if      "proper purpose" means a purpose reasonably
any, on file with the corporation, and to      related to the person's interest as a
make copies of these items. Cardinal Health's  stockholder. Syncor's by-laws further provide
code of regulations authorizes the Cardinal    that, at least ten days before each meeting
Health board of directors to make reasonable   of stockholders, the list of Syncor
rules and regulations prescribing under what   stockholders will be open to the examination
conditions the books, records, accounts, and   of any Syncor stockholder, for any purpose
documents of Cardinal Health will be open to   germane to the meeting, during ordinary
inspection by Cardinal Health shareholders.    business hours, either at a place within the
                                               city, town or village where the meeting is to
    The OGCL requires that, upon the request   be held, or at the place where the meeting is
of a shareholder of an Ohio corporation at     to be held. The stockholders list must be
any meeting of shareholders, the corporation   produced and kept at the time and place of
must produce at the meeting an alphabetically  the meeting during the whole time of the
arranged list, or classified lists, of the     meeting, and may be inspected by any
shareholders of record as of the applicable    stockholder that is present.
record date that are entitled to vote.



                                        76




                                            
LIABILITY OF DIRECTORS AND OFFICERS

CARDINAL HEALTH                                SYNCOR

    The OGCL provides no provision limiting        The DGCL allows a Delaware corporation to
the liability of officers, employees or        include in the certificate of incorporation
agents of an Ohio corporation Cardinal         of the corporation, and the Syncor
Health's articles of incorporation also do     certificate of incorporation contains, a
not contain that type of provision. However,   provision eliminating the liability of a
under the OGCL, a director of an Ohio          director for monetary damages for a breach of
corporation is not liable for monetary         his or her fiduciary duties as a director,
damages, unless it is proved by clear and      except liability:
convincing evidence that the director's
action or failure to act was undertaken with     - for any breach of a director's duty of
deliberate intent to cause injury to the       loyalty to the corporation or its
corporation or with reckless disregard for         stockholders,
the best interests of the corporation.
                                                 - for acts or omissions not in good faith
                                               or that involve intentional misconduct or
                                                   knowing violation of law,
                                                 - under Section 174 of the DGCL (which
                                               generally deals with unlawful payments of
                                                   dividends, stock repurchases and
                                                   redemptions), and
                                                 - for any transaction from which the
                                               director derived an improper personal
                                                   benefit.




                                            
DUTIES OF DIRECTORS

CARDINAL HEALTH                                SYNCOR

    The OGCL requires a director of an Ohio        The DGCL contains no express provisions
corporation to perform his or her duties as a  relating to standards governing a director's
director:                                      performance of his or her duties.
  - in good faith,
  - with the care an ordinarily prudent
    person in a like position would exercise
    under similar circumstances, and
  - in a manner the director reasonably
    believes to be in or not opposed to the
    best interests of the corporation.
    The OGCL provides that a director will
not be found to have violated his or her
duties as a director, unless it is proved by
clear and convincing evidence that the
director has not acted in good faith, in a
manner the director reasonably believes to be
in or not opposed to the best interests of
the corporation, or with the care that an
ordinarily prudent person in a like position
would use under similar circumstances. This
standard applies in any action brought
against a


                                        77

 
                                            
Cardinal Health director, including actions
involving or affecting a change or potential
change in control of Cardinal Health, a
termination or potential termination of the
director's service to Cardinal Health as a
director or the director's service in any
other position or relationship with Cardinal
Health.





                                            
INDEMNIFICATION OF DIRECTORS AND OFFICERS

CARDINAL HEALTH                                SYNCOR

    The OGCL provides that an Ohio                 The DGCL permits a Delaware corporation
corporation may indemnify directors,           to indemnify directors, officers, employees
officers, employees and agents of a            and agents of the corporation under certain
corporation within prescribed limits, and      circumstances, and mandates indemnification
must indemnify them under certain              under certain circumstances. The DGCL permits
circumstances. The OGCL does not authorize     the corporation to indemnify an officer,
payment by a corporation of judgments against  director, employee or agent of the
a director, officer, employee or agent of a    corporation for fines, judgments, or
corporation after a finding of negligence or   settlements, as well as for expenses in the
misconduct in a derivative suit absent a       context of actions other than derivative
court order. Indemnification is required,      actions, if the individual acted in good
however, to the extent the individual          faith and in a manner the individual
succeeds on the merits. In all other cases,    reasonably believed to be in or not opposed
if it is determined that a director, officer,  to the best interests of the corporation, or,
employee or agent of the corporation acted in  in the case of a criminal proceeding, if the
good faith and in a manner the individual      individual had no reasonable cause to believe
reasonably believed to be in or not opposed    that the individual's conduct was unlawful.
to the best interests of the corporation, or,  Indemnification against expenses incurred by
with respect to a criminal proceeding, he or   a director, officer, employee or agent of the
she had no reasonable cause to believe that    corporation in connection with a proceeding
his or her conduct was unlawful,               against the individual for actions in his or
indemnification is discretionary, except as    her capacity as a director, officer, employee
otherwise provided by a corporation's          or agent of the corporation, is mandatory to
articles of incorporation, or code of          the extent that the individual has been
regulations, or by contract, and except with   successful on the merits. If a director,
respect to the advancement of expenses to      officer, employee or agent of the corporation
directors (as discussed in the next            is determined to be liable to the
paragraph). The statutory right to             corporation, indemnification for expenses is
indemnification is not exclusive in Ohio, and  not allowable, subject to limited exceptions
Ohio corporations may, among other things,     when a court deems the award of expenses
purchase insurance to indemnify these          appropriate. The DGCL grants express power to
individuals.                                   the corporation to purchase liability
                                               insurance for its directors, officers,
    The OGCL provides that a director (but     employees and agents of the corporation,
not an officer, employee or agent) of an Ohio  regardless of whether the individual is
corporation is entitled to mandatory           otherwise eligible for indemnification by the
advancement of expenses, including attorneys'  corporation. Advancement of expenses is
fees, incurred in defending any action,        permitted, but an individual receiving
including derivative actions, brought against  advances must repay those expenses if it is
the director, provided that the director       ultimately determined that he or she is not
agrees to cooperate with the corporation       entitled to indemnification.
concerning the matter and to repay the amount
advanced if it is proven by clear and              Syncor's by-laws provide for
convincing evidence that the director's act    indemnification of Syncor's directors to the
or failure to act was done with deliberate     fullest extent possible against all liability
intent to cause injury to the corporation or   and loss suffered and expenses (including
with reckless disregard for the corporation's  attorneys' fees), judgments, fines and
best interests.                                amounts paid in settlement, as well as for
                                               expenses incurred to the extent the director
    Cardinal Health's code of regulations      is successful on the merits and for
provides for indemnification by Cardinal       advancement of expenses.
Health to the fullest extent expressly
permitted by the OGCL of any



                                        78


                                            
individual made or threatened to be made a
party to any action, suit or proceeding by
reason of the fact that the individual is or
was a director, officer, employee or agent of
Cardinal Health or of any other corporation
for which the individual was serving as a
director, officer, employee or agent at the
request of Cardinal Health.





                                            
AMENDMENT OF CHARTER DOCUMENTS

CARDINAL HEALTH                                SYNCOR

    To amend an Ohio corporation's articles        The DGCL requires approval by holders of
of incorporation, the OGCL requires the        a majority of the voting power of a Delaware
approval of shareholders of the corporation    corporation, and of a majority of the
holding two-thirds of the voting power of the  outstanding stock of each class entitled to
corporation or, in cases in which class        vote to amend the certificate of the
voting is required, of shareholders of the     corporation as a class, in order to amend the
corporation holding two-thirds of the voting   certificate of incorporation of the
power of that class, unless otherwise          corporation.
specified in the corporation's articles of
incorporation. Cardinal Health's articles of       Syncor's certificate of incorporation
incorporation specify that the holders of a    provides that the affirmative vote of the
majority of the voting power of Cardinal       holders of at least 75% of the voting power
Health, or, when appropriate, any class of     of the outstanding stock of each class,
Cardinal Health shareholders, may amend        voting together as a single class, is
Cardinal Health's articles of incorporation.   required to amend the article of Syncor's
                                               certificate of incorporation relating to
  The OGCL also provides that any amendment    amendment of Syncor's certificate of
to the articles of incorporation of the        incorporation or by-laws.
corporation whose directors are classified
that would change or eliminate classification
of directors may be adopted by the
shareholders only at a meeting expressly held
for that purpose, by the vote described above
and by the affirmative vote of at least a
majority of disinterested shares voted on the
proposal.




                                            
AMENDMENT AND REPEAL OF CODE OF REGULATIONS AND BY-LAWS

               CARDINAL HEALTH                                    SYNCOR

    The OGCL provides that only shareholders       Under the DGCL, holders of a majority of
of an Ohio corporation have the power to       the voting power of a Delaware corporation
amend and repeal the corporation's code of     and, when provided in the certificate of
regulations.                                   incorporation of the corporation, the
                                               directors of the corporation, have the power
    Cardinal Health's code of regulations      to adopt, amend and repeal the by-laws of a
requires that these amendments be approved by  corporation.
the affirmative vote of the holders of a
majority of the voting power entitled to vote      As permitted by the DGCL, Syncor's
on the matter, except that the affirmative     certificate of incorporation gives Syncor's
vote of the holders of not less than 75% of    directors the power to make, alter, amend, or
the Cardinal Health common shares having       repeal the Syncor by-laws, and provides that
voting power is required to amend, change or   any by-laws made by Syncor's directors under
adopt any provision inconsistent with, or      the powers conferred thereby may be altered,
repeal provisions of Cardinal Health's code    amended or repealed by Syncor's directors or
of regulations regarding the                   Syncor



                                        79




                                            
number and classification of Cardinal          stockholders, provided that the
Health directors, the term of office of        sections of Syncor's by-laws relating to
Cardinal Health directors, the removal of      annual and special meetings, confidential
Cardinal Health directors, or amendments to    voting, the terms, appointment and
Cardinal Health's code of regulations.         removal of directors, and amendment of the
                                               by-laws, only may be altered, amended or
                                               repealed by the affirmative vote of the
                                               holders of 75% of the then-outstanding
   The OGCL also provides that any amendment   voting stock, voting as a single class.
to the code of regulations of a corporation
whose directors are classified that would          Syncor's by-laws provide that, except as
change or eliminate the classification of      otherwise provided in Syncor's certificate of
directors may be adopted by the shareholders   incorporation or under applicable law,
only at a meeting expressly held for that      Syncor's by-laws may be made, altered or
purpose, by the vote described above and by    repealed by either holders of a majority of
the affirmative vote of at least a majority    the stock then entitled to vote present in
of disinterested shares voted on the           person or by proxy at any annual or special
proposal.                                      meeting of Syncor stockholders at which a
                                               quorum is present, or by the affirmative vote
                                               of a majority of the Syncor board of
                                               directors.



                                        80



                OTHER ACTION TO BE TAKEN AT THE SPECIAL MEETING

SYNCOR ADJOURNMENT PROPOSAL

     Syncor is submitting a proposal to Syncor stockholders to authorize the
named proxies to vote in favor of the adjournment proposal at the special
meeting of stockholders in the event that there are not sufficient votes to
approve the merger agreement proposal at the time of the special meeting. Even
though a quorum may be present at the special meeting, it is possible that
Syncor may not have received sufficient votes to approve the merger agreement
proposal. In that event, we would need to adjourn the special meeting in order
to solicit additional proxies.


     To allow the proxies that have been received by Syncor at the time of the
special meeting to be voted for the adjournment, if necessary, Syncor has
submitted the question of adjournment under those circumstances, and only under
those circumstances, to Syncor stockholders for their consideration. Approval of
the adjournment proposal requires the affirmative vote of the holders of a
majority of the voting power of Syncor shares present in person or represented
by proxy at the special meeting.


     The Syncor board of directors recommends that the Syncor stockholders vote
their proxies "FOR" the adjournment proposal so that their proxies may be used
for that purpose, should it become necessary. Properly executed proxies will be
voted "FOR" the adjournment proposal, unless otherwise noted on the proxies. If
it is necessary to adjourn the special meeting, no notice of the time and place
of the adjourned special meeting is required to be given to Syncor stockholders
other than an announcement of the time and place at the special meeting, unless
the adjournment is for more than 30 days, or, if, after the adjournment, a new
record date is set. The adjournment proposal relates only to an adjournment of
the special meeting occurring for purposes of soliciting additional proxies for
approval of the merger agreement proposal in the event that there are
insufficient votes to approve the merger agreement proposal at the special
meeting. Any other adjournment of the special meeting (e.g., an adjournment
required because of the absence of a quorum) would be voted upon pursuant to the
discretionary authority granted by the proxy.

     The Syncor board of directors retains full authority to postpone the
special meeting prior to the special meeting being convened, without the consent
of any Syncor stockholder.

     THE SYNCOR BOARD OF DIRECTORS RECOMMENDS THAT YOU VOTE "FOR" THE
ADJOURNMENT PROPOSAL.


     As of the date of this document, the Syncor board of directors does not
know of any matters that will be presented for consideration at the special
meeting other than as described in this document. If any other matters do
properly come before the special meeting or any adjournments or postponements of
the special meeting and are voted upon, the enclosed proxy will be deemed to
confer discretionary authority on the individuals named as proxies to vote
Syncor shares represented by those proxies as to any of those matters.


                                 LEGAL MATTERS

     The validity of Cardinal Health common shares to be issued in the merger
will be passed upon for Cardinal Health by Wachtell, Lipton, Rosen & Katz,
special counsel to Cardinal Health.

     Skadden, Arps, Slate, Meagher & Flom LLP, special counsel to Syncor, will
render the opinion referred to under "Material U.S. Federal Income Tax
Consequences."

                         INDEPENDENT PUBLIC ACCOUNTANTS


     The consolidated financial statements and the related consolidated
financial statement schedule of Cardinal Health and its subsidiaries as of June
30, 2001 and 2000, and for each of the three years in the period ended June 30,
2001, have been incorporated in this document by reference from Cardinal
Health's annual report on Form 10-K for the fiscal year ended June 30, 2001.
Such consolidated financial statements and schedule as of and for the fiscal
years ended June 30, 2001 and 2000, except for the financial statements of
Bindley Western Industries, Inc. and its subsidiaries ("Bindley") as of and for
the year ended December 31,


                                        81


1999, have been audited by Arthur Andersen LLP as stated in their report which
is incorporated herein by reference from the Cardinal Health Form 10-K for the
fiscal year ended June 30, 2001. The consolidated statements of earnings,
shareholders' equity and cash flows and the related consolidated financial
statement schedule of Cardinal Health and its subsidiaries for the year ended
June 30, 1999, prior to restatement for the 2001 pooling of interests with
Bindley, which are not presented separately herein, and except for the financial
statements of Bindley, Allegiance Corporation and its subsidiaries
("Allegiance") and R.P. Scherer Corporation ("Scherer"), have been audited by
Deloitte & Touche LLP as stated in their report which is incorporated herein by
reference from the Cardinal Health Form 10-K for the fiscal year ended June 30,
2001. The separate financial statements of Scherer for the year ended June 30,
1999, which are not presented herein, have been audited by Arthur Andersen LLP,
as stated in their reports which are incorporated herein by reference from
Cardinal Health's Form 10-K for the fiscal year ended June 30, 2001. Arthur
Andersen LLP audited the combination of the consolidated financial statements
and related consolidated financial statement schedule for the year ended June
30, 1999, after restatement for the 2001 Bindley pooling of interests.


     The financial statements of Bindley as of December 31, 1999 and for each of
the two years in the period ended December 31, 1999 and the financial statements
of Allegiance for the year ended June 30, 1999, such financial statements not
being included or incorporated by reference in this document, have been audited
by PricewaterhouseCoopers LLP, independent accountants, as stated in their
reports appearing in Cardinal Health's Annual Report on Form 10-K for the fiscal
year ended June 30, 2001, which is incorporated by reference in this document.



     As previously disclosed in Cardinal Health's 8-K filed on May 9, 2002,
Cardinal Health dismissed Arthur Andersen LLP as its independent public
accountants and announced that Cardinal Health had appointed Ernst & Young LLP
to replace Arthur Andersen LLP as its independent public accountants. On July 3,
2002, Arthur Andersen LLP publicly announced that it has commenced the closure
of its Columbus, Ohio office. Solely due to the closure of Arthur Andersen LLP's
Columbus office, after reasonable efforts, Cardinal Health has been unable to
obtain Arthur Andersen LLP's written consent to include Arthur Andersen LLP's
reports on Cardinal Health's or Scherer's financial statements which are
incorporated by reference into this document. Under these circumstances, this
document is permitted to be filed without a written consent from Arthur Andersen
LLP in accordance with Rule 437a of the Securities Act of 1933. The absence of
this consent may limit recovery against Arthur Andersen LLP under Section 11 of
the Securities Act. In addition, as a practical matter, the ability of Arthur
Andersen LLP to satisfy any claims (including claims arising from Andersen's
provision of auditing and other services to Cardinal Health and Arthur Andersen
LLP's other clients) may be limited due to recent events regarding Arthur
Andersen LLP, including without limitation its conviction on federal obstruction
of justice charges arising from the federal government's investigation of Enron
Corp.



     The consolidated financial statements of Syncor International Corporation
as of December 31, 2001 and 2000, and for each of the three years in the period
ended December 31, 2001, have been incorporated by reference in this document in
reliance on the report by KPMG LLP, independent accountants.


                                 OTHER MATTERS

     Representatives of KPMG LLP are expected to be present at the special
meeting with the opportunity to make statements if they so desire. These
representatives also are expected to be available to respond to appropriate
questions.

                             STOCKHOLDER PROPOSALS


     The 2003 annual meeting of Syncor stockholders is presently scheduled to be
held in June 2003, but will not be held if the merger is completed. If the 2003
annual meeting of Syncor stockholders is held, stockholder proposals must be
received by Syncor no later than January 13, 2003 in order for the proposal to
be considered timely for inclusion in the 2003 annual meeting proxy materials.
To be included in Syncor's proxy statement, proposals must be proper under law
and must comply with the rules and regulations of the SEC. All stockholder
proposals should be addressed to Mr. Edwin A. Burgos, Secretary of Syncor.


                                        82


                      WHERE YOU CAN FIND MORE INFORMATION


     Cardinal Health will file with the SEC a registration statement under the
Securities Act that registers the distribution to Syncor stockholders of the
Cardinal Health common shares to be issued in connection with the merger. The
registration statement, including the attached exhibits and schedules, will
contain additional relevant information about Cardinal Health and Syncor. The
rules and regulations of the SEC allow us to omit certain information included
in the registration statement from this document.


     In addition, Cardinal Health and Syncor file reports, proxy statements and
other information with the SEC under the Exchange Act. Please call the SEC at
1-800-SEC-0330 for further information on the public reference rooms. You may
read and copy this information at the following locations of the SEC:

                             Public Reference Room
                             450 Fifth Street, N.W.
                                   Room 1024
                             Washington, D.C. 20549

     You also may obtain copies of this information by mail from the Public
Reference Section of the SEC, 450 Fifth Street, N.W., Room 1024, Washington,
D.C. 20549, at prescribed rates. The SEC also maintains an Internet world wide
web site that contains reports, proxy statements and other information about
issuers, like Cardinal Health and Syncor, who file electronically with the SEC.
The address of that site is http://www.sec.gov. You also can inspect reports,
proxy statements and other information about Cardinal Health at the offices of
the New York Stock Exchange, 20 Broad Street, New York, New York 10005.


     The SEC allows Cardinal Health and Syncor to "incorporate by reference"
information in this document. This means that Cardinal Health and Syncor can
disclose important information to you by referring you to another document filed
separately with the SEC. The information incorporated by reference is considered
to be a part of this document, except for any information that is superseded by
information that is included directly in this document.



     This document incorporates by reference the documents listed below that
Cardinal Health and Syncor previously have filed with the SEC. They contain
important information about Cardinal Health and Syncor and their financial
condition.




         CARDINAL HEALTH SEC FILINGS
             (FILE NO. 0-12591)                      DESCRIPTION OR PERIOD/AS OF DATE
         ---------------------------                 --------------------------------
                                            
Annual Report on Form 10-K                     Year ended June 30, 2001

Quarterly Reports on Form 10-Q                 Quarters ended September 30, 2001,
                                               December 31, 2001 and March 31, 2002

Current Reports on Form 8-K                    March 11, 2002 and May 9, 2002

Proxy Statement                                For the Cardinal Health annual meeting of
                                               shareholders held November 7, 2001

Registration Statement on Form 8-A, dated      Description of Cardinal Health common shares
August 19, 1994                                contained therein and any amendment or report
                                               filed for the purpose of updating that
                                               description


                                        83





             SYNCOR SEC FILINGS
            (FILE NO. 000-08640)                     DESCRIPTION OR PERIOD/AS OF DATE
            --------------------                     --------------------------------
                                            
Annual Report on Form 10-K                     Year ended December 31, 2001

Quarterly Report on Form 10-Q                  Quarter ended March 31, 2002 and June 30,
                                               2002

Current Report on Form 8-K                     June 21, 2002

Proxy Statement                                For the Syncor annual meeting of stockholders
                                               held June 17, 2002

Registration Statement on Form 8-A, filed      Description of Syncor shares contained
with the SEC on October 29, 1981               therein and any amendment or report filed for
                                               the purpose of updating that description

Registration Statement on Form 8-A, filed      Description of the rights associated with
with the SEC on October 20, 1999, as amended   Syncor shares contained therein and any
by Form 8-A/A, filed with the SEC on June 19,  amendment or report filed for the purpose of
2002                                           updating that description




     Cardinal Health and Syncor incorporate by reference additional documents
that either Cardinal Health or Syncor may file with the SEC between the date of
this document and the date of the special meeting. These documents include
periodic reports, such as Annual Reports on Form 10-K, Quarterly Reports on Form
10-Q and Current Reports on Form 8-K, as well as proxy statements.



     You can obtain any of the documents incorporated by reference in this
document through Cardinal Health or Syncor, as the case may be, or from the SEC
through the SEC's web site at the address described above. Documents
incorporated by reference are available from Cardinal Health or Syncor, as the
case may be, without charge, excluding any exhibits to those documents, unless
the exhibit is specifically incorporated by reference as an exhibit in this
document. You can obtain documents incorporated by reference in this document by
requesting them in writing or by telephone from the appropriate company at the
following addresses:




              CARDINAL HEALTH:                                    SYNCOR:
                                            
            Cardinal Health, Inc.                    Syncor International Corporation
             7000 Cardinal Place                            6464 Canoga Avenue
             Dublin, Ohio 43017                    Woodland Hills, California 91367-2407
Attention: Vice President-Investor Relations      Attention: Director-Investor Relations
               (614) 757-5000                                 (818) 737-4000



     IF YOU WOULD LIKE TO REQUEST DOCUMENTS, PLEASE DO SO BY SEPTEMBER [  ],
2002 TO RECEIVE THEM BEFORE THE SPECIAL MEETING. If you request any documents
incorporated by reference in this document from us, we will mail them to you by
first class mail, or another equally prompt means, within one business day after
we receive your request. Syncor stockholders that require assistance in changing
or revoking a proxy should contact the solicitation agent Syncor and Cardinal
Health have hired in connection with the special meeting:


                        [MACKENZIE PARTNERS, INC. LOGO]

                               105 Madison Avenue
                            New York, New York 10016
                         (212) 929-5500 (Call Collect)
                      E-mail: proxy@mackenziepartners.com
                                       or
                         CALL TOLL-FREE (800) 322-2885


     WE HAVE AUTHORIZED NO ONE TO GIVE YOU ANY INFORMATION OR TO MAKE ANY
REPRESENTATION ABOUT THE MERGER OR OUR COMPANIES THAT DIFFERS FROM OR ADDS TO
THE INFORMATION CONTAINED IN THIS DOCUMENT OR IN THE DOCUMENTS OUR COMPANIES
HAVE PUBLICLY FILED WITH THE SEC. THEREFORE, IF ANYONE SHOULD GIVE YOU ANY
DIFFERENT OR ADDITIONAL INFORMATION, YOU SHOULD NOT RELY ON IT.


                                        84



     IF YOU LIVE IN A JURISDICTION WHERE IT IS UNLAWFUL TO OFFER TO EXCHANGE OR
SELL, OR TO ASK FOR OFFERS TO EXCHANGE OR BUY, THE SECURITIES OFFERED BY THIS
DOCUMENT, OR TO ASK FOR PROXIES, OR IF YOU ARE A PERSON TO WHOM IT IS UNLAWFUL
TO DIRECT THESE ACTIVITIES, THEN THE OFFER PRESENTED BY THIS DOCUMENT DOES NOT
EXTEND TO YOU.



     THE INFORMATION CONTAINED IN THIS DOCUMENT SPEAKS ONLY AS OF THE DATE
INDICATED ON THE COVER OF THIS DOCUMENT, UNLESS THE INFORMATION SPECIFICALLY
INDICATES THAT ANOTHER DATE APPLIES.



     WITH RESPECT TO THE INFORMATION CONTAINED IN THIS DOCUMENT, CARDINAL HEALTH
HAS SUPPLIED THE INFORMATION CONCERNING CARDINAL HEALTH AND MUDHEN MERGER CORP.,
AND SYNCOR HAS SUPPLIED THE INFORMATION CONCERNING SYNCOR.


                                        85


                                                                         ANNEX A

                          AGREEMENT AND PLAN OF MERGER

                                  BY AND AMONG

                             CARDINAL HEALTH, INC.
                                 ("CARDINAL"),

                              MUDHEN MERGER CORP.
                  a wholly owned direct subsidiary of Cardinal
                                  ("SUBCORP"),

                                      and

                        SYNCOR INTERNATIONAL CORPORATION
                                   ("SYNCOR")

                                 June 14, 2002


                               TABLE OF CONTENTS



                                                                        PAGE
                                                                        ----
                                                                  
PRELIMINARY STATEMENTS................................................   A-1

ARTICLE I.  THE MERGER................................................   A-1
  1.1.    The Merger..................................................   A-1
  1.2.    Effective Time..............................................   A-1
  1.3.    Effects of the Merger.......................................   A-2
  1.4.    Certificate of Incorporation and By-laws....................   A-2
  1.5.    Directors and Officers of the Surviving Corporation.........   A-2
  1.6.    Additional Actions..........................................   A-2

ARTICLE II.  CONVERSION OF SECURITIES.................................   A-2
  2.1.    Conversion of Capital Stock.................................   A-2
  2.2.    Exchange Ratio; Fractional Shares; Adjustments..............   A-3
  2.3.    Exchange of Certificates....................................   A-3
            (a) Exchange Agent........................................   A-3
            (b) Exchange Procedures...................................   A-4
            (c) Distributions with Respect to Unexchanged Shares......   A-4
            (d) No Further Ownership Rights in Syncor Common Stock....   A-5
            (e) Termination of Exchange Fund..........................   A-5
            (f) No Liability..........................................   A-5
            (g) Investment of Exchange Fund...........................   A-5
            (h) Withholding Rights....................................   A-5
  2.4.    Treatment of Stock Options..................................   A-5

ARTICLE III.  REPRESENTATIONS AND WARRANTIES OF CARDINAL AND SUBCORP..   A-6
  3.1.    Organization and Standing...................................   A-6
  3.2.    Corporate Power and Authority...............................   A-7
  3.3.    Capitalization of Cardinal and Subcorp......................   A-7
  3.4.    Conflicts; Consents and Approval............................   A-7
  3.5.    Brokerage and Finder's Fees.................................   A-8
  3.6.    Reorganization..............................................   A-8
  3.7.    Cardinal SEC Documents......................................   A-8
  3.8.    Registration Statement......................................   A-9
  3.9.    Compliance with Law.........................................   A-9
  3.10.   Litigation..................................................   A-9
  3.11.   No Material Adverse Change..................................   A-9
  3.12.   Subcorp's Operations........................................   A-9
  3.13.   Undisclosed Liabilities.....................................  A-10

ARTICLE IV.  REPRESENTATIONS AND WARRANTIES OF SYNCOR.................  A-10
  4.1.    Organization and Standing...................................  A-10
  4.2.    Subsidiaries................................................  A-10
  4.3.    Corporate Power and Authority...............................  A-11
  4.4.    Capitalization of Syncor....................................  A-11
  4.5.    Conflicts; Consents and Approvals...........................  A-11


                                       -i-




                                                                        PAGE
                                                                        ----
                                                                  
  4.6.    Brokerage and Finder's Fees.................................  A-12
  4.7.    Reorganization..............................................  A-12
  4.8.    Syncor SEC Documents........................................  A-12
  4.9.    Registration Statement; Proxy Statement.....................  A-12
  4.10.   Compliance with Law.........................................  A-13
  4.11.   Litigation..................................................  A-13
  4.12.   No Material Adverse Change..................................  A-13
  4.13.   Taxes.......................................................  A-13
  4.14.   Intellectual Property.......................................  A-15
  4.15.   Title to and Condition of Properties........................  A-15
  4.16.   Employee Benefit Plans......................................  A-15
  4.17.   Contracts...................................................  A-18
  4.18.   Labor Matters...............................................  A-19
  4.19.   Undisclosed Liabilities.....................................  A-19
  4.20.   Operation of Syncor's Business; Relationships...............  A-19
  4.21.   Permits; Compliance.........................................  A-19
  4.22.   Environmental Matters.......................................  A-20
  4.23.   Insurance...................................................  A-20
  4.24.   Opinion of Financial Advisor................................  A-20
  4.25.   Board Recommendation; Required Vote.........................  A-20
  4.26.   Section 203 of the DGCL; Rights Agreement...................  A-21

ARTICLE V.  COVENANTS OF THE PARTIES..................................  A-21
  5.1.    Mutual Covenants............................................  A-21
            (a) HSR Act Filings; Reasonable Efforts; Notification.....  A-21
            (b) Tax-Free Treatment....................................  A-23
            (c) Public Announcements..................................  A-23
            (d) Obligations of Cardinal and of Syncor.................  A-23
            (e) Conveyance Taxes......................................  A-23
  5.2.    Covenants of Cardinal.......................................  A-23
            (a) Preparation of Registration Statement.................  A-23
            (b) Conduct of Cardinal's Operations......................  A-24
            (c) Indemnification; Directors' and Officers' Insurance...  A-24
            (d) Subcorp...............................................  A-25
            (e) NYSE Listing..........................................  A-25
            (f) Employees and Employee Benefits.......................  A-25
  5.3.    Covenants of Syncor.........................................  A-26
            (a) Syncor Stockholders Meeting...........................  A-26
            (b) Information for the Registration Statement and
                Preparation of Proxy Statement........................  A-27
            (c) Conduct of Syncor's Operations........................  A-27
            (d) No Solicitation.......................................  A-29
            (e) Affiliates of Syncor..................................  A-31
            (f) Access................................................  A-31
            (g) Subsequent Financial Statements.......................  A-31


                                       -ii-




                                                                        PAGE
                                                                        ----
                                                                  
ARTICLE VI.  CONDITIONS...............................................  A-31
  6.1.    Conditions to the Obligations of Each Party.................  A-31
  6.2.    Conditions to Obligations of Syncor.........................  A-32
  6.3.    Conditions to Obligations of Cardinal and Subcorp...........  A-33

ARTICLE VII.  TERMINATION AND AMENDMENT...............................  A-33
  7.1.    Termination.................................................  A-33
  7.2.    Effect of Termination.......................................  A-34
  7.3.    Amendment...................................................  A-35
  7.4.    Extension; Waiver...........................................  A-35

ARTICLE VIII.  MISCELLANEOUS..........................................  A-35
  8.1.    Survival of Representations and Warranties..................  A-35
  8.2.    Notices.....................................................  A-35
  8.3.    Interpretation..............................................  A-36
  8.4.    Counterparts................................................  A-37
  8.5.    Entire Agreement............................................  A-37
  8.6.    Third-Party Beneficiaries...................................  A-37
  8.7.    Governing Law...............................................  A-37
  8.8.    Consent to Jurisdiction; Venue..............................  A-37
  8.9.    Specific Performance........................................  A-37
  8.10.   Assignment..................................................  A-38
  8.11.   Expenses....................................................  A-38
  8.12.   Severability................................................  A-38


                                      -iii-


                             INDEX OF DEFINED TERMS



                        DEFINED TERM                                  SECTION
                        ------------                                  -------
                                                           
Action......................................................  3.10
Agreement...................................................  Preamble
Antitrust Laws..............................................  5.1(a)(ii)
Applicable Laws.............................................  3.9
BMS.........................................................  4.17
BMS Contract................................................  4.17
Business Combination........................................  7.2
Cardinal....................................................  Preamble
Cardinal Articles...........................................  3.1
Cardinal Code of Regulations................................  3.1
Cardinal Common Shares......................................  3.3(a)
Cardinal Disclosure Schedule................................  3.3(a)
Cardinal Exchange Option....................................  2.4(a)
Cardinal SEC Documents......................................  3.7
Certificate of Merger.......................................  1.2
Certificates................................................  2.2(c)
Closing.....................................................  1.2
Closing Date................................................  1.2
CMI.........................................................  5.3(d)
CMI Business................................................  8.3
CMI Changes.................................................  8.3
Code........................................................  Preliminary Statement C
Commission..................................................  2.4(b)
Competing Transaction.......................................  5.3(d)
Confidentiality Agreement...................................  5.3(d)
Contract....................................................  4.17
Controlled Group Liability..................................  4.16(a)
Costs.......................................................  7.2
DGCL........................................................  1.1
Delaware Secretary of State.................................  1.2
Effective Time..............................................  1.2
Environmental Laws..........................................  4.22
Environmental Permit........................................  4.22
ERISA.......................................................  4.16(a)
ERISA Affiliate.............................................  4.16(a)
ESOP........................................................  4.16(n)
Excess Shares...............................................  2.2(c)
Exchange Act................................................  2.4(c)
Exchange Agent..............................................  2.3(a)
Exchange Fund...............................................  2.3(a)
Exchange Ratio..............................................  2.2(a)
GAAP........................................................  3.7
Governmental Authority......................................  3.4(d)


                                       -iv-




                        DEFINED TERM                                  SECTION
                        ------------                                  -------
                                                           
Hazardous Materials.........................................  4.22
HSR Act.....................................................  3.4(d)
Intellectual Property.......................................  4.14
Limitations.................................................  5.1(a)(iv)
Material Adverse Effect.....................................  8.3
Merger......................................................  Preliminary Statement A
Multiemployer Plan..........................................  4.16(f)
Multiple Employer Plan......................................  4.16(f)
NYSE........................................................  2.2(c)
Plans.......................................................  4.16(a)
Proxy Statement.............................................  3.8
Qualified Plan..............................................  4.16(c)
Registration Statement......................................  3.8
Regulatory Material Adverse Effect..........................  5.1(a)(iv)
Salomon Smith Barney........................................  4.6
Section 16..................................................  2.4(c)
Securities Act..............................................  2.3(d)
Subcorp.....................................................  Preamble
Subcorp By-laws.............................................  1.4
Subcorp Common Stock........................................  2.1(a)
Subcorp Certificate of Incorporation........................  1.4
subsidiary..................................................  8.3
Superior Proposal...........................................  5.3(d)
Support Agreements..........................................  4.26
Surviving Corporation.......................................  1.1
Syncor......................................................  Preamble
Syncor Affiliate Letter.....................................  5.3(e)
Syncor Board Recommendation.................................  4.25
Syncor By-laws..............................................  4.1
Syncor Certificate..........................................  4.1
Syncor Change in Recommendation.............................  5.3(a)
Syncor Common Stock.........................................  4.4
Syncor Disclosure Schedule..................................  4.1
Syncor Employees............................................  5.2(f)(i)
Syncor ESPP.................................................  5.2(f)(v)
Syncor Option...............................................  2.4(a)
Syncor Permits..............................................  4.21(a)
Syncor Rights Agreement.....................................  4.26
Syncor SEC Documents........................................  4.8
Syncor Stockholders.........................................  Preliminary Statement B
Syncor Stockholders Meeting.................................  5.3(a)
Tax Returns.................................................  4.13(i)
Taxes.......................................................  4.13(j)


                                       -v-


                          AGREEMENT AND PLAN OF MERGER

     This Agreement and Plan of Merger (this "Agreement") is made and entered
into as of the 14th day of June 2002, by and among Cardinal Health, Inc., an
Ohio corporation ("Cardinal"), Mudhen Merger Corp., a Delaware corporation and a
wholly owned subsidiary of Cardinal ("Subcorp"), and Syncor International
Corporation, a Delaware corporation ("Syncor").

                             PRELIMINARY STATEMENTS

     A. Cardinal desires to combine its businesses with the businesses operated
by Syncor through the merger of Subcorp with and into Syncor, with Syncor as the
surviving corporation (the "Merger"), pursuant to which each share of Syncor
Common Stock (as defined in Section 4.4) outstanding at the Effective Time (as
defined in Section 1.2) will be converted into the right to receive Cardinal
Common Shares (as defined in Section 3.3(a)), all as more fully provided in this
Agreement.

     B. The Board of Directors of Syncor has determined that the Merger is
consistent with and in furtherance of the long-term business strategy of Syncor,
and Syncor desires to combine its businesses with the businesses operated by
Cardinal and for the holders of shares of Syncor Common Stock ("Syncor
Stockholders") to have a continuing equity interest in the combined
Cardinal/Syncor businesses through the ownership of Cardinal Common Shares.

     C. The parties to this Agreement intend that the Merger constitute a
"reorganization" (within the meaning of Section 368(a)(1)(B) of the Internal
Revenue Code of 1986, as amended (together with the rules and regulations
thereunder, the "Code")) and this Agreement be adopted as a plan of
reorganization for the purposes of Section 368 of the Code.

     D. Concurrently with the execution of this Agreement, and as a condition
and inducement to Cardinal's willingness to enter into this Agreement, certain
Syncor Stockholders are entering into Support Agreements (as defined in Section
4.26) with Cardinal in the form of Exhibit B to this Agreement.

     E. The respective Boards of Directors of Cardinal, Subcorp and Syncor have
determined the Merger in the manner contemplated in this Agreement to be
advisable and in the best interests of their respective shareholders or
stockholders, as the case may be, and, by resolutions duly adopted, have
approved and adopted this Agreement.

                                   AGREEMENT

     Now, therefore, in consideration of these premises and the mutual and
dependent promises set forth in this Agreement, the parties to this Agreement
agree as follows:

                                   ARTICLE I.

                                   THE MERGER

     1.1.  The Merger.  Upon the terms and subject to the conditions of this
Agreement, and in accordance with the provisions of the Delaware General
Corporation Law (the "DGCL"), Subcorp shall be merged with and into Syncor at
the Effective Time. As a result of the Merger, the separate corporate existence
of Subcorp shall cease and Syncor shall continue its existence under the laws of
the State of Delaware as a wholly owned subsidiary of Cardinal. Syncor, in its
capacity as the corporation surviving the Merger, is sometimes referred to as
the "Surviving Corporation."

     1.2.  Effective Time.  As promptly as possible on the Closing Date (as
defined below), the parties to this Agreement shall cause the Merger to be
consummated by filing with the Secretary of State of the State of Delaware (the
"Delaware Secretary of State") a certificate of merger (the "Certificate of
Merger") in such form as is required by and executed in accordance with Section
251 of the DGCL. The Merger shall become effective when the Certificate of
Merger has been filed with the Delaware Secretary of State or at such later

                                       A-1


time as shall be agreed upon by Cardinal and Syncor and specified in the
Certificate of Merger (the "Effective Time"). Prior to the filing referred to in
this Section 1.2, a closing (the "Closing") shall be held at the offices of
Wachtell, Lipton, Rosen & Katz, 51 West 52nd Street, New York, New York, or such
other place as the parties to this Agreement may agree on, as soon as
practicable (but in any event within three business days) following the date
upon which all conditions set forth in Article VI that are capable of being
satisfied prior to the Closing have been satisfied or waived, or at such other
date as Cardinal and Syncor may agree; provided that the Closing shall be
delayed if and only for so long as necessary if a banking moratorium, act of
terrorism or war (whether or not declared) affecting United States banking or
financial markets generally prevents the Closing. The date on which the Closing
takes place is referred to as the "Closing Date." For all Tax (as defined in
Section 4.13(j)) purposes, the Closing shall be effective at the end of the day
on the Closing Date.

     1.3.  Effects of the Merger.  From and after the Effective Time, the Merger
shall have the effects as provided for in this Agreement and the applicable
provisions of the DGCL, including those set forth in Section 259 of the DGCL.

     1.4.  Certificate of Incorporation and By-laws.  The Certificate of Merger
shall provide that, at the Effective Time, (a) the Certificate of Incorporation
of the Surviving Corporation as in effect immediately prior to the Effective
Time shall be amended as of the Effective Time so as to contain the provisions,
and only the provisions, contained immediately prior to the Effective Time in
the Certificate of Incorporation of Subcorp (the "Subcorp Certificate of
Incorporation"), except for Article I of the Subcorp Certificate of
Incorporation, which shall continue to read "The name of the corporation is
"SYNCOR INTERNATIONAL CORPORATION'," and (b) the By-laws of Subcorp (the
"Subcorp By-laws") in effect immediately prior to the Effective Time shall be
the By-laws of the Surviving Corporation, in each case, until amended in
accordance with the DGCL.

     1.5.  Directors and Officers of the Surviving Corporation.  From and after
the Effective Time, the officers of Syncor shall be the officers of the
Surviving Corporation and the directors of Subcorp shall be the directors of the
Surviving Corporation, in each case, until their respective successors are duly
elected and qualified. On or prior to the Closing Date, Syncor shall deliver to
Cardinal evidence satisfactory to Cardinal of the resignations of the directors
of Syncor, such resignations to be effective as of the Effective Time.

     1.6.  Additional Actions.  If, at any time after the Effective Time, the
Surviving Corporation shall consider or be advised that any further deeds,
assignments or assurances in law or any other acts are necessary or desirable to
(a) vest, perfect or confirm, of record or otherwise, in the Surviving
Corporation its right, title or interest in, to or under any of the rights,
properties or assets of Syncor or (b) otherwise carry out the provisions of this
Agreement, Syncor and the officers and directors of Syncor shall be deemed to
have granted to the Surviving Corporation an irrevocable power of attorney, and
the Surviving Corporation and the officers and directors of the Surviving
Corporation will be authorized in the name of and on behalf of Syncor to execute
and deliver all such deeds, assignments or assurances in law and to take all
acts necessary, proper or desirable to vest, perfect or confirm title to and
possession of such rights, properties or assets in the Surviving Corporation and
otherwise to carry out the provisions of this Agreement, and the officers and
directors of the Surviving Corporation are authorized in the name of Syncor or
otherwise to take any and all such action.

                                  ARTICLE II.

                            CONVERSION OF SECURITIES

     2.1.  Conversion of Capital Stock.  At the Effective Time, by virtue of the
Merger and without any action on the part of Cardinal, Subcorp or Syncor or
their respective shareholders and stockholders, as applicable:

          (a) Each share of common stock, $0.01 par value, of Subcorp ("Subcorp
     Common Stock") issued and outstanding immediately prior to the Effective
     Time shall be converted into one validly issued, fully paid and
     nonassessable share of common stock, $0.01 par value, of the Surviving
     Corporation. Such newly issued shares shall thereafter constitute all of
     the issued and outstanding capital stock of the Surviving Corporation.

                                       A-2


          (b) Subject to the other provisions of this Article II, each share of
     Syncor Common Stock issued and outstanding immediately prior to the
     Effective Time shall be converted into and represent the right to receive a
     number of Cardinal Common Shares equal to the Exchange Ratio (as defined in
     Section 2.2(a)).

          (c) Each share of capital stock of Syncor held in the treasury of
     Syncor shall be cancelled and retired and no payment shall be made in
     respect thereof.

     2.2.  Exchange Ratio; Fractional Shares; Adjustments.

     (a) The "Exchange Ratio" shall be equal to 0.52.

     (b) No certificates for fractional Cardinal Common Shares shall be issued
as a result of the conversion provided for in Section 2.1(b) and such fractional
share interests will not entitle the owner thereof to vote or have any rights of
a holder of Cardinal Common Shares.

     (c) In lieu of any such fractional Cardinal Common Shares, each holder of a
certificate or certificates that immediately prior to the Effective Time
represented outstanding shares of Syncor Common Stock (the "Certificates") that
would otherwise have been entitled to a fraction of a Cardinal Common Share upon
surrender of Certificates (determined after taking into account all Certificates
delivered by such Syncor Stockholder) shall be paid upon such surrender cash
(without interest) in an amount equal to such Syncor Stockholder's proportionate
interest in the net proceeds from the sale or sales in the open market by the
Exchange Agent, on behalf of all such Syncor Stockholders, of the aggregate
fractional Cardinal Common Shares issued pursuant to this Article II. As soon as
practicable following the Effective Date, the Exchange Agent shall determine the
excess of (i) the number of full Cardinal Common Shares delivered to the
Exchange Agent by Cardinal over (ii) the aggregate number of full Cardinal
Common Shares to be distributed to Syncor Stockholders (such excess, the "Excess
Shares"), and the Exchange Agent, as agent for the former Syncor Stockholders,
shall sell the Excess Shares at the prevailing prices on the New York Stock
Exchange, Inc. (the "NYSE"). The sale of the Excess Shares by the Exchange Agent
shall be executed on the NYSE through one or more member firms of the NYSE and
shall be executed in round lots to the extent practicable. All commissions,
stock transfer Taxes and other out-of-pocket transaction costs, including the
expenses and compensation of the Exchange Agent, incurred in connection with
such sale of Excess Shares shall be paid by the Surviving Corporation. The
Exchange Agent shall determine the portion of the proceeds of such sale to which
each Syncor Stockholder shall be entitled, if any, by multiplying the amount of
the proceeds of such sale by a fraction the numerator of which is the amount of
fractional share interests to which such Syncor Stockholder is entitled (after
taking into account all shares of Syncor Common Stock held at the Effective Time
by such Syncor Stockholders) and the denominator of which is the aggregate
amount of fractional share interests to which all Syncor Stockholders are
entitled. Until the proceeds of such sale have been distributed to the former
Syncor Stockholders, the Exchange Agent will hold such proceeds in trust for
such former Syncor Stockholders. As soon as practicable after the determination
of the amount of cash to be paid to such Syncor Stockholder in lieu of any
fractional interests, the Exchange Agent shall make available in accordance with
this Agreement such amounts to such former Syncor Stockholder.

     (d) In the event that, prior to the Effective Time, Cardinal shall declare
a stock dividend or other distribution payable in Cardinal Common Shares or
securities convertible into Cardinal Common Shares, or effect a stock split,
reclassification, reorganization, recapitalization, combination or other like
change with respect to Cardinal Common Shares having a record date or effective
date prior to the Effective Time, the Exchange Ratio set forth in this Section
2.2 shall be adjusted to reflect fully such dividend, distribution, stock split,
reclassification, reorganization, recapitalization, combination or other like
change.

     2.3.  Exchange of Certificates.

     (a) Exchange Agent. Promptly following the Effective Time, Cardinal shall
deposit with EquiServe Trust Company or such other nationally-recognized
exchange agent as may be designated by Cardinal (the "Exchange Agent"), for the
benefit of Syncor Stockholders, for exchange in accordance with this Section
2.3, certificates representing Cardinal Common Shares issuable pursuant to
Section 2.1 in exchange for outstand-

                                       A-3


ing shares of Syncor Common Stock (such Cardinal Common Shares, together with
any dividends or distributions with respect thereto, the "Exchange Fund").

     (b) Exchange Procedures.  As soon as practicable after the Effective Time,
the Exchange Agent shall mail to each holder of record of a Certificate, (i) a
letter of transmittal in customary form (which shall specify that delivery shall
be effected, and risk of loss and title to the Certificates shall pass, only
upon delivery of the Certificates to the Exchange Agent, and shall be in such
form and have such other customary provisions as Cardinal (in consultation with
Syncor) may reasonably specify) and (ii) instructions for effecting the
surrender of the Certificates in exchange for certificates representing Cardinal
Common Shares. Upon surrender of a Certificate for cancellation to the Exchange
Agent, together with a duly executed letter of transmittal, the holder of the
Certificate shall be entitled to receive in exchange therefor (i) a certificate
or certificates representing that whole number of Cardinal Common Shares that
the Syncor Stockholder has the right to receive pursuant to Section 2.1 in such
denominations and registered in such names as the Syncor Stockholder may request
and (ii) a check representing the amount of cash in lieu of fractional shares,
if any, and unpaid dividends and distributions, if any, which the Syncor
Stockholder has the right to receive pursuant to the provisions of this Article
II, after giving effect to any required withholding Tax. The shares of Syncor
Common Stock represented by the Certificates so surrendered shall forthwith be
cancelled. No interest will be paid or accrued on the cash in lieu of fractional
shares, if any, and unpaid dividends and distributions, if any, payable to
Syncor Stockholders. In the event of a transfer of ownership of shares of Syncor
Common Stock that is not registered on the transfer records of Syncor, a
certificate representing the proper number of Cardinal Common Shares, together
with a check for the cash to be paid in lieu of fractional shares, if any, and
unpaid dividends and distributions, if any, may be issued to the transferee if
the Certificate held by the transferee is presented to the Exchange Agent,
accompanied by all documents reasonably required to evidence and effect the
transfer and to evidence that any applicable stock transfer Taxes have been
paid. Until surrendered as contemplated by this Section 2.3, each Certificate
shall be deemed, at any time after the Effective Time, to represent only the
right to receive upon surrender a certificate representing Cardinal Common
Shares and cash in lieu of fractional shares, if any, and unpaid dividends and
distributions, if any, as provided in this Article II. If any Certificate shall
have been lost, stolen or destroyed, upon the making of an affidavit of that
fact by the person claiming the Certificate to be lost, stolen or destroyed and,
if required by Cardinal, the posting by the person of a bond in such reasonable
and customary amount as Cardinal may direct as indemnity against any claim that
may be made against it with respect to the Certificate, the Exchange Agent will
deliver in exchange for the lost, stolen or destroyed Certificate, a certificate
representing the proper number of Cardinal Common Shares, together with a check
for the cash to be paid in lieu of fractional shares, if any, with respect to
the shares of Syncor Common Stock formerly represented by the Certificate, and
unpaid dividends and distributions on Cardinal Common Shares, if any, as
provided in this Article II. Receipt by the Exchange Agent of such affidavit in
reasonably acceptable form and posting of such a bond, if required, shall be
deemed delivery and/or surrender of a Certificate with respect to the relevant
shares of Syncor Common Stock for purposes of this Article II.

     (c) Distributions with Respect to Unexchanged Shares.  Notwithstanding any
other provisions of this Agreement, no dividends or other distributions declared
or made after the Effective Time with respect to Cardinal Common Shares having a
record date after the Effective Time shall be paid to the holder of any
unsurrendered Certificate, and no cash payment in lieu of fractional shares
shall be paid to any such holder, until the holder shall surrender the
Certificate as provided in this Section 2.3. Subject to the effect of Applicable
Laws (as defined in Section 3.9), following surrender of the Certificate, there
shall be paid to the holder of the certificates representing whole Cardinal
Common Shares issued in exchange therefor, without interest, (i) at the time of
such surrender, the amount of dividends or other distributions with a record
date after the Effective Time theretofore payable with respect to such whole
Cardinal Common Shares and not paid, less the amount of any withholding Taxes
that may be required thereon, and (ii) at the appropriate payment date
subsequent to surrender, the amount of dividends or other distributions with a
record date after the Effective Time but prior to surrender and a payment date
subsequent to surrender payable with respect to such whole Cardinal Common
Shares, less the amount of any withholding Taxes that may be required thereon.

                                       A-4


     (d) No Further Ownership Rights in Syncor Common Stock.  All Cardinal
Common Shares issued upon surrender of Certificates in accordance with the terms
of this Agreement (including any cash paid pursuant to this Article II) shall be
deemed to have been issued in full satisfaction of all rights pertaining to such
shares of Syncor Common Stock represented thereby, and, as of the Effective
Time, the stock transfer books of Syncor shall be closed and there shall be no
further registration of transfers on the stock transfer books of Syncor of
shares of Syncor Common Stock outstanding immediately prior to the Effective
Time. If, after the Effective Time, Certificates are presented to the Surviving
Corporation for any reason, they shall be cancelled and exchanged as provided in
this Section 2.3. Certificates surrendered for exchange by any person identified
pursuant to Section 5.3(e) as an "affiliate" of Syncor for purposes of Rule
145(c) under the Securities Act of 1933, as amended (together with the rules and
regulations thereunder, the "Securities Act"), shall not be exchanged until
Cardinal has received written undertakings from such person in the form attached
as Exhibit A to this Agreement.

     (e) Termination of Exchange Fund.  Any portion of the Exchange Fund that
remains undistributed to Syncor Stockholders six months after the date of the
mailing required by Section 2.3(b) shall be delivered to Cardinal, upon demand
thereby, and holders of Certificates that have not theretofore complied with
this Section 2.3 shall thereafter look only to Cardinal for payment of any claim
to Cardinal Common Shares, cash in lieu of fractional shares thereof, or
dividends or distributions, if any, in respect thereof, or any other
consideration pursuant to this Agreement.

     (f) No Liability.  None of Cardinal, the Surviving Corporation or the
Exchange Agent shall be liable to any person in respect of any shares of Syncor
Common Stock (or dividends or distributions with respect thereto) or cash from
the Exchange Fund delivered to a public official pursuant to any applicable
abandoned property, escheat or similar law. If any Certificates shall not have
been surrendered prior to seven years after the Effective Time (or immediately
prior to such earlier date on which any cash, any cash in lieu of fractional
shares or any dividends or distributions with respect to whole shares of Syncor
Common Stock in respect of such Certificate would otherwise escheat to or become
the property of any Governmental Authority (as defined in Section 3.4(d))), any
such cash, dividends or distributions in respect of such Certificate shall, to
the extent permitted by Applicable Laws, become the property of Cardinal, free
and clear of all claims or interest of any person previously entitled thereto.

     (g) Investment of Exchange Fund.  The Exchange Agent shall invest any cash
balances in the Exchange Fund as a result of Section 2.2(c), as directed by
Cardinal, on a daily basis; provided that no such investment shall affect
Cardinal's obligation to deposit the full amount of cash required from time to
time under Section 2.3(a). Any interest and other income resulting from such
investments shall be paid to Cardinal upon termination of the Exchange Fund
pursuant to Section 2.3(e).

     (h) Withholding Rights.  Each of the Surviving Corporation and Cardinal
shall be entitled to deduct and withhold from the consideration otherwise
payable pursuant to this Agreement to any Syncor Stockholder such amounts as it
is required to deduct and withhold with respect to the making of such payment
under the Code, or any provision of state, local or foreign tax law. To the
extent that amounts are so withheld by the Surviving Corporation or Cardinal, as
the case may be, such withheld amounts shall be treated for all purposes of this
Agreement as having been paid to Syncor Stockholders in respect of which such
deduction and withholding was made by the Surviving Corporation or Cardinal, as
the case may be.

     2.4.  Treatment of Stock Options.

     (a) Prior to the Effective Time, Cardinal and Syncor shall take all such
actions as may be necessary to cause each unexpired and unexercised outstanding
option granted or issued under Syncor stock option or equity-incentive plans in
effect on the date of this Agreement (each, a "Syncor Option") to be
automatically converted at the Effective Time into a fully-vested option (a
"Cardinal Exchange Option") to purchase that number of Cardinal Common Shares
equal to the number of shares of Syncor Common Stock subject to the Syncor
Option immediately prior to the Effective Time multiplied by the Exchange Ratio
(and rounded to the nearest share), with an exercise price per share equal to
the exercise price per share that existed under the corresponding Syncor Option
divided by the Exchange Ratio (and rounded to the nearest whole cent), and with
other terms and conditions that are the same as the terms and conditions of the
Syncor Option

                                       A-5


immediately before the Effective Time; provided that, with respect to any Syncor
Option that is an "incentive stock option" (within the meaning of Section 422 of
the Code), the foregoing conversion shall be carried out in a manner satisfying
the requirements of Section 424(a) of the Code. In connection with the issuance
of Cardinal Exchange Options, Cardinal shall (i) reserve for issuance the number
of Cardinal Common Shares that will become subject to Cardinal Exchange Options
pursuant to this Section 2.4, and (ii) from and after the Effective Time, upon
exercise of Cardinal Exchange Options, make available for issuance all Cardinal
Common Shares covered by Cardinal Exchange Options, subject to the terms and
conditions applicable to Cardinal Exchange Options.

     (b) Cardinal will file with the Securities and Exchange Commission (the
"Commission"), within ten days after the Effective Time, such registration
statements on Form S-8 or other appropriate forms under the Securities Act to
register Cardinal Common Shares necessary to fulfill Cardinal's obligation
pursuant to this Section 2.4, including those Cardinal Common Shares issuable
upon exercise of Cardinal Exchange Options and to use its reasonable efforts to
cause such registration statements to remain effective until the exercise or
expiration of all Cardinal Exchange Options.

     (c) Prior to the Effective Time: (i) the Board of Directors of Cardinal, or
an appropriate committee of non-employee directors of Cardinal, shall adopt a
binding resolution consistent with the interpretive guidance of the Commission
so that the acquisition by any officer or director of Syncor who may become a
covered person of Cardinal for purposes of Section 16 (together with the rules
and regulations thereunder, "Section 16") of the Securities Exchange Act of
1934, as amended (together with the rules and regulations thereunder, the
"Exchange Act"), of Cardinal Common Shares or Cardinal Exchange Options pursuant
to this Agreement and the Merger shall be an exempt transaction for purposes of
Section 16; and (ii) the Board of Directors of Syncor, or an appropriate
committee of non-employee directors of Syncor, shall adopt a binding resolution
consistent with the interpretive guidance of the Commission so that the
disposition by any officer or director of Syncor who is a covered person of
Syncor for purposes of Section 16 of shares of Syncor Common Stock or Syncor
Options pursuant to this Agreement and the Merger shall be an exempt transaction
for purposes of Section 16.

     (d) Cardinal shall be permitted to make additional grants of equal amounts
under the Syncor stock option plans following the Effective Time for an amount
of Cardinal Common Shares equal to the number of shares under the Syncor stock
option plans immediately prior to the Effective Time that are not subject to
outstanding awards, multiplied by the Exchange Ratio.

                                  ARTICLE III.

             REPRESENTATIONS AND WARRANTIES OF CARDINAL AND SUBCORP

     In order to induce Syncor to enter into this Agreement, Cardinal and
Subcorp hereby represent and warrant to Syncor that, subject to the
qualifications, limitations and exceptions set forth in this Agreement, the
statements contained in this Article III are true and correct:

     3.1.  Organization and Standing.  Each of Cardinal and Subcorp is a
corporation duly organized, validly existing and in good standing under the laws
of its state of incorporation with full corporate power and authority to own,
lease, use and operate its properties and to conduct its business as and where
now owned, leased, used, operated and conducted. Each of Cardinal and Subcorp is
duly qualified to do business and in good standing in each jurisdiction in which
the nature of the business conducted by it or the property it owns, leases or
operates, requires it to so qualify, except where the failure to be so qualified
or in good standing in such jurisdiction would not have a Material Adverse
Effect (as defined in Section 8.3) on Cardinal or Subcorp, as the case may be.
Cardinal is not in default in the performance, observance or fulfillment of any
provision of the Amended and Restated Articles of Incorporation of Cardinal, as
amended (the "Cardinal Articles") or the Restated Code of Regulations of
Cardinal, as amended (the "Cardinal Code of Regulations"), and Subcorp is not in
default in the performance, observance or fulfillment of any provisions of the
Subcorp Certificate of Incorporation or the Subcorp By-laws. Subcorp has, prior
to the date of this

                                       A-6


Agreement, furnished or made available to Syncor complete and correct copies of
the Subcorp Certificate of Incorporation and the Subcorp By-laws.

     3.2.  Corporate Power and Authority.  Each of Cardinal and Subcorp has all
requisite corporate power and authority to enter into and deliver this
Agreement, to perform its obligations under this Agreement and to consummate the
transactions contemplated by this Agreement. The execution and delivery of this
Agreement and the consummation of the transactions contemplated by this
Agreement by Cardinal and Subcorp have been duly authorized by all necessary
corporate action on the part of each of Cardinal and Subcorp. This Agreement has
been duly executed and delivered by each of Cardinal and Subcorp, and, assuming
this Agreement constitutes a valid and binding obligation of Syncor, constitutes
the legal, valid and binding obligation of Cardinal and Subcorp enforceable
against each of them in accordance with its terms.

     3.3.  Capitalization of Cardinal and Subcorp.

     (a) As of June 12, 2002, Cardinal's authorized capital stock consisted
solely of (i) 750,000,000 common shares, without par value ("Cardinal Common
Shares"), of which (A) 450,657,143 shares were issued and outstanding, (B)
10,218,008 shares were issued and held in treasury (which does not include
Cardinal Common Shares reserved for issuance or issued and held in treasury as
set forth in subclause (a)(i)(C) below), (C) 81,547,145 shares were reserved for
issuance pursuant to equity based plans for employees and directors for Cardinal
and its subsidiaries or upon the exercise or conversion of options, warrants or
convertible securities granted or issuable by Cardinal and (D) shares will be
issued pursuant to equity based plans or upon the exercise or conversion of
options granted or issuable by Cardinal in connection with the anticipated
closing of the acquisition of Boron, LePore & Associates, Inc. in an amount
determined in accordance with the formula set forth in Section 3.3 to the
disclosure schedule delivered by Cardinal to Syncor and dated the date of this
Agreement (the "Cardinal Disclosure Schedule"), (ii) 5,000,000 Class B common
shares, without par value, none of which was issued and outstanding or reserved
for issuance, and (iii) 500,000 non-voting preferred shares, without par value,
none of which was issued and outstanding or reserved for issuance or issued and
held in treasury. Each outstanding share of capital stock of Cardinal is, and
all Cardinal Common Shares to be issued in connection with the Merger or upon
exercise of any Cardinal Exchange Option will be, duly authorized and validly
issued, fully paid and nonassessable, and each outstanding share of capital
stock of Cardinal has not been, and all Cardinal Common Shares to be issued in
connection with the Merger or upon exercise of any Cardinal Exchange Option will
not be, issued in violation of any preemptive or similar rights. As of the date
of this Agreement, other than as set forth in the first sentence of this Section
3.3(a) or in Section 3.3 to the Cardinal Disclosure Schedule, there are no
outstanding subscriptions, options, warrants, puts, calls, agreements,
understandings, claims or other commitments or rights of any type relating to
the issuance, sale, repurchase, transfer or registration by Cardinal of any
equity securities of Cardinal, nor are there outstanding any securities that are
convertible into or exchangeable for any shares of capital stock of Cardinal and
Cardinal has no obligation of any kind to issue any additional securities. The
Cardinal Common Shares (including Cardinal Common Shares to be issued in the
Merger or, subject to Section 2.4, upon exercise of any Cardinal Exchange
Option) are registered under the Exchange Act. Except as set forth in Section
3.3 to the Cardinal Disclosure Schedule, as of the date of this Agreement,
Cardinal has not agreed to register any securities under the Securities Act or
under any state securities law or granted registration rights to any individual
or entity (which rights are currently exercisable).

     (b) The authorized capital stock of Subcorp consists solely of 1,000 shares
of Subcorp Common Stock, of which, as of the date of this Agreement, 100 were
issued and outstanding and none were reserved for issuance or issued and held in
treasury. All of the outstanding shares of Subcorp Common Stock are owned by
Cardinal free and clear of any liens, claims or encumbrances.

     3.4.  Conflicts; Consents and Approval.  Neither the execution and delivery
of this Agreement by Cardinal or Subcorp nor the consummation of the
transactions contemplated by this Agreement will:

          (a) conflict with, or result in a breach of any provision of the
     Cardinal Articles or the Cardinal Code of Regulations or the Subcorp
     Certificate of Incorporation or the Subcorp By-laws;

                                       A-7


          (b) violate, or conflict with, or result in a breach of any provision
     of, or constitute a default (or an event that, with the giving of notice,
     the passage of time or otherwise, would constitute a default) under, or
     entitle any person (with the giving of notice, the passage of time or
     otherwise) to terminate, accelerate, modify or call a default under, or
     result in the creation of any lien, security interest, charge or
     encumbrance upon any of the properties or assets of Cardinal or any of its
     subsidiaries under, any of the terms, conditions or provisions of any note,
     bond, mortgage, indenture, deed of trust, license, contract, undertaking,
     agreement, lease or other instrument or obligation to which Cardinal or any
     of its subsidiaries is a party;

          (c) violate any order, writ, injunction, decree, statute, rule or
     regulation applicable to Cardinal or any of its subsidiaries or their
     respective properties or assets; or

          (d) require any action or consent or approval of, or review by, or
     registration or filing by Cardinal or any of its affiliates with, any third
     party or any local, domestic, foreign or multinational court, arbitral
     tribunal, administrative agency or commission or other governmental or
     regulatory body, agency, instrumentality or authority, in each case, of
     competent jurisdiction (a "Governmental Authority"), other than (i)
     authorization for inclusion of Cardinal Common Shares to be issued in the
     Merger and the transactions contemplated by this Agreement on the NYSE,
     subject to official notice of issuance, (ii) actions required by the
     Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended (together
     with the rules and regulations thereunder, the "HSR Act"), (iii)
     registrations or other actions required under United States federal and
     state securities laws as are contemplated by this Agreement, (iv) filing of
     the Certificate of Merger and (v) consents or approvals of any Governmental
     Authority set forth in Section 3.4 to the Cardinal Disclosure Schedule;

except in the case of clauses (b), (c) and (d) above for any of the foregoing
that would not, individually or in the aggregate, have a Material Adverse Effect
on Cardinal or a material adverse effect on the ability of the parties to this
Agreement to consummate the transactions contemplated by this Agreement.

     3.5.  Brokerage and Finder's Fees.  Except as set forth in Section 3.5 to
the Cardinal Disclosure Schedule, none of Cardinal, any of its affiliates or any
shareholder, director, officer or employee of Cardinal has incurred or will
incur on behalf of Cardinal any brokerage, finder's, financial advisory or
similar fee in connection with the transactions contemplated by this Agreement.

     3.6.  Reorganization.  To the best knowledge of Cardinal (including the
executive officers and directors of Cardinal), after due investigation, neither
Cardinal nor any of its affiliates has taken or agreed to take any action that
(without giving effect to any actions taken or agreed to be taken by Syncor or
any of its affiliates) would prevent the Merger from constituting a
"reorganization" (within the meaning of Section 368(a) of the Code).

     3.7.  Cardinal SEC Documents.  Cardinal has timely filed with the
Commission all forms, reports, schedules, statements and other documents
required to be filed by it since January 1, 1999 under the Exchange Act or the
Securities Act (such documents, as supplemented and amended since the time of
filing, collectively, the "Cardinal SEC Documents"). The Cardinal SEC Documents,
including any financial statements or schedules included in the Cardinal SEC
Documents, at the time filed (and, in the case of registration statements and
proxy statements, on the dates of effectiveness and the dates of mailing,
respectively, and, in the case of any Cardinal SEC Document amended or
superseded by a filing prior to the date of this Agreement, then on the date of
such amending or superseding filing), (a) did not contain any untrue statement
of a material fact or omit to state a material fact required to be stated
therein or necessary in order to make the statements therein, in light of the
circumstances under which they were made, not misleading, and (b) complied in
all material respects with the applicable requirements of the Exchange Act and
the Securities Act, as the case may be. The financial statements of Cardinal
included in the Cardinal SEC Documents at the time filed (and, in the case of
registration statements and proxy statements, on the dates of effectiveness and
the dates of mailing, respectively, and, in the case of any Cardinal SEC
Document amended or superseded by a filing prior to the date of this Agreement,
then on the date of such amending or superseding filing) complied as to form in
all material respects with applicable accounting requirements and with the
published rules and regulations of the Commission with respect thereto, were
prepared in accordance with

                                       A-8


United States generally accepted accounting principles ("GAAP") applied on a
consistent basis during the periods involved (except as may be indicated in the
notes thereto, or, in the case of unaudited statements, as permitted by Form
10-Q of the Commission), and fairly present in all material respects (subject,
in the case of unaudited statements, to normal, recurring audit adjustments) the
consolidated financial position of Cardinal and its consolidated subsidiaries as
at the dates thereof and the consolidated results of their operations and cash
flows for the periods then ended.

     3.8.  Registration Statement.  None of the information provided in writing
by Cardinal for inclusion in the registration statement on Form S-4 (as amended,
supplemented or modified, the "Registration Statement") to be filed with the
Commission by Cardinal under the Securities Act, including the prospectus
relating to Cardinal Common Shares to be issued in the Merger and the proxy
statement and form of proxies relating to the vote of Syncor Stockholders with
respect to this Agreement (as amended, supplemented or modified, the "Proxy
Statement"), at the time the Registration Statement becomes effective, or, in
the case of the Proxy Statement, at the date of mailing and at the date of the
Syncor Stockholders Meeting (as defined in Section 5.3(a)) to consider the
Merger and the transactions contemplated by this Agreement, will contain any
untrue statement of a material fact or omit to state any material fact required
to be stated therein or necessary in order to make the statements therein, in
light of the circumstances under which they are made, not misleading. The
Registration Statement and Proxy Statement, except for such portions of the
Registration Statement and Proxy Statement that relate only to Syncor, each will
comply as to form in all material respects with the provisions of the Securities
Act and the Exchange Act.

     3.9.  Compliance with Law.  Except as set forth in Section 3.9 to the
Cardinal Disclosure Schedule, Cardinal is in compliance with, and at all times
since January 1, 1999 has been in compliance with, all applicable laws,
statutes, orders, rules, regulations, policies or guidelines promulgated, or
judgments, decisions or orders entered by any Governmental Authority
(collectively, "Applicable Laws") relating to Cardinal or its business or
properties, except where the failure to be in compliance with such Applicable
Laws, individually or in the aggregate, would not reasonably be expected to have
a Material Adverse Effect on Cardinal. Except as set forth in Section 3.9 to the
Cardinal Disclosure Schedule, no investigation or review by any Governmental
Authority with respect to Cardinal or its subsidiaries is pending, or, to the
knowledge of Cardinal, threatened, nor has any Governmental Authority indicated
in writing an intention to conduct the same, other than those the outcome of
which would not reasonably be expected to have a Material Adverse Effect on
Cardinal.

     3.10.  Litigation.  Except as set forth in Section 3.10 to the Cardinal
Disclosure Schedule or in the Cardinal SEC Documents, there is no suit, claim,
action, proceeding, hearing, notice of violation, demand letter or investigation
(each, an "Action") pending, or, to the knowledge of Cardinal, threatened,
against Cardinal or any executive officer or director of Cardinal that,
individually or in the aggregate, would reasonably be expected to have a
Material Adverse Effect on Cardinal or a material adverse effect on the ability
of Cardinal to consummate the transactions contemplated by this Agreement.
Cardinal is not subject to any outstanding order, writ, injunction or decree
specifically applicable to, or having a disproportionate effect on, Cardinal and
its subsidiaries that, individually or in the aggregate, would reasonably be
expected to have a Material Adverse Effect on Cardinal or a material adverse
effect on the ability of Cardinal to consummate the transactions contemplated by
this Agreement. Except as set forth in Section 3.10 to the Cardinal Disclosure
Schedule, since January 1, 1999, Cardinal has not been subject to any
outstanding material order, writ, injunction or decree relating to Cardinal's
method of doing business or its relationship with past, existing or future users
or purchasers of any goods or services of Cardinal.

     3.11.  No Material Adverse Change.  Except as set forth in Section 3.11 to
the Cardinal Disclosure Schedule, from March 31, 2002 through the date of this
Agreement, (i) the businesses of Cardinal and its subsidiaries have been
conducted in all material respects in the ordinary course of business and (ii)
there has been no Material Adverse Effect on Cardinal or a material adverse
effect on the ability of Cardinal to consummate the transactions contemplated by
this Agreement.

     3.12.  Subcorp's Operations.  Subcorp is a direct wholly owned subsidiary
of Cardinal that was formed solely for the purpose of engaging in the
transactions contemplated by this Agreement, and has not (i) engaged in any
business activities, (ii) conducted any operations other than in connection with
the

                                       A-9


transactions contemplated by this Agreement, or (iii) incurred any liabilities
other than in connection with the transactions contemplated by this Agreement.
Cardinal, as Subcorp's sole stockholder, has approved Subcorp's execution of
this Agreement.

     3.13.  Undisclosed Liabilities.  Except (a) as and to the extent disclosed
or reserved against on the balance sheet of Cardinal as of March 31, 2002
included in the Cardinal SEC Documents, (b) as incurred after the date thereof
in the ordinary course of business consistent with prior practice and, if
incurred after the date of this Agreement, not prohibited by this Agreement, or
(c) as set forth in Section 3.13 to the Cardinal Disclosure Schedule, Cardinal
and its subsidiaries do not have any liabilities or obligations of any nature,
whether known or unknown, absolute, accrued, contingent or otherwise and whether
due or to become due, that, individually or in the aggregate, have or would
reasonably be expected to have a Material Adverse Effect on Cardinal.

                                  ARTICLE IV.

                    REPRESENTATIONS AND WARRANTIES OF SYNCOR

     In order to induce Subcorp and Cardinal to enter into this Agreement,
Syncor hereby represents and warrants to Cardinal and Subcorp that, subject to
the qualifications, limitations and exceptions set forth in this Agreement, the
statements contained in this Article IV are true and correct:

     4.1.  Organization and Standing.  Syncor is a corporation duly organized,
validly existing and in good standing under the laws of the State of Delaware
with full corporate power and authority to own, lease, use and operate its
properties and to conduct its business as and where now owned, leased, used,
operated and conducted. Each of Syncor and each of its subsidiaries is duly
qualified to do business and is in good standing in each jurisdiction in which
the nature of the business conducted by it or the property it owns, leases or
operates requires it to so qualify, except where the failure to be so qualified
or in good standing in such jurisdiction would not have a Material Adverse
Effect on Syncor. Syncor is not in default in the performance, observance or
fulfillment of any provision of the Syncor Amended and Restated Certificate of
Incorporation (the "Syncor Certificate"), or the By-laws of Syncor, as in effect
on the date of this Agreement (the "Syncor By-laws"). Syncor has heretofore
furnished to Cardinal complete and correct copies of the Syncor Certificate and
the Syncor By-laws. Listed in Section 4.1 to the disclosure schedule delivered
by Syncor to Cardinal and dated the date of this Agreement (the "Syncor
Disclosure Schedule") is each jurisdiction in which Syncor or its subsidiaries
is qualified to do business and, whether Syncor (or its subsidiaries) is in good
standing as of the date of this Agreement.

     4.2.  Subsidiaries.  Syncor does not own, directly or indirectly, any
material equity or other ownership interest in any corporation, partnership,
joint venture or other entity or enterprise, except for the subsidiaries set
forth in Section 4.2 to the Syncor Disclosure Schedule. Except as set forth in
Section 4.2 to the Syncor Disclosure Schedule, Syncor is not subject to any
obligation or requirement to provide funds to or make any investment (in the
form of a loan, capital contribution or otherwise) in any such entity or any
other person except as would, individually or in the aggregate, not be material
funds or investments. Except as set forth in Section 4.2 to the Syncor
Disclosure Schedule, Syncor owns, directly or indirectly, each of the
outstanding shares of capital stock (or other ownership interests having by
their terms ordinary voting power to elect a majority of directors or others
performing similar functions with respect to such subsidiary) of each of its
subsidiaries. Each of the outstanding shares of capital stock of each of
Syncor's subsidiaries is duly authorized, validly issued, fully paid and
nonassessable, and is owned, directly or indirectly, by Syncor free and clear of
all liens, pledges, security interests, claims or other encumbrances. The
following information for each of Syncor's subsidiaries is set forth in Section
4.2 to the Syncor Disclosure Schedule, as applicable: (i) its name and
jurisdiction of incorporation or organization; (ii) its authorized capital stock
or share capital; and (iii) the number of issued and outstanding shares of
capital stock or share capital and the record owner(s) thereof. Other than as
set forth in Section 4.2 to the Syncor Disclosure Schedule, there are no
outstanding subscriptions, options, warrants, puts, calls, agreements,
understandings, claims or other commitments or rights of any type relating to
the issuance, sale or transfer of any securities of any of Syncor's
subsidiaries, nor are there outstanding any securities that are convertible into
or exchangeable for any shares of capital stock of

                                       A-10


any of Syncor's subsidiaries, and neither Syncor nor any of its subsidiaries has
any obligation of any kind to issue any additional securities or to pay for or
repurchase any securities of any of Syncor's subsidiaries or any predecessors
thereof.

     4.3.  Corporate Power and Authority.  Syncor has all requisite corporate
power and authority to enter into and deliver this Agreement, to perform its
obligations under this Agreement, and, subject to approval of this Agreement by
Syncor Stockholders, to consummate the transactions contemplated by this
Agreement. The execution and delivery of this Agreement by Syncor have been duly
authorized by all necessary corporate action on the part of Syncor, subject to
approval of this Agreement by Syncor Stockholders. This Agreement has been duly
executed and delivered by Syncor, and, assuming this Agreement constitutes a
valid and binding obligation of Cardinal and Subcorp, constitutes the legal,
valid and binding obligation of Syncor enforceable against it in accordance with
its terms.

     4.4.  Capitalization of Syncor.  As of June 12, 2002, the authorized
capital stock of Syncor consisted solely of 200,000,000 shares of common stock,
par value $.05 per share ("Syncor Common Stock"), of which (i) 24,798,473 shares
were issued and outstanding, (ii) 3,749,968 shares were issued and held in
treasury (which number does not include the shares reserved for issuance or
issued and held in treasury set forth in clause (iii) below), (iii) 7,817,586
shares were reserved for issuance upon the exercise of outstanding Syncor
Options and (iv) 28,548,441 shares were reserved for issuance pursuant to the
rights issued under the Syncor Rights Agreement (as defined in Section 4.26).
Each outstanding share of capital stock of Syncor is duly authorized and validly
issued, fully paid and nonassessable, and has not been issued in violation of
any preemptive or similar rights. Other than as set forth in the first sentence
of this Section 4.4, in Section 4.4 to the Syncor Disclosure Schedule or as
granted after June 14, 2002 as permitted by this Agreement, there are no
outstanding subscriptions, options, warrants, puts, calls, agreements,
understandings, claims or other commitments or rights of any type relating to
the issuance, sale, repurchase or transfer of any securities of Syncor, nor are
there outstanding any securities that are convertible into or exchangeable for
any shares of capital stock of Syncor, and neither Syncor nor any of its
subsidiaries has any obligation of any kind to issue any additional securities
or to pay for or repurchase any securities of Syncor or any predecessors of
Syncor. The issuance and sale of all of the shares of capital stock of Syncor
described in this Section 4.4 have been in compliance with United States federal
and state securities laws. Section 4.4 to the Syncor Disclosure Schedule sets
forth the names of, and the number of shares of each class (including the number
of shares of Syncor Common Stock issuable upon exercise of Syncor Options and
the exercise price and vesting schedule with respect thereto) and the number of
options held by, all holders of options to purchase capital stock of Syncor.
Syncor has not agreed to register any securities under the Securities Act or
under any state securities law or granted registration rights to any individual
or entity; to the extent any such agreements exist, complete and correct copies
of any such agreements have previously been provided to Cardinal.

     4.5.  Conflicts; Consents and Approvals.  Except as set forth in Section
4.5 to the Syncor Disclosure Schedule, neither the execution and delivery of
this Agreement by Syncor, nor the consummation of the transactions contemplated
by this Agreement will:

          (a) conflict with, or result in a breach of any provision of, the
     Syncor Certificate or the Syncor By-laws;

          (b) violate, or conflict with, or result in a breach of any provision
     of, or constitute a default (or an event that, with the giving of notice,
     the passage of time or otherwise, would constitute a default) under, or
     entitle any person (with the giving of notice, the passage of time or
     otherwise) to terminate, accelerate, modify or call a default under, or
     result in the creation of any lien, security interest, charge or
     encumbrance upon any of the material properties or assets of Syncor or any
     of its subsidiaries under, any of the terms, conditions or provisions of
     any note, bond, mortgage, indenture, deed of trust, license, contract,
     undertaking, agreement, lease or other instrument or obligation to which
     Syncor or any of its subsidiaries is a party other than any that is,
     individually or in the aggregate, not a material note, bond, mortgage,
     indenture, deed of trust, license, contract, undertaking, agreement, lease
     or other instrument or obligation;

                                       A-11


          (c) violate any order, writ, injunction, decree, statute, rule or
     regulation applicable to Syncor or any of its subsidiaries or any of their
     respective properties or assets; or

          (d) require any action or consent or approval of, or review by, or
     registration or filing by Syncor or any of its affiliates with, any third
     party or any Governmental Authority, other than (i) approval of this
     Agreement by Syncor Stockholders, (ii) actions required by the HSR Act,
     (iii) registrations or other actions required under United States federal
     and state securities laws as are contemplated by this Agreement, (iv)
     filing of the Certificate of Merger, and (v) consents or approvals of any
     Governmental Authority set forth in Section 4.5 to the Syncor Disclosure
     Schedule;

except in the case of clause (b) above, which is set forth in Section 4.5(b) to
the Syncor Disclosure Schedule, and, in the case of clauses (c) and (d) above,
for any of the foregoing that would not, individually or in the aggregate, have
a Material Adverse Effect on Syncor or a material adverse effect on the ability
of the parties to this Agreement to consummate the transactions contemplated by
this Agreement.

     4.6. Brokerage and Finder's Fees.  Except for Syncor's obligations to
Salomon Smith Barney Inc. ("Salomon Smith Barney") (copies of all agreements
relating to such obligations having previously been provided to Cardinal), none
of Syncor or its subsidiaries, any of their respective affiliates or any
director, officer or employee of Syncor or its subsidiaries, has incurred or
will incur on behalf of Syncor or its subsidiaries, any brokerage, finder's,
financial advisory or similar fee in connection with the transactions
contemplated by this Agreement.

     4.7. Reorganization.  To the best knowledge of Syncor (including the
executive officers and directors of Syncor), after due investigation, neither
Syncor nor any of its affiliates has taken or agreed to take any action that
(without giving effect to any actions taken or agreed to be taken by Cardinal or
any of its affiliates) would prevent the Merger from constituting a
"reorganization" (within the meaning of Section 368(a) of the Code).

     4.8. Syncor SEC Documents.  Syncor has timely filed with the Commission all
forms, reports, schedules, statements and other documents required to be filed
by it since January 1, 1999 under the Exchange Act or the Securities Act (such
documents, as supplemented and amended since the time of filing, collectively,
the "Syncor SEC Documents"). The Syncor SEC Documents, including any financial
statements or schedules included in the Syncor SEC Documents, at the time filed
(and, in the case of registration statements and proxy statements, on the dates
of effectiveness and the dates of mailing, respectively, and, in the case of any
Syncor SEC Document amended or superseded by a filing prior to the date of this
Agreement, then on the date of such amending or superseding filing), (a) did not
contain any untrue statement of a material fact or omit to state a material fact
required to be stated therein or necessary in order to make the statements
therein, in light of the circumstances under which they were made, not
misleading, and (b) complied in all material respects with the applicable
requirements of the Exchange Act and the Securities Act, as the case may be. The
financial statements of Syncor included in the Syncor SEC Documents at the time
filed (and, in the case of registration statements and proxy statements, on the
dates of effectiveness and the dates of mailing, respectively, and, in the case
of any Syncor SEC Document amended or superseded by a filing prior to the date
of this Agreement, then on the date of such amending or superseding filing),
complied as to form in all material respects with applicable accounting
requirements and with the published rules and regulations of the Commission with
respect thereto, were prepared in accordance with GAAP applied on a consistent
basis during the periods involved (except as may be indicated in the notes
thereto, or, in the case of unaudited statements, as permitted by Form 10-Q of
the Commission), and fairly present in all material respects (subject, in the
case of unaudited statements, to normal, recurring audit adjustments) the
consolidated financial position of Syncor and its consolidated subsidiaries as
at the dates thereof and the consolidated results of their operations and cash
flows for the periods then ended. None of Syncor's subsidiaries is separately
subject to the periodic reporting requirements of the Exchange Act, or is
required to file separately any form, report or other document with the
Commission, The Nasdaq National Market, any stock exchange or any other
comparable Governmental Authority.

     4.9. Registration Statement; Proxy Statement.  None of the information
provided in writing by Syncor for inclusion in the Registration Statement, at
the time it becomes effective, or, in the case of the Proxy Statement, at the
date of mailing and at the date of the Syncor Stockholders Meeting, will contain
any untrue

                                       A-12


statement of a material fact or omit to state a material fact required to be
stated therein or necessary in order to make the statements therein, in light of
the circumstances under which they were made, not misleading. The Registration
Statement and Proxy Statement, except for such portions of the Registration
Statement and the Proxy Statement that relate only to Cardinal and its
subsidiaries, each will comply as to form in all material respects with the
provisions of the Securities Act and the Exchange Act.

     4.10. Compliance with Law.  Except as set forth in Section 4.10 to the
Syncor Disclosure Schedule, Syncor and its subsidiaries are in compliance, and
at all times since January 1, 1999 have been in compliance, with all Applicable
Laws relating to Syncor and its subsidiaries or their respective business or
properties, except where the failure to be in compliance with Applicable Laws,
individually or in the aggregate, would not reasonably be expected to have a
Material Adverse Effect on Syncor. Except as disclosed in Section 4.10 to the
Syncor Disclosure Schedule, no investigation or review by any Governmental
Authority with respect to Syncor and its subsidiaries are pending, or, to the
knowledge of Syncor, threatened, nor has any Governmental Authority indicated in
writing an intention to conduct the same, other than those the outcome of which
would not reasonably be expected to have a Material Adverse Effect on Syncor.

     4.11. Litigation.  Except as set forth in Section 4.11 to the Syncor
Disclosure Schedule, there is no Action pending, or, to the knowledge of Syncor,
threatened, against Syncor or its subsidiaries or any executive officer or
director of Syncor or its subsidiaries that, individually or in the aggregate,
would reasonably be expected to have a Material Adverse Effect on Syncor or a
material adverse effect on the ability of Syncor to consummate the transactions
contemplated by this Agreement. Neither Syncor nor its subsidiaries are subject
to any outstanding order, writ, injunction or decree specifically applicable to,
or having a disproportionate effect on, Syncor and its subsidiaries that,
individually or in the aggregate, would reasonably be expected to have a
Material Adverse Effect on Syncor or a material adverse effect on the ability of
Syncor to consummate the transactions contemplated by this Agreement. Except as
set forth in Section 4.11 to the Syncor Disclosure Schedule, since January 1,
1999, neither Syncor nor its subsidiaries, have been subject to any outstanding
material order, writ, injunction or decree relating to their respective method
of doing business or its relationship with past, existing or future users or
purchasers of any goods or services of Syncor or its subsidiaries.

     4.12. No Material Adverse Change.  Except as set forth in Section 4.12 to
the Syncor Disclosure Schedule, from March 31, 2002 through the date of this
Agreement, (a) the businesses of Syncor and its subsidiaries have been conducted
in all material respects in the ordinary course of business and (b) there has
been no Material Adverse Effect on Syncor or a material adverse effect on the
ability of Syncor to consummate the transactions contemplated by this Agreement.

     4.13. Taxes.  Except as set forth in Section 4.13 to the Syncor Disclosure
Schedule:

          (a) Syncor and its subsidiaries have duly filed all material United
     States federal, state and local and foreign income, franchise, excise, real
     and personal property and other Tax Returns (as defined in Section 4.13(i))
     (including those Tax Returns filed on a consolidated, combined or unitary
     basis) required to have been filed by Syncor or its subsidiaries prior to
     the date of this Agreement. All of the foregoing Tax Returns are true and
     correct (except for such inaccuracies that are, individually or in the
     aggregate, not material), and Syncor and its subsidiaries have, within the
     time and manner prescribed by Applicable Laws, paid or, prior to the
     Effective Time, will pay all material Taxes required to be paid in respect
     of the periods covered by such Tax Returns or otherwise due to any United
     States federal, state or local, foreign or other taxing authority.

          (b) Neither Syncor nor any of its subsidiaries has any material
     liability for any Taxes in excess of the amounts so paid or reserves so
     established, and neither Syncor nor any of its subsidiaries is delinquent
     in the payment of any material Tax. None of them has requested or filed any
     document having the effect of causing any extension of time within which to
     file any Tax Returns in respect of any fiscal year that have not since been
     filed. No deficiencies for any material Tax have been proposed in writing,
     asserted or assessed (tentatively or definitely), in each case, by any
     taxing authority, against Syncor or any of its subsidiaries for which there
     are not adequate reserves.

                                       A-13


          (c) Neither Syncor nor any of its subsidiaries is the subject of any
     currently ongoing Tax audit. As of the date of this Agreement, there are no
     pending requests for waivers of the time to assess any material Tax other
     than those made in the ordinary course and for which payment has been made
     or there are adequate reserves. With respect to any taxable period ended
     prior to December 31, 1998, all United States federal income Tax Returns
     including Syncor or any of its subsidiaries have been audited by the
     Internal Revenue Service or are closed by the applicable statute of
     limitations. Neither Syncor nor any of its subsidiaries has waived any
     statute of limitations in respect of Taxes or agreed to any extension of
     time with respect to a Tax assessment or deficiency. There are no liens
     with respect to Taxes upon any of the properties or assets, real or
     personal, or tangible or intangible, of Syncor or any of its subsidiaries
     (other than liens for Taxes not yet due or for which adequate reserves have
     been established). No claim has ever been made in writing by an authority
     in a jurisdiction where none of Syncor and its subsidiaries files Tax
     Returns that Syncor or any of its subsidiaries is or may be subject to
     taxation by that jurisdiction. Syncor has not filed an election under
     Section 341(f) of the Code to be treated as a consenting corporation.

          (d) Neither Syncor nor any of its subsidiaries is obligated by any
     contract, agreement or other arrangement to indemnify any other person with
     respect to material Taxes. Neither Syncor nor any of its subsidiaries are
     now or have ever been a party to or bound by any agreement or arrangement
     that (i) requires Syncor or any of its subsidiaries to make any Tax payment
     to or for the account of any other person, (ii) affords any other person
     the benefit of any net operating loss, net capital loss, investment Tax
     credit, foreign Tax credit, charitable deduction or any other credit or Tax
     attribute that could reduce Taxes (including deductions and credits related
     to alternative minimum Taxes) of Syncor or any of its subsidiaries, or
     (iii) requires or permits the transfer or assignment of income, revenues,
     receipts or gains to Syncor or any of its subsidiaries, from any other
     person.

          (e) Syncor has not constituted either a "distributing corporation" or
     a "controlled corporation" (within the meaning of Section 355(a)(1)(A) of
     the Code) in a distribution of stock intended to qualify for tax-free
     treatment under Section 355 of the Code (i) in the two years prior to the
     date of this Agreement (or will constitute such a corporation in the two
     years prior to the Closing Date) or (ii) in a distribution that otherwise
     constitutes part of a "plan" or "series of related transactions" (within
     the meaning of Section 355(e) of the Code) in conjunction with the Merger.

          (f) Syncor and its subsidiaries have withheld and paid all material
     Taxes required to have been withheld and paid in connection with amounts
     paid or owing to any employee, independent contractor, creditor,
     stockholder or other third party.

          (g) None of Syncor's foreign subsidiaries has been a member of any
     group that has filed a combined, consolidated or unitary Tax Return, other
     than such Tax Returns for which the period of assessment has expired
     (taking into account any extension or waiver thereof). None of Syncor's
     foreign subsidiaries is (i) engaged in a United States trade or business
     for United States federal income tax purposes, (ii) a "passive foreign
     investment company" or a "shareholder, directly or indirectly, in a passive
     foreign investment company" (within the meaning of the Code), or (iii) a
     "foreign investment company" (within the meaning of Section 1246(b) of the
     Code).

          (h) Syncor would not be required to include more than $500,000, in the
     aggregate, in gross income with respect to any of its foreign subsidiaries
     pursuant to Section 951 of the Code if the taxable year of each such
     foreign subsidiary were deemed to end on the Closing Date after the
     Effective Time.

          (i) "Tax Returns" means returns, reports and forms required to be
     filed with any Governmental Authority of the United States or any other
     jurisdiction responsible for the imposition or collection of Taxes.

          (j) "Taxes" means (i) all taxes (whether United States federal, state
     or local or foreign) based upon or measured by income and any other tax
     whatsoever, including gross receipts, profits, sales, use, occupation,
     value added, ad valorem, transfer, franchise, withholding, payroll,
     employment, excise, or property taxes, together with any interest or
     penalties imposed with respect thereto and (ii) any obligations under any
     agreements or arrangements with respect to any taxes described in clause
     (i) above.

                                       A-14


     4.14. Intellectual Property.  Set forth in Section 4.14 to the Syncor
Disclosure Schedule is a true and complete list of (i) all of Syncor's and its
subsidiaries' U.S. patents, trademark registrations and applications, and
copyright applications and registrations, in each case, material to the business
of Syncor and its subsidiaries taken as a whole as presently conducted, and (ii)
all material agreements to which Syncor or its subsidiaries are a party granting
or obtaining any rights under, or by their terms expressly restricting Syncor's
or any of its subsidiaries' rights to use, any Intellectual Property, other than
generic or standard agreements (including agreements for commercially-available,
off-the-shelf software) pursuant to which any such Intellectual Property is
licensed to Syncor or its subsidiaries. "Intellectual Property" means all
material intellectual property or other proprietary rights of every kind,
including all material United States or foreign patents, United States or
foreign patent applications, inventions (whether or not patentable), copyrighted
works, trade secrets, trademarks, trademark registrations and applications,
service marks, service mark registrations and applications, trade names, trade
dress, copyright registrations, customer lists, licenses of intellectual
property, and software, in each case, used in the business of Syncor or its
subsidiaries as presently conducted. Either Syncor or its subsidiaries own,
license or otherwise have the right to use the Intellectual Property free and
clear of any liens, claims or encumbrances as is necessary for the operation of
the business of Syncor or its subsidiaries, as the case may be, in substantially
the same manner as such business is presently conducted, except as set forth in
Section 4.14 to the Syncor Disclosure Schedule or except for failures to so own,
license or otherwise have the right to use that would not reasonably be
expected, individually or in the aggregate, to have a Material Adverse Effect on
Syncor. Except as set forth in Section 4.14 to the Syncor Disclosure Schedule,
(i) no written claim of invalidity or ownership with respect to any Intellectual
Property has been made by a third party, and, to the knowledge of Syncor, such
Intellectual Property is not the subject of any threatened or pending Action;
(ii) to the knowledge of Syncor, no individual or entity has asserted in writing
that, with respect to the Intellectual Property, Syncor or its subsidiaries or a
licensee of Syncor or its subsidiaries are infringing or has infringed any
United States or foreign patent, trademark, service mark, trade name, copyright
or other intellectual property right of any third party, or has misappropriated
or improperly used or disclosed any trade secret, confidential information or
know-how of any third party; (iii) to the knowledge of Syncor, the use of the
Intellectual Property by Syncor or its subsidiaries does not infringe in any
material respect any United States or foreign patent, trademark, service mark,
trade name, copyright or other intellectual property right of any third party,
and does not involve the misappropriation or improper use or disclosure of any
trade secrets, confidential information or know-how of any third party; and (iv)
except as would not reasonably be expected, individually or in the aggregate, to
have a Material Adverse Effect on Syncor, neither Syncor nor its subsidiaries
have taken any action that would result in the voiding or invalidation of any of
the Intellectual Property.

     4.15. Title to and Condition of Properties.  Syncor or its subsidiaries own
or hold under valid leases or other rights to use all real property, plants,
machinery and equipment necessary for the conduct of the business of Syncor and
its subsidiaries as presently conducted, except where the failure to own or hold
such property, plants, machinery and equipment would not have a Material Adverse
Effect on Syncor. Except as set forth in Section 4.15 to the Syncor Disclosure
Schedule, the material buildings, plants, machinery and equipment necessary for
the conduct of the businesses of Syncor and its subsidiaries as presently
conducted are structurally sound, are in good operating condition and repair and
are adequate for the uses to which they are being put, in each case, taken as a
whole, and none of such buildings, plants, machinery or equipment is in need of
maintenance or repairs, except for ordinary, routine maintenance and repairs
that are not material in nature or cost.

     4.16. Employee Benefit Plans.

     (a) For purposes of this Section 4.16, the following terms have the
definitions given below:

          "Controlled Group Liability" means any and all liabilities (i) under
     Title IV of ERISA (as defined below), (ii) under Section 302 of ERISA,
     (iii) under Sections 412 and 4971 of the Code, (iv) resulting from a
     violation of the continuation coverage requirements of Section 601 et seq.
     of ERISA and Section 4980B of the Code or the group health plan
     requirements of Sections 601 et seq. of the Code and Section 601 et seq.of
     ERISA, and (v) under corresponding or similar provisions of foreign laws or
     regulations, in each case, other than pursuant to the Plans (as defined
     below).

                                       A-15


          "ERISA" means the Employee Retirement Income Security Act of 1974, as
     amended, together with the rules and regulations thereunder.

          "ERISA Affiliate" means, with respect to any entity, trade or
     business, any other entity, trade or business that is a member of a group
     described in Section 414(b), (c), (m) or (o) of the Code or Section
     4001(b)(1) of ERISA that includes the first entity, trade or business, or
     that is a member of the same "controlled group" as the first entity, trade
     or business pursuant to Section 4001(a)(14) of ERISA.

          "Plans" means all employee benefit plans, programs and other
     arrangements providing benefits to any employee or former employee in
     respect of services provided to Syncor or to any beneficiary or dependent
     thereof, and whether covering one individual or more than one individual,
     sponsored or maintained by Syncor or any of its subsidiaries or to which
     Syncor or any of its subsidiaries contributes or is obligated to
     contribute. Without limiting the generality of the foregoing, the term
     "Plans" includes any defined benefit or defined contribution pension plan,
     profit sharing plan, stock ownership plan, deferred compensation agreement
     or arrangement, vacation pay, sickness, disability or death benefit plan
     (whether provided through insurance, on a funded or unfunded basis or
     otherwise), employee stock option or stock purchase plan, bonus or
     incentive plan or program, severance pay plan, agreement, arrangement or
     policy (including statutory severance and termination indemnity plans),
     practice or agreement, employment agreement, severance agreement,
     consulting agreements, retiree medical benefits plan and each other
     employee benefit plan, program or arrangement including each "employee
     benefit plan" (within the meaning of Section 3(3) of ERISA).

     (b) Section 4.16 to the Syncor Disclosure Schedule lists all Plans. With
respect to each Plan, Syncor has provided or made available to Cardinal a true,
correct and complete copy of the following (where applicable): (i) each writing
constituting a part of such Plan, including, without limitation, all plan
documents (including amendments), benefit schedules, trust agreements, and
insurance contracts and other funding vehicles; (ii) the three most recent
Annual Reports (Form 5500 Series) and accompanying schedules, if any; (iii) the
current summary plan description, if any; (iv) the most recent annual financial
report, if any; and (v) the most recent determination letter from the Internal
Revenue Service, if any. Except as disclosed in Section 4.16(b) to the Syncor
Disclosure Schedule, there are no amendments to any Plan that have been adopted
or approved nor has Syncor or any of its subsidiaries undertaken to make any
such amendments or to adopt or approve any new Plan, except as required by
Applicable Laws.

     (c) The Internal Revenue Service has issued a favorable determination
letter with respect to each Plan that is intended to be a "qualified plan"
(within the meaning of Section 401(a) of the Code) (a "Qualified Plan"), and all
applicable foreign qualifications or registration requirements have been
satisfied with respect to any Plan maintained outside the United States. To the
knowledge of Syncor, no circumstances exist that would reasonably be expected to
adversely affect the qualified status of any Qualified Plan or the related trust
or the qualified or registered status of any Plan or trust maintained outside
the United States.

     (d) All contributions required to be made by Syncor or any of its
subsidiaries or any of their respective ERISA Affiliates to any Plan by
Applicable Laws or by any plan document or other contractual undertaking, and
all premiums due or payable with respect to insurance policies funding any Plan,
for any period through the date of this Agreement have been timely made or paid
in full and through the Closing Date will be timely made or paid in full. To the
extent applicable, all Plans and related trusts maintained outside the United
States are fully funded and/or fully book reserved on a projected benefit
obligation basis in accordance with Applicable Laws and GAAP.

     (e) Syncor and its subsidiaries and their respective ERISA Affiliates have
complied, and are now in compliance, in all material respects, with all
provisions of ERISA, the Code and all laws and regulations (including any local
Applicable Laws) applicable to the Plans. Each Plan has been operated in
material compliance with its terms. There is not now, and, to the knowledge of
Syncor, there are no existing circumstances that would reasonably be expected to
give rise to, any requirement for the posting of security with respect to a Plan
or the imposition of any pledge, lien, security interest or encumbrance on the
assets of Syncor or any of its subsidiaries or any of their respective ERISA
Affiliates under ERISA or the Code, or similar Applicable Laws of foreign
jurisdictions.

                                       A-16


     (f) No Plan is subject to Title IV or Section 302 of ERISA or Section 412
or 4971 of the Code. No Plan is a "multiemployer plan" (within the meaning of
Section 4001(a)(3) of ERISA) (a "Multiemployer Plan") or a plan that has two or
more contributing sponsors at least two of whom are not under common control,
within the meaning of Section 4063 of ERISA (a "Multiple Employer Plan"), nor
has Syncor or any of its subsidiaries or any of their respective ERISA
Affiliates, at any time within six years before the date of this Agreement,
contributed to or been obligated to contribute to any Multiemployer Plan or
Multiple Employer Plan.

     (g) There does not now exist, and there are no existing circumstances that
would reasonably be expected to result in, any material Controlled Group
Liability that would be a liability of Syncor or any of its subsidiaries
following the Closing. Without limiting the generality of the foregoing, neither
Syncor nor any of its subsidiaries nor any of their respective ERISA Affiliates
has engaged in any transaction described in Section 4069 or Section 4204 of
ERISA.

     (h) Except for health continuation coverage as required by Section 4980B of
the Code or Part 6 of Title I of ERISA and except as set forth in Section
4.16(h) to the Syncor Disclosure Schedule, neither Syncor nor any of its
subsidiaries has any material liability for life, health, medical or other
welfare benefits to former employees or beneficiaries or dependents thereof. To
the knowledge of Syncor, there has been no communication to employees of Syncor
or its subsidiaries that would reasonably be expected or interpreted to promise
or guarantee such employees retiree health or life insurance benefits or other
retiree death benefits on a permanent basis.

     (i) Except as disclosed in Section 4.16(i) to the Syncor Disclosure
Schedule, neither the execution and delivery of this Agreement nor the
consummation of the transactions contemplated by this Agreement will result in,
cause the accelerated vesting or delivery of, or increase the amount or value
of, any payment or benefit to any employee, officer, director or consultant of
Syncor or any of its subsidiaries (either alone or in conjunction with any other
event). Without limiting the generality of the foregoing, except as set forth in
Section 4.16(i) to the Syncor Disclosure Schedule, no amount paid or payable by
Syncor or any of its subsidiaries in connection with the transactions
contemplated by this Agreement, either solely as a result thereof or as a result
of such transactions in conjunction with any other events, will be an "excess
parachute payment" (within the meaning of Section 280G of the Code).

     (j) Except as disclosed in Section 4.16(j) to the Syncor Disclosure
Schedule, there are no pending, or, to the knowledge of Syncor threatened,
Actions (other than claims for benefits in the ordinary course) that have been
asserted or instituted against the Plans, any fiduciaries thereof with respect
to their duties to the Plans or the assets of any of the trusts under any of the
Plans that would reasonably be expected to result in any material liability of
Syncor or any of its subsidiaries to the Pension Benefit Guaranty Corporation,
the United States Department of Treasury, the United States Department of Labor
or any Multiemployer Plan, or to comparable entities or Plans under Applicable
Laws of jurisdictions outside the United States.

     (k) Section 4.16(k) to the Syncor Disclosure Schedule sets forth the
liability of Syncor and its subsidiaries for deferred compensation under any
deferred compensation plan, excess plan or similar arrangement (other than
pursuant to Qualified Plans) to each director, officer and employee of Syncor
and to all other employees as a group, together with the value, as of the date
specified thereon, of the assets (if any) set aside in any grantor trust(s) to
fund such liabilities. Except (i) for compensation disclosed on Internal Revenue
Service Form W-2 for individuals whose compensation is not discussed in the
Syncor SEC Documents, (ii) for compensation paid or provided pursuant to any
Plan, (iii) except as specifically disclosed in the Syncor SEC Documents and
(iv) other than compensation for services provided in the ordinary course of
employment, no officer, director, or employee of Syncor or any of its other
affiliates, or any immediate family member of any of the foregoing, provides or
causes to be provided to Syncor any material assets, services or facilities, and
Syncor does not provide or cause to be provided to any such officer, director,
employee or affiliates, or any immediate family member of any of the foregoing,
any material assets, services or facilities.

     (l) Except as disclosed in Section 4.16(l) to the Syncor Disclosure
Schedule, no Plan is subject to the laws of any jurisdiction outside of the
United States.

                                       A-17


     (m) No disallowance of a deduction under Section 162(m) of the Code for
employee reimbursement of any amount paid or payable by Syncor or any of its
subsidiaries has occurred or is reasonably expected to occur.

     (n) The Syncor Employees' Savings and Stock Ownership Plan (the "ESOP") is
an "employee stock ownership plan" (within the meaning of Section 4975(e)(7) of
the Code). Neither Syncor (including any of its subsidiaries) nor the ESOP has
any outstanding indebtedness in connection with or with respect to the ESOP as
of the date of this Agreement.


     (o) All equity and equity-based compensation plans of Syncor and its
subsidiaries that are governed by the laws of a jurisdiction other than the
United States are in compliance with in all material respects and have been
administered in all material respects in accordance with all Applicable Laws.


     4.17. Contracts.  Section 4.17 to the Syncor Disclosure Schedule lists, as
of the date of this Agreement, all written or oral contracts, agreements,
guarantees, leases and executory commitments (other than Plans) (each, a
"Contract") to which Syncor or its subsidiaries are a party and that fall within
any of the following categories: (a) Contracts not entered into in the ordinary
course of Syncor's and its subsidiaries' business other than those that are not
material to Syncor's business or that of its subsidiaries, (b) joint venture,
partnership and similar agreements, (c) Contracts that are service contracts or
equipment leases involving payments by Syncor or its subsidiaries of more than
$750,000 per year, (d) Contracts containing covenants purporting by their
express terms to limit the freedom of Syncor or its subsidiaries to compete in
any line of business in any geographic area or to hire any individual or group
of individuals, (e) Contracts that, after the Effective Time, would have the
effect of limiting the freedom of Cardinal or its subsidiaries (other than
Syncor and its subsidiaries) to compete in any line of business in any
geographic area or to hire any individual or group of individuals, (f) Contracts
that contain minimum purchase conditions in excess of $750,000 or requirements
or other terms that restrict or limit the purchasing relationships of Syncor or
its affiliates, or any customer, licensee or lessee thereof, (g) Contracts
relating to any outstanding commitment for capital expenditures in excess of
$1,000,000, (h) Contracts relating to the lease or sublease of or sale or
purchase of real or personal property involving any annual expense or price in
excess of $500,000 and not cancelable by Syncor or its subsidiaries (without
premium or penalty) within 60 days, (i) Contracts with any labor organization or
union, (j) indentures, mortgages, promissory notes, loan agreements, guarantees
of borrowed money in excess of $500,000, letters of credit or other agreements
or instruments of Syncor or its subsidiaries or commitments for the borrowing or
the lending of amounts in excess of $500,000 by Syncor or its subsidiaries or
providing for the creation of any charge, security interest, encumbrance or lien
upon any of the assets of Syncor or its subsidiaries, (k) Contracts involving
annual revenues to the business of Syncor and its subsidiaries in excess of 2.5%
of the annual revenues of Syncor and its subsidiaries taken as a whole, (l)
Contracts providing for "earn-outs," "savings guarantees," "performance
guarantees" or other contingent payments by Syncor or its subsidiaries involving
more than $500,000 over the term of the Contract, (m) Contracts with or for the
benefit of any of Syncor's affiliates or immediate family member thereof (other
than Syncor's subsidiaries) involving more than $100,000 in the aggregate per
affiliate and (n) Contracts involving payments by Syncor or its subsidiaries of
more than $2,000,000 per year. All such Contracts and all other Contracts that
are material to the business or operations of Syncor and its subsidiaries taken
as a whole are valid and binding obligations of Syncor or its subsidiaries, as
the case may be, and, to the knowledge of Syncor, the valid and binding
obligation of each other party thereto, except such Contracts that, if not so
valid and binding, would not, individually or in the aggregate, have a Material
Adverse Effect on Syncor. As of the date of this Agreement, except for the
notice of non-renewal received on June 7, 2001 and except as set forth in
Section 4.17 to the Syncor Disclosure Schedule, neither Syncor nor its
subsidiaries have received an additional notice of non-renewal or a notice of
termination or any written indication of an intent to terminate the agreement
with Dupont Merck Pharmaceutical Company (and Bristol Myers-Squibb Co. ("BMS"),
as successor), dated December 19, 1993, as amended (prior to the date of this
Agreement) (the "BMS Contract") nor, to the knowledge of Syncor, has BMS
indicated that it is generally not willing to continue the relationship with
Syncor and its subsidiaries on substantially the same terms as it is presently
conducted. Neither Syncor or its subsidiaries, nor, to the knowledge of Syncor,
any other party thereto, is in violation of or in default in respect of, nor has
there occurred an event or condition, that with the passage of time or giving of

                                       A-18


notice (or both), would constitute a default under or permit the termination of,
any such Contract or of any other Contract that is material to the business or
operations of Syncor and its subsidiaries taken as a whole, except such
violations or defaults under or terminations that, individually or in the
aggregate, would not have a Material Adverse Effect on Syncor.

     4.18. Labor Matters.  Except as set forth in Section 4.18 to the Syncor
Disclosure Schedule, neither Syncor nor its subsidiaries have any labor
contracts or collective bargaining agreements with any individuals employed by
Syncor or its subsidiaries or any individuals otherwise performing services
primarily for Syncor or its subsidiaries. There is no labor strike, dispute or
stoppage pending, or, to the knowledge of Syncor, threatened, against Syncor or
its subsidiaries, and neither Syncor nor any of its subsidiaries has experienced
any labor strike, dispute or stoppage or other material labor difficulty
involving its employees since January 1, 1999. To the knowledge of Syncor, since
January 1, 1999, no campaign or other attempt for recognition has been made by
any labor organization or employees with respect to employees of Syncor or any
of its subsidiaries.

     4.19. Undisclosed Liabilities.  Except (a) as and to the extent disclosed
or reserved against on the balance sheet of Syncor as of March 31, 2002 included
in the Syncor SEC Documents, (b) as incurred after the date thereof in the
ordinary course of business consistent with prior practice, and, if incurred
after the date of this Agreement, not prohibited by this Agreement, or (c) as
set forth in Section 4.19 to the Syncor Disclosure Schedule, Syncor and its
subsidiaries do not have any liabilities or obligations of any nature, whether
known or unknown, absolute, accrued, contingent or otherwise and whether due or
to become due, that, individually or in the aggregate, have or would reasonably
be expected to have a Material Adverse Effect on Syncor.

     4.20. Operation of Syncor's Business; Relationships.

     (a) Except as set forth in Section 4.20(a) to the Syncor Disclosure
Schedule, since March 31, 2002 through the date of this Agreement, neither
Syncor nor any of its subsidiaries have engaged in any transaction that, if done
after execution of this Agreement, would violate Section 5.3(c).

     (b) Except as set forth in Section 4.20(b) to the Syncor Disclosure
Schedule, since March 31, 2002, as of the date of this Agreement, to the
knowledge of Syncor, no material customer of Syncor or any of its subsidiaries
has indicated that it will stop or materially decrease purchasing materials,
products or services from Syncor or its subsidiaries, and no material supplier
of Syncor or its subsidiaries has indicated that it will stop or materially
decrease the supply of materials, products or services to Syncor or its
subsidiaries or is otherwise involved in, or is threatening, a material dispute
with Syncor or its subsidiaries.

     4.21. Permits; Compliance.

     (a) Syncor and its subsidiaries are in possession of all material
franchises, grants, authorizations, licenses, permits, easements, variances,
exemptions, consents, certificates, approvals and orders necessary to own, lease
and operate its properties and to carry on its business substantially in the
same manner as it is now being conducted (collectively, the "Syncor Permits"),
and there is no Action pending, or, to the knowledge of Syncor, threatened,
regarding any of the Syncor Permits, except for any Actions that, individually
or in the aggregate, would not reasonably be expected to have a Material Adverse
Effect on Syncor. Except as set forth in Section 4.21(a) to the Syncor
Disclosure Schedule, neither Syncor nor any of its subsidiaries is in conflict
with, or in default or violation of any of the Syncor Permits, except for any
such conflicts, defaults or violations that, individually or in the aggregate,
would not reasonably be expected to have a Material Adverse Effect on Syncor.

     (b) Except as set forth in Section 4.21(b) to the Syncor Disclosure
Schedule or as would not, individually or in the aggregate, reasonably be
expected to have a Material Adverse Effect on Syncor, all necessary clearances
or approvals from Governmental Authorities for all drug and device products that
are manufactured, distributed and/or sold by Syncor and its subsidiaries have,
to the knowledge of Syncor, been obtained, and Syncor and its subsidiaries are
in substantial compliance with the most current form of each applicable
clearance or approval with respect to the manufacture, storage, transportation,
distribution, promotion and sale by Syncor and its subsidiaries of such drug and
device products.

                                       A-19


     4.22. Environmental Matters.  Except for matters disclosed in Section 4.22
to the Syncor Disclosure Schedule, (a) the properties, operations and activities
of Syncor and its subsidiaries are in compliance in all material respects with
all applicable Environmental Laws (as defined below) and all past material
noncompliance of Syncor or any of its subsidiaries with any Environmental Laws
or Environmental Permits (as defined below) has been resolved without any
pending, ongoing or future material obligation, cost or liability; (b) Syncor
and its subsidiaries and the properties and operations of Syncor and its
subsidiaries are not subject to any existing, pending, or, to the knowledge of
Syncor, threatened, Action by or before any court or Governmental Authority
under any Environmental Law; (c) there has been no material release of any
Hazardous Material (as defined below) into the environment by Syncor or its
subsidiaries or in connection with their current or former properties or
operations; and (d) there has been no material exposure of any person or
property to any Hazardous Material in connection with the current or former
properties, operations and activities of Syncor and its subsidiaries.
"Environmental Laws" means all United States federal, state or local or foreign
laws relating to pollution or protection of human health or the environment
(including ambient air, surface water, groundwater, land surface or subsurface
strata), including laws relating to emissions, discharges, releases or
threatened releases of chemicals, pollutants, contaminants, or industrial, toxic
or hazardous substances or wastes (collectively, "Hazardous Materials") into the
environment, or otherwise relating to the manufacture, processing, distribution,
use, treatment, storage, disposal, transport or handling of Hazardous Materials,
as well as all material authorizations, codes, decrees, demands or demand
letters, injunctions, judgments, licenses, notices, orders, permits, plans or
regulations issued, entered, promulgated or approved thereunder. "Environmental
Permit" means any permit, approval, grant, consent, exemption, certificate
order, easement, variance, franchise, license or other authorization required
under or issued pursuant to any applicable Environmental Law.

     4.23. Insurance.  Section 4.23 to the Syncor Disclosure Schedule lists all
material insurance policies and binders and programs of self-insurance owned,
held or maintained by Syncor and its subsidiaries on the date this Agreement
that afford or afforded, as the case may be, coverage to Syncor or its
subsidiaries, or the respective assets or businesses of Syncor or its
subsidiaries. Syncor's and its subsidiaries' insurance policies are in all
material respects in full force and effect in accordance with their terms, no
notice of cancellation has been received, and there is no existing default or
event that, with the giving of notice or lapse of time or both, would constitute
a default thereunder. All premiums under Syncor's and its subsidiaries'
insurance policies have been paid in full to date. Syncor and its subsidiaries
have not been refused any insurance, nor has the coverage of Syncor or any of
its subsidiaries been limited, by any insurance carrier to which it has applied
for insurance or with which it has carried insurance during the past three
years. Syncor or its covered subsidiary is a "named insured" or an "insured"
under such insurance policies. Except as set forth in Section 4.23 to the Syncor
Disclosure Schedule, the policies of fire, theft, liability and other insurance
maintained with respect to the assets or businesses of Syncor and its
subsidiaries may be continued by Syncor or its subsidiaries, as the case may be,
without modification or premium increase after the Effective Time and for the
duration of their current terms, which terms expire as set forth in Section 4.23
to the Syncor Disclosure Schedule. Set forth in Section 4.23 to the Syncor
Disclosure Schedule is the amount of the annual premium currently paid by Syncor
for its directors' and officers' liability insurance.

     4.24. Opinion of Financial Advisor.  The Board of Directors of Syncor has
received the oral opinion, to be confirmed in writing, of Salomon Smith Barney,
Syncor's financial advisor, to the effect that, as of the date of this
Agreement, the Exchange Ratio is fair to the holders of Syncor Common Stock from
a financial point of view. Syncor will provide a written copy of such opinion to
Cardinal solely for informational purposes promptly after receipt by Syncor of
such opinion, and, on the date of this Agreement, such opinion has not been
withdrawn or revoked or otherwise modified in any material respect.

     4.25. Board Recommendation; Required Vote.  The Board of Directors of
Syncor, at a meeting duly called and held, has, by unanimous vote of those
directors present (who constituted 100% of the directors then in office), (a)
determined, that this Agreement and the transactions contemplated by this
Agreement, including the Merger, are advisable and fair to and in the best
interests of the Syncor Stockholders, and (b) resolved, as of the date of this
Agreement, to recommend that the Syncor Stockholders approve this Agreement (the
"Syncor Board Recommendation"). The affirmative vote of holders of a majority of
the

                                       A-20


outstanding shares of Syncor Common Stock to approve this Agreement is the only
vote of the holders of any class or series of Syncor Common Stock necessary to
approve this Agreement and the transactions contemplated by this Agreement.

     4.26. Section 203 of the DGCL; Rights Agreement.  Prior to the date of this
Agreement, the Board of Directors of Syncor has taken all action necessary to
exempt under or make not subject to (a) the provisions of Section 203 of the
DGCL and (b) any other state takeover law or state law that purports to limit or
restrict business combinations or the ability to acquire or vote shares: (i) the
execution of this Agreement and the Support/Voting Agreements, dated as of June
14, 2002, between Cardinal and certain Syncor Stockholders (collectively, the
"Support Agreements"), (ii) the Merger and (iii) the transactions contemplated
by this Agreement and the Support Agreements. The Rights Agreement, dated as of
September 28, 1999, by and between Syncor and American Stock Transfer and Trust
Company, as Rights Agent (the "Syncor Rights Agreement"), has been amended so
that (a) each of Cardinal and Subcorp is exempt from the definition of
"Acquiring Person" (as defined in the Syncor Rights Agreement), (b) no "Stock
Acquisition Date," "Distribution Date" or "Triggering Event" (as such terms are
defined in the Syncor Rights Agreement) will occur as a result of the execution
of this Agreement or the consummation of the Merger pursuant to this Agreement
and (c) the Syncor Rights Agreement will expire immediately prior to the
Effective Time. The Syncor Rights Agreement, as amended in accordance with the
preceding sentence, has not been further amended or modified. Copies of all such
amendments to the Syncor Rights Agreement have been previously provided to
Cardinal.

                                   ARTICLE V.

                            COVENANTS OF THE PARTIES

     The parties to this Agreement agree that:

     5.1. Mutual Covenants.

     (a) HSR Act Filings; Reasonable Efforts; Notification.

          (i) Each of Cardinal and Syncor shall (A) make or cause to be made the
     filings required of such party to this Agreement or any of its subsidiaries
     or affiliates under the HSR Act with respect to the transactions
     contemplated by this Agreement as promptly as practicable and in any event
     the initial filing with respect to this Agreement shall be made within ten
     business days after the date of this Agreement, (B) comply at the earliest
     practicable date with any request under the HSR Act for additional
     information, documents, or other materials received by such party to this
     Agreement or any of its subsidiaries from the United States Federal Trade
     Commission or the United States Department of Justice or any other
     Governmental Authority in respect of such filings or such transactions, and
     (C) act in good faith and reasonably cooperate with the other party in
     connection with any such filing (including, with respect to the party
     making a filing, providing copies of all such documents to the non-filing
     party and its advisors reasonably prior to filing and, if requested, to
     accept all reasonable additions, deletions or changes suggested in
     connection therewith) and in connection with resolving any investigation or
     other inquiry of any such agency or other Governmental Authority under any
     Antitrust Laws (as defined in Section 5.1(a)(ii)) with respect to any such
     filing or any such transaction. To the extent not prohibited by Applicable
     Laws, each party to this Agreement shall use all reasonable best efforts to
     furnish to each other all information required for any application or other
     filing to be made pursuant to any Applicable Laws in connection with the
     Merger and the other transactions contemplated by this Agreement. Each
     party to this Agreement shall give the other parties to this Agreement
     reasonable prior notice of any communication with, and any proposed
     understanding, undertaking, or agreement with, any Governmental Authority
     regarding any such filings or any such transaction. None of the parties to
     this Agreement shall independently participate in any meeting, or engage in
     any substantive conversation, with any Governmental Authority in respect of
     any such filings, investigation, or other inquiry without giving the other
     parties to this Agreement prior notice of the meeting or conversation and,
     unless prohibited by such Governmental Authority, the opportunity to attend
     and/or participate. The parties to this Agreement will

                                       A-21


     consult and cooperate with one another, in connection with any analyses,
     appearances, presentations, memoranda, briefs, arguments, opinions and
     proposals made or submitted by or on behalf of any party to this Agreement
     in connection with proceedings under or relating to the HSR Act or other
     Antitrust Laws.


          (ii) Subject to clause (iv) below, each of Cardinal and Syncor shall
     use its reasonable best efforts to resolve such objections, if any, as may
     be asserted by any Governmental Authority with respect to the transactions
     contemplated by this Agreement under the HSR Act, the Sherman Act, as
     amended, the Clayton Act, as amended, the Federal Trade Commission Act, as
     amended, and any other United States federal or state or foreign statutes,
     rules, regulations, orders, decrees, administrative or judicial doctrines
     or other laws that are designed to prohibit, restrict or regulate actions
     having the purpose or effect of monopolization or restraint of trade
     (collectively, "Antitrust Laws"). In connection therewith and subject to
     clause (iv) below, if any administrative or judicial action or proceeding
     is instituted (or threatened to be instituted) challenging any transaction
     contemplated by this Agreement as inconsistent with or violative of any
     Antitrust Law, each of Cardinal and Syncor shall (by negotiation,
     litigation or otherwise) cooperate and use its reasonable best efforts
     vigorously to contest and resist any such action or proceeding, including
     any legislative, administrative or judicial action, and to have vacated,
     lifted, reversed, or overturned any decree, judgment, injunction or other
     order whether temporary, preliminary or permanent, that is in effect and
     that prohibits, prevents, delays or restricts consummation of the Merger or
     any other transactions contemplated by this Agreement, including by
     vigorously pursuing all available avenues of administrative and judicial
     appeal and all available legislative action, unless, by mutual agreement,
     Cardinal and Syncor decide that litigation is not in their respective best
     interests. Notwithstanding the foregoing or any other provision of this
     Agreement, nothing in this Section 5.1(a) shall limit the right of a party
     to this Agreement to terminate this Agreement pursuant to Section 7.1, so
     long as such party to this Agreement has up to then complied in all
     material respects with its obligations under this Section 5.1(a). Each of
     Cardinal and Syncor shall use its reasonable best efforts to take such
     action as may be required to cause the expiration of the notice periods
     under the HSR Act or other Antitrust Laws with respect to such transactions
     as promptly as possible after the execution of this Agreement.


          (iii) Subject to clause (iv) below, each of the parties to this
     Agreement agrees to use reasonable best efforts to take, or cause to be
     taken, all actions, and to do, or cause to be done, and to assist and
     cooperate with the other parties to this Agreement in doing, all things
     necessary, proper or advisable to consummate and make effective, in the
     most expeditious manner practicable, the Merger and the other transactions
     contemplated by this Agreement, including (A) the obtaining of all other
     necessary actions or nonactions, waivers, consents, licenses, permits,
     authorizations, orders and approvals from Governmental Authorities and the
     making of all other necessary registrations and filings (including other
     filings with Governmental Authorities, if any), (B) the obtaining of all
     consents, approvals or waivers from third parties related to or required in
     connection with the Merger that are necessary to consummate the Merger and
     the transactions contemplated by this Agreement or required to prevent a
     Material Adverse Effect on Cardinal or Syncor from occurring prior to or
     after the Effective Time, (C) the preparation of the Proxy Statement, and
     the Registration Statement, (D) the execution and delivery of any
     additional instruments reasonably necessary to consummate the transactions
     contemplated by, and to fully carry out the purposes of, this Agreement,
     and (E) the providing of all such information concerning such party, its
     subsidiaries, its affiliates and its subsidiaries' and affiliates'
     officers, directors, employees and partners as may be reasonably requested
     in connection with any of the matters set forth in subclauses (i)-(ii)
     above or this subclause (iii).

          (iv) Cardinal and its subsidiaries, and, at the request of Cardinal,
     Syncor and its subsidiaries, shall agree to hold separate (including by
     trust or otherwise) or to divest, dispose of, discontinue or assign any of
     their respective businesses, subsidiaries or assets, or to take or agree to
     take any action with respect to (including without limitation, to license
     or sublicense or to renegotiate in each case on commercially reasonable
     terms any arrangement or agreement regarding), or agree to any limitation
     on, any of their respective businesses, subsidiaries or assets (or any
     interest in the foregoing) (collectively, "Limitations"); provided that any
     such Limitation is conditioned upon the consummation of the Merger, and the

                                       A-22


     failure of such Limitation, when taken together with any other Limitations,
     to have, in the aggregate, a Regulatory Material Adverse Effect on Cardinal
     or a Regulatory Material Adverse Effect on Syncor (as defined below).
     Syncor agrees and acknowledges that, notwithstanding anything to the
     contrary in this Section 5.1(a), neither Syncor nor any of its subsidiaries
     shall, without Cardinal's prior written consent, agree to any Limitations
     or make or agree to make any cash payments to any suppliers or customers of
     Cardinal or Syncor (or their respective subsidiaries) in connection with
     its obligations under this Section 5.1(a). Notwithstanding anything to the
     contrary in this Agreement, Cardinal and its subsidiaries shall not be
     required to agree to any Limitations (including making cash payments to
     suppliers or customers) with respect to Cardinal and any of its
     subsidiaries and/or Syncor and any of its subsidiaries that would
     reasonably be expected, in the aggregate, to have a Regulatory Material
     Adverse Effect on Cardinal or a Regulatory Material Adverse Effect on
     Syncor. For purposes of this Section 5.1(a), a "Regulatory Material Adverse
     Effect" shall be deemed to have occurred if there are Limitations that
     would deprive Cardinal of the ownership or operation of, or the economic
     benefits (including the making of cash payments) of owning or operating,
     assets, subsidiaries or businesses of Cardinal and any of its subsidiaries
     and/or Syncor and any of its subsidiaries that generated, in the aggregate,
     2001 calendar year revenues equal to 8.25% or more of the total 2001
     calendar year revenues of Syncor and its subsidiaries.

     (b) Tax-Free Treatment.  Each of the parties to this Agreement shall use
all reasonable best efforts to cause the Merger to constitute a "reorganization"
(within the meaning of Section 368(a) of the Code) and to cooperate with the
other and provide such documentation, information and materials as may be
reasonably necessary, proper and advisable, including in obtaining an opinion
from Skadden, Arps, Slate, Meagher & Flom LLP, counsel to Syncor, as provided
for in Section 6.1(g). In connection therewith, each of Cardinal and Syncor
shall deliver to Skadden, Arps, Slate, Meagher & Flom LLP representation
letters, in each case, in form and substance reasonably satisfactory to Skadden,
Arps, Slate, Meagher & Flom LLP, which such counsel may rely on in rendering
such opinion.

     (c) Public Announcements.  The initial press release concerning the Merger
and the transactions contemplated by this Agreement shall be a joint press
release. Unless otherwise required by Applicable Laws or requirements of the
NYSE or The Nasdaq National Market (and, in that event, only if time does not
permit), at all times prior to the earlier of the Effective Time or termination
of this Agreement pursuant to Section 7.1, Cardinal and Syncor shall consult
with each other before issuing any press release with respect to the Merger and
shall not issue any such press release prior to such consultation.

     (d) Obligations of Cardinal and of Syncor.  Whenever this Agreement
requires any of Cardinal's subsidiaries (including Subcorp) to take any action,
such requirement shall be deemed to include an undertaking on the part of
Cardinal to cause its subsidiaries to take such action. Whenever this Agreement
requires any of Syncor's subsidiaries to take any action, such requirement shall
be deemed to include an undertaking on the part of Syncor to cause its
subsidiaries to take such action, and, after the Effective Time, on the part of
the Cardinal and the Surviving Corporation to cause such subsidiary to take such
action.

     (e) Conveyance Taxes.  Cardinal, Subcorp and Syncor shall cooperate in the
preparation, execution and filing of all returns, questionnaires, applications
or other documents regarding any real property transfer or gains, sales, use,
transfer, value added, stock transfer or stamp Taxes, any transfer, recording,
registration or other fees or any similar Taxes that become payable in
connection with the transactions contemplated by this Agreement that are
required or permitted to be filed on or before the Effective Time. All such
Taxes shall be paid by the party bearing legal responsibility for such payment.

     5.2. Covenants of Cardinal.

     (a) Preparation of Registration Statement.  Cardinal and Syncor shall use
all reasonable efforts to prepare the Proxy Statement for filing with the
Commission at the earliest practicable time. The Syncor Stockholders Meeting
shall be called for the earliest practicable date as determined by Syncor in
consultation with Cardinal. Cardinal shall prepare and file the Registration
Statement with the Commission as soon as is reasonably practicable following
clearance of the Proxy Statement by the Commission, and shall use reasonable
best efforts to have the Registration Statement declared effective by the
Commission as promptly as practicable and to maintain the effectiveness of the
Registration Statement through the Effective Time. If,

                                       A-23


at any time prior to the Effective Time, Cardinal shall obtain knowledge of any
information pertaining to Cardinal contained in or omitted from the Registration
Statement that would require an amendment or supplement to the Registration
Statement or the Proxy Statement, Cardinal will so advise Syncor in writing and
will promptly take such action as shall be required to amend or supplement the
Registration Statement and/or the Proxy Statement. Cardinal shall promptly
furnish to Syncor all information concerning it as may be required for amending
or supplementing the Proxy Statement. Syncor and Cardinal shall use reasonable
best efforts in clearing the Proxy Statement with the Staff of the Commission.
Cardinal also shall take such other reasonable actions (other than qualifying to
do business in any jurisdiction in which it is not so qualified) required to be
taken under any applicable state securities laws in connection with the issuance
of Cardinal Common Shares in the Merger and upon the exercise of the Cardinal
Exchange Options. No filing of, or amendment or supplement to, the Registration
Statement or the Proxy Statement will be made by Cardinal or Syncor without
providing the other with a reasonable opportunity to review and comment thereon.
Cardinal will advise Syncor, promptly after it receives notice thereof, of the
time when the Registration Statement has become effective or any supplement or
amendment has been filed, the issuance of any stop order, the suspension of the
qualification of the Cardinal Common Shares issuable in connection with the
Merger for offering or sale in any jurisdiction, or any request by the
Commission for amendment of the Proxy Statement or the Registration Statement or
comments on the Proxy Statement or the Registration Statement and responses
thereto or requests by the Commission for additional information.

     (b) Conduct of Cardinal's Operations.  During the period from the date of
this Agreement to the Effective Time or to the date, if any, on which this
Agreement is earlier terminated pursuant to Section 7.1, without the prior
consent of Syncor (which consent will not be unreasonably withheld or delayed),
and except as otherwise (i) contemplated by this Agreement, (ii) required by
Applicable Laws (it being understood that, insofar as less than 100% of the
equity of any of Cardinal's subsidiaries is owned, directly or indirectly, by
Cardinal, nothing in this Section 5.2(b) shall be deemed to require any such of
Cardinal's subsidiaries to take any action, or fail to take any action, which
action or failure would result in a violation of fiduciary duty under Applicable
Laws) or (iii) set forth in Section 5.2(b) to the Cardinal Disclosure Schedule,
Cardinal covenants and agrees that:

          (A) Cardinal and its subsidiaries shall continue to operate their
     businesses in the ordinary course and shall use their respective reasonable
     best efforts to preserve their respective business organizations intact;
     provided that Cardinal and its subsidiaries may take any action or omit to
     take any action, to the extent permitted by this Agreement (whether or not
     such action or omission would be considered taken in the ordinary course);

          (B) Cardinal shall not amend or propose to amend the Cardinal Articles
     to provide for the issuance of additional classes of capital stock of
     Cardinal having superior rights to the Cardinal Common Shares;

          (C) Cardinal shall not, and shall not permit any of its subsidiaries
     to, make any acquisition of securities, assets or business primarily
     involved in the industries in which Syncor operates or that supplies the
     radiopharmacy businesses in which Syncor operates (whether by merger,
     consolidation, purchase or otherwise) that would reasonably be expected to
     cause a meaningful delay or impediment to the completion of the
     transactions contemplated by this Agreement or might reasonably be expected
     to have a Material Adverse Effect on Cardinal; and

          (D) Cardinal shall not, and shall not permit any of its subsidiaries
     to, agree, in writing or otherwise, to propose or take any of the foregoing
     actions.

Notwithstanding the foregoing, the limitations set forth in this Section 5.2(b)
shall not apply to any transaction between Cardinal and any of its wholly owned
subsidiaries or between any of Cardinal's wholly owned subsidiaries.

     (c) Indemnification; Directors' and Officers' Insurance.

          (i) From and after the Effective Time, Cardinal shall cause (including
     by providing adequate funding to) the Surviving Corporation (or any
     successor to the Surviving Corporation) to indemnify and hold harmless the
     present and former officers and directors of Syncor in respect of acts or
     omissions

                                       A-24


     occurring at or prior to the Effective Time to the extent provided under
     the Syncor Certificate or the Syncor By-laws as in effect as of the date of
     this Agreement or the indemnification agreements between Syncor and its
     directors listed in Section 6.2(a)(i) to the Syncor Disclosure Schedule, as
     such indemnification agreements are in effect as of the date of this
     Agreement. Without limiting the foregoing, such indemnifying parties also
     shall advance any costs or expenses as incurred by such indemnified parties
     to the fullest extent permitted by Applicable Laws. In addition, from and
     after the Effective Time, officers of Syncor or its subsidiaries who become
     officers of Cardinal or its subsidiaries will be entitled to the same
     indemnity rights and protections as are afforded to similarly situated
     officers of Cardinal or its subsidiaries.

          (ii) Cardinal shall or shall cause the Surviving Corporation to obtain
     and maintain in effect, for a period of six years after the Effective Time,
     policies of directors' and officers' liability insurance at no cost to the
     beneficiaries thereof with respect to acts or omissions occurring at or
     prior to the Effective Time with substantially the same coverage and
     containing substantially similar terms and conditions as existing policies;
     provided, however, that neither the Surviving Corporation nor Cardinal
     shall be required to pay an aggregate premium for such insurance coverage
     in excess of 200% of the amount for such coverage set forth in Section 4.23
     to the Syncor Disclosure Schedule, but in such case shall purchase as much
     coverage as reasonably practicable for 200% of the amount set forth in
     Section 4.23 to the Syncor Disclosure Schedule, and, provided, further,
     that any substitution or replacement of existing policies shall not result
     in any gaps or lapses in coverage with respect to facts, events, acts or
     omissions occurring at or prior to the Effective Time.

          (iii) It is expressly agreed that the indemnified parties (including
     their heirs and representatives) to whom this Section 5.2(c) applies shall
     be third-party beneficiaries of this Section 5.2(c). The provisions of this
     Section 5.2(c) are intended to be for the benefit of, and will be
     enforceable by such third-party beneficiaries.

     (d) Subcorp.  Prior to the Effective Time, Subcorp shall not conduct any
business or make any investments other than as specifically contemplated by this
Agreement and will not have any assets (other than a de minimis amount of cash
paid to Subcorp for the issuance of Subcorp Common Stock to Cardinal) or any
material liabilities.

     (e) NYSE Listing.  Cardinal shall use its reasonable best efforts to cause
Cardinal Common Shares issuable pursuant to the Merger or upon the exercise of
Cardinal Exchange Options to be approved for listing on the NYSE, subject to
official notice of issuance, prior to the Effective Time.

     (f) Employees and Employee Benefits.

          (i) Cardinal shall use its reasonable best efforts to make the Syncor
     Employees (as defined below) eligible to participate in Cardinal employee
     benefit plans not later than July 1, 2003. Without limiting the foregoing,
     from and after the Effective Time and until July 1, 2003, Cardinal shall
     provide Syncor Employees with employee benefit plans, programs, contracts
     or arrangements that, in the aggregate, will provide benefits that are not
     materially less favorable in the aggregate than the benefits provided to
     such Syncor Employees under the Plans (except for Plans providing equity or
     equity-based compensation) in effect on the date of this Agreement in
     accordance with the terms of such employee benefit plans, programs,
     contracts or arrangements, it being understood that, except as otherwise
     provided by this Agreement, the foregoing shall not require Cardinal or the
     Surviving Corporation to maintain any particular Plan. Syncor Employees
     shall be entitled to participate in the applicable Cardinal equity and
     equity-based plans (except for the Syncor ESPP (as defined below)) from and
     after the Effective Time in accordance with the terms of the applicable
     Cardinal equity and equity-based plans. From and after the Effective Time,
     Cardinal shall treat all service by Syncor Employees with Syncor and their
     respective predecessors prior to the Effective Time for all purposes as
     service with Cardinal (except for purposes of benefit accrual under defined
     benefit pension plans or to the extent such treatment would result in
     duplicative accrual on or after the Closing Date of benefits for the same
     period of service or to the extent such service is prior to a specific date
     before which service would not have been credited for employees of
     Cardinal), and, with respect to any medical or dental benefit plan in which
     Syncor Employees participate

                                       A-25


     after the Effective Time, Cardinal shall waive or cause to be waived any
     preexisting condition exclusions and actively-at-work requirements
     (provided, however, that no such waiver shall apply to a preexisting
     condition of any Syncor Employee who was, as of the Effective Time,
     excluded from participation in a Plan by virtue of such pre-existing
     condition), and shall provide that any covered expenses incurred on or
     before the Effective Time during the plan year of the applicable Plan in
     which the Effective Time occurs by a Syncor Employee or a Syncor Employee's
     covered dependent shall be taken into account for purposes of satisfying
     applicable deductible, coinsurance and maximum out-of-pocket provisions
     after the Effective Time to the same extent as such expenses are taken into
     account for the benefit of similarly situated employees of Cardinal and
     subsidiaries of Cardinal. For purposes of this Section 5.2(f), "Syncor
     Employees" means individuals who are, as of the Effective Time, employees
     of Syncor that are not subject to collective bargaining agreements for as
     long as they remain employees of Cardinal and its subsidiaries.

          (ii) Cardinal and Syncor agree that each of their respective option
     and other equity-incentive plans shall be amended, if and to the extent
     necessary, to reflect the transactions contemplated by this Agreement,
     including, but not limited to, the conversion of shares of Syncor Common
     Stock held or to be awarded or paid pursuant to such benefit plans,
     programs or arrangements into Cardinal Common Shares on a basis consistent
     with the transactions contemplated by this Agreement.

          (iii) As soon as reasonably practicable after the Effective Time,
     Cardinal shall deliver to the holders of Syncor Options appropriate notices
     setting forth such holders' rights pursuant to the respective Plans
     governing such Syncor Options and the agreements evidencing the grants of
     such Syncor Options, and that such Syncor Options and the related
     agreements shall be assumed by Cardinal and shall continue in effect on the
     same terms and conditions (subject to the adjustments required by Section
     2.4 after giving effect to the Merger).

          (iv) From and after the Effective Time, Cardinal shall, or shall cause
     the Surviving Corporation to, assume and honor all Plans; provided,
     however, nothing in this Agreement shall restrict Cardinal's or the
     Surviving Corporation's ability to amend or terminate such Plans in
     accordance with their terms. Cardinal and Syncor agree that the shareholder
     approval or the consummation of the Merger, as applicable, shall constitute
     a "Change in Control" for all purposes of the Plans identified and set
     forth in Section 4.16 to the Syncor Disclosure Schedule; provided, however,
     Cardinal and Syncor intend that none of the shareholder approval,
     consummation of the Merger or any transactions contemplated by this
     Agreement will constitute a "Change of Control" for purposes of the
     agreements set forth on Schedule 5.2(f)(iv) to the Syncor Disclosure
     Schedule.

          (v) With respect to the Syncor International Corporation Employee
     Stock Purchase Plan (the "Syncor ESPP"), Syncor shall take all actions
     necessary to (A) terminate all open offering periods under the Syncor ESPP
     as of a date no later than the end of its last regularly occurring payroll
     period prior to the Effective Time and (B) terminate the Syncor ESPP as of
     a date no later than immediately prior to the Effective Time.

     5.3.  Covenants of Syncor.

     (a) Syncor Stockholders Meeting.  Syncor shall take all action in
accordance with the United States federal securities laws, the DGCL and the
Syncor Certificate and the Syncor By-laws necessary to duly call, give notice
of, convene and hold a special meeting of Syncor Stockholders (the "Syncor
Stockholders Meeting") to be held on the earliest practicable date determined in
consultation with Cardinal to consider and vote upon approval of this Agreement.
Subject to this Section 5.3(a), Syncor shall take all lawful actions to solicit
the approval of this Agreement by the Syncor Stockholders. Syncor shall, except
as provided in this Section 5.3(a) and in Section 5.3(d), through the Board of
Directors of Syncor, recommend to Syncor Stockholders approval of this
Agreement, and, except as expressly permitted by this Agreement, shall not
withdraw, amend or modify in a manner adverse to Cardinal its recommendation.
However, the Board of Directors of Syncor shall be permitted to (i) not
recommend to Syncor Stockholders that they give the Syncor Stockholders Approval
or (ii) withdraw, modify or change the Syncor Board Recommendation in a manner
adverse to Cardinal (a "Syncor Change in Recommendation"), and, in such event,
not solicit votes in favor of

                                       A-26


such approval, if the Board of Directors of Syncor believes in good faith, based
upon the advice of outside legal counsel, that the failure to so withhold,
withdraw or modify its recommendation would reasonably be expected to cause a
failure to comply with its fiduciary duties under Applicable Laws.
Notwithstanding any such Syncor Change in Recommendation, Cardinal shall have
the option, exercisable within 20 days of notice of such Syncor Change in
Recommendation, to terminate this Agreement pursuant to Section 7.1(d). If
Cardinal has not exercised its right to terminate the Agreement within such
20-day period, Cardinal shall no longer be entitled to terminate this Agreement
under Section 7.1(d). Syncor shall ensure that the Syncor Stockholders Meeting
is called, noticed, convened, held and conducted, and that all proxies solicited
in connection with the Syncor Stockholders Meeting are solicited, in compliance
in all material respects with all Applicable Laws. Without limiting the
generality of the foregoing, (i) Syncor agrees that its obligation to duly call,
give notice of, convene and hold the Syncor Stockholders Meeting, as required by
this Section 5.3, shall not be affected by the withdrawal, amendment or
modification of the Syncor Board Recommendation and (ii) Syncor agrees that its
obligations to duly call, give notice of, convene and hold the Syncor
Stockholders Meeting pursuant to this Section 5.3 shall not be affected by the
commencement, public proposal, public disclosure or communication to Syncor of
any Superior Proposal (as defined in Section 5.3(d)).

     (b) Information for the Registration Statement and Preparation of Proxy
Statement.  Syncor shall promptly furnish Cardinal with all information
concerning it as may be required for inclusion in the Proxy Statement and the
Registration Statement. Syncor shall cooperate with Cardinal in the preparation
of the Proxy Statement and the Registration Statement in a timely fashion and
shall use reasonable best efforts to assist Cardinal in having the Registration
Statement declared effective by the Commission as promptly as practicable
consistent with the timing for the Syncor Stockholders Meeting as determined in
consultation with Cardinal. If, at any time prior to the Effective Time, Syncor
shall obtain knowledge of any information pertaining to Syncor that would
require any amendment or supplement to the Registration Statement or the Proxy
Statement, Syncor shall so advise Cardinal and shall promptly furnish Cardinal
with all information as shall be required for such amendment or supplement, and
shall promptly amend or supplement the Registration Statement and/or Proxy
Statement. Syncor shall use reasonable best efforts to cooperate with Cardinal
in the preparation and filing of the Proxy Statement with the Commission.
Consistent with the timing for the Syncor Stockholders Meeting as determined in
consultation with Cardinal, Syncor shall use all reasonable efforts to mail at
the earliest practicable date to Syncor Stockholders the Proxy Statement, which
Proxy Statement shall include all information required under Applicable Laws to
be furnished to Syncor Stockholders in connection with the Merger and the
transactions contemplated by this Agreement and shall include the Syncor Board
Recommendation to the extent not previously withdrawn in compliance with Section
5.3(a) or Section 5.3(d) and the full text of the written opinion of Salomon
Smith Barney described in Section 4.24.

     (c) Conduct of Syncor's Operations.  During the period from the date of
this Agreement to the Effective Time or to the date, if any, on which this
Agreement is earlier terminated pursuant to Section 7.1, without the prior
consent of Cardinal (which consent will not be unreasonably withheld or
delayed), and except as otherwise (i) expressly contemplated by this Agreement,
(ii) required by Applicable Laws (it being understood that, insofar as less than
100% of the equity of any of Syncor's subsidiaries is owned, directly or
indirectly, by Syncor, nothing in this Section 5.3(c) shall be deemed to require
any such of Syncor's subsidiaries to take any action, or fail to take any
action, which action or failure would result in a violation of fiduciary duty
under Applicable Laws) or (iii) set forth in Section 5.3(c) to the Syncor
Disclosure Schedule, Syncor covenants and agrees that it and its subsidiaries:

          (i) shall conduct its operations in the ordinary course and shall use
     its reasonable best efforts to maintain and preserve its business
     organization and its material rights and franchises and to retain the
     services of its officers and key employees and maintain relationships with
     customers, suppliers, lessees, licensees and other third parties, and to
     maintain all of its operating assets in their current condition (normal
     wear and tear excepted), to the end that their goodwill and ongoing
     business shall not be impaired in any material respect (it being agreed
     that any action taken by Syncor or its subsidiaries that is permitted under
     Section 5.3(c)(ii)-(xxiv) shall not be deemed to be a breach of this
     Section 5.3(c)(i));

                                       A-27


          (ii) shall not do or effect any of the following actions with respect
     to its securities: (A) adjust, split, combine or reclassify capital stock
     of Syncor, (B) make, declare or pay any dividend or distribution on, or,
     directly or indirectly, redeem, purchase or otherwise acquire, any shares
     of capital stock of Syncor or any securities or obligations convertible
     into or exchangeable for any shares of capital stock of Syncor (other than
     (I) dividends or distributions from its direct or indirect wholly owned
     subsidiary in the ordinary course of business or (II) dividends or
     distributions by a subsidiary that is partially owned by Syncor or any of
     its subsidiaries in the ordinary course of business; provided that Syncor
     or any of its subsidiaries receives or is to receive its proportionate
     share thereof), (C) grant any person any right or option to acquire any
     shares of capital stock of Syncor, except, after the date of this
     Agreement, for the grant of options to purchase up to 100,000 shares of
     Syncor Common Stock; provided that, such options are granted either (I) in
     the ordinary course of business consistent with past practice after
     consultation with Cardinal to new hires (but, in any event, not under the
     Syncor ESPP) or (II) pursuant to formula awards as set forth in Section
     5.3(c)(ii) to the Syncor Disclosure Schedule; provided that, in each case,
     such options will not vest in connection with the transactions contemplated
     by this Agreement, (D) issue, deliver or sell or agree to issue, deliver or
     sell any additional shares of capital stock of Syncor or any securities or
     obligations convertible into or exchangeable or exercisable for any shares
     of capital stock of Syncor or such securities (except pursuant to the
     exercise of Syncor Options that are outstanding as of the date of this
     Agreement), (E) enter into any agreement, understanding or arrangement with
     respect to the sale, voting, registration or repurchase of capital stock of
     Syncor, or (F) open any offering period or issue any shares of Syncor
     capital stock or grant any purchase rights pursuant to the Syncor ESPP;

          (iii) shall not directly or indirectly sell, transfer, lease, pledge,
     mortgage, encumber or otherwise dispose of any property or assets of Syncor
     or its subsidiaries other than sales, transfers, leases, pledges,
     mortgages, encumbrances or other dispositions in the ordinary course of
     business or that, individually or in the aggregate, are immaterial;

          (iv) shall not make or propose any changes in the Syncor Certificate
     or the Syncor By-laws;

          (v) shall not amend or modify, or propose to amend or modify, the
     Syncor Rights Agreement, as amended as of the date of this Agreement;

          (vi) shall not merge or consolidate with any other person;

          (vii) shall not acquire assets or capital stock of any other person in
     excess of $1,000,000 individually or $3,000,000 in the aggregate, other
     than the acquisition of inventory in the ordinary course of business,
     consistent with past practice;

          (viii) shall not incur, create, assume or otherwise become liable for
     any indebtedness for borrowed money or, except in the ordinary course of
     business, consistent with past practice, assume, guarantee, endorse or
     otherwise as an accommodation become responsible or liable for the
     obligations of any other individual, corporation or other entity;

          (ix) shall not create any subsidiaries;

          (x) shall not enter into or modify in any material respect any
     employment, severance, termination or similar agreements or arrangements
     with, or grant any bonuses, salary increases, severance or termination pay
     to, any officer, director, consultant or employee other than in the
     ordinary course of business consistent with past practice with respect to
     non-officer employees (except for severance agreements, which, in all
     cases, shall require the prior written consent of Cardinal), or otherwise
     increase the compensation or benefits provided to any officer, director,
     consultant or employee, except in the ordinary course of business
     consistent with past practice or as may be required by Applicable Laws, or
     grant, reprice, or accelerate the exercise or payment of any Syncor Options
     or other equity-based awards;

          (xi) shall not enter into, adopt or amend in any material respect any
     Plan, except as shall be required by Applicable Laws;

          (xii) shall not take any action that could give rise to severance
     benefits payable to any officer or director of Syncor as a result of
     consummation of the transactions contemplated by this Agreement;

                                       A-28


          (xiii) shall not change any material method or principle of Tax or
     financial accounting in a manner that is inconsistent with past practice,
     except to the extent required by Applicable Laws or GAAP, as advised by
     Syncor's regular independent accountants;

          (xiv) shall not, except in the ordinary course of business consistent
     with past practice, settle any Actions, whether now pending or made or
     brought after the date of this Agreement involving, individually or in the
     aggregate, an amount in excess of $1,500,000 individually or $3,000,000 in
     the aggregate;

          (xv) shall not, except in the ordinary course of business consistent
     with past practice, modify, amend or terminate, or waive, release or assign
     any material rights or claims with respect to, any Contract set forth in
     Section 4.17 to the Syncor Disclosure Schedule, any other material Contract
     to which Syncor is a party or any confidentiality agreement to which Syncor
     is a party;

          (xvi) shall not enter into any confidentiality agreements or
     arrangements other than in the ordinary course of business consistent with
     past practice (other than as permitted, in each case, by Section 5.3(d));

          (xvii) shall not write up, write down or write off the book value of
     any assets, individually or in the aggregate, in excess of $300,000, except
     for depreciation and amortization in accordance with GAAP consistently
     applied and except, following consultation with Cardinal, as required by
     Applicable Laws or GAAP;

          (xviii) shall not incur or commit to any capital expenditures in
     excess of $1,000,000 individually or $3,000,000 in the aggregate;

          (xix) shall not make any payments in respect of policies of directors'
     and officers' liability insurance (premiums or otherwise) other than
     premiums paid in respect of its current policies or a renewal thereof to
     the extent set forth in Section 4.23 to the Syncor Disclosure Schedule;

          (xx) shall not take any action to exempt or make not subject to (A)
     the provisions of Section 203 of the DGCL or (B) any other state takeover
     law or state law that purports to limit or restrict business combinations
     or the ability to acquire or vote shares, any individual or entity (other
     than Cardinal or its subsidiaries) or any action taken thereby, which
     individual, entity or action would have otherwise been subject to the
     restrictive provisions thereof and not exempt therefrom;

          (xxi) shall not knowingly and intentionally take any action that could
     likely result in a violation or breach of any agreement, covenant,
     representation or warranty contained in this Agreement that has prevented
     or would prevent the satisfaction of the condition set forth in Section
     6.3(a) or 6.3(b);

          (xxii) shall not, except as, individually or in the aggregate, is not
     reasonably likely to have a Material Adverse Effect on Syncor, make, revoke
     or amend any Tax election, settle or compromise any claim or assessment
     with respect to Taxes, execute or consent to any waivers extending the
     statutory period of limitations with respect to the collection or
     assessment of any Taxes or amend any material Tax Returns;

          (xxiii) shall not permit or cause any of its subsidiaries to do any of
     the foregoing or any of the items set forth in Section 5.3(c)(xxiii) to the
     Cardinal Disclosure Schedule or agree or commit to do any of the foregoing;
     or

          (xxiv) except as expressly permitted in this Agreement, shall not
     agree in writing or otherwise to take any of the foregoing actions.

     (d) No Solicitation.  Syncor agrees that, during the term of this
Agreement, it shall not, and shall not authorize and will use best efforts not
to permit any of its subsidiaries or any of its or its subsidiaries' directors,
officers, employees, agents or representatives, directly or indirectly, to
solicit, initiate, encourage or facilitate, or furnish or disclose nonpublic
information in furtherance of, any inquiries or the making of any proposal with
respect to any recapitalization, merger, consolidation or other business
combination involving Syncor, or acquisition of any capital stock (other than
upon exercise of Syncor Options that are outstanding as of the date of this
Agreement) or a material amount of the assets (other than transactions with
customers in the ordinary

                                       A-29


course of business consistent with past practice or the disposition of all or
part of the business or operations of Comprehensive Medical Imaging ("CMI") of
Syncor and its subsidiaries, taken as a whole, in a single transaction or a
series of related transactions, or any combination of the foregoing (a
"Competing Transaction"), or negotiate, explore or otherwise engage in
discussions with any person (other than Cardinal, Subcorp or their respective
directors, officers, employees, agents and representatives) with respect to any
Competing Transaction or enter into any agreement, arrangement or understanding
requiring it to abandon, terminate or fail to consummate the Merger or any other
transactions contemplated by this Agreement; provided that, at any time prior to
the approval of this Agreement by Syncor Stockholders, Syncor may furnish
information to, and negotiate or otherwise engage in discussions with, any
person that delivers a written proposal for a Competing Transaction that was not
solicited or encouraged, except to the extent explicitly permitted by this
Section 5.3(d), after the date of this Agreement if and so long as the Board of
Directors of Syncor believes in good faith as determined by a majority vote,
based upon the advice of its outside legal counsel, that failing to take such
action would reasonably be expected to constitute a breach of its fiduciary
duties under Applicable Laws and believes in good faith, after consulting with a
nationally recognized investment banking firm and Syncor's outside legal
counsel, that such proposal would reasonably be expected to result in a
transaction that, if consummated, would be more favorable to Syncor Stockholders
from a financial point of view than the transactions contemplated by this
Agreement (including any adjustment to the terms and conditions proposed by
Cardinal in response to such Competing Transaction) (a "Superior Proposal");
provided, further, that, prior to furnishing any information to such person,
Syncor shall enter into a confidentiality agreement that is no less restrictive,
in any material respect, than the confidentiality agreement between Cardinal and
Syncor, dated July 9, 2001, as amended on August 29, 2001 and September 5, 2001
(the "Confidentiality Agreement"). Syncor will immediately cease all existing
activities, discussions and negotiations with any persons conducted to the date
of this Agreement with respect to any proposal for a Competing Transaction and
request the return of all confidential information regarding Syncor provided to
any such persons prior to the date of this Agreement pursuant to the terms of
any confidentiality agreements or otherwise. In the event that, prior to the
approval of this Agreement by the Syncor Stockholders, the Board of Directors of
Syncor receives a Superior Proposal that was not solicited or encouraged, except
to the extent permitted by this Section 5.3(d), after the date of this Agreement
and the Board of Directors of Syncor believes in good faith based upon the
advice of its outside legal counsel that failure to take such action would
reasonably be expected to constitute a breach of the fiduciary duties of the
Board of Directors of Syncor under Applicable Laws, the Board of Directors of
Syncor may (subject to this, the following sentences and Section 5.3(a))
withdraw, modify or change, in a manner adverse to Cardinal, the Syncor Board
Recommendation and/or comply with Rule 14e-2 under the Exchange Act with respect
to a Competing Transaction, provided that Syncor gives Cardinal three business
days' prior written notice of its intention to do so (provided that the
foregoing shall in no way limit or otherwise affect Cardinal's right to
terminate this Agreement pursuant to Section 7.1(d), except as set forth in
Section 5.3(a)). Any such withdrawal, modification or change of the Syncor Board
Recommendation shall not change the approval of the Board of Directors of Syncor
for purposes of causing any state takeover statute or other state law to be
inapplicable to the transactions contemplated by this Agreement, including the
Merger or the Support Agreements, or change the obligation of Syncor to present
this Agreement for approval at the duly called Syncor Stockholders Meeting on
the earliest practicable date determined in consultation with Cardinal. From and
after the execution of this Agreement, Syncor shall promptly advise Cardinal in
writing of the receipt, directly or indirectly, of any inquiries or proposals or
the participation by or on behalf of Syncor in any discussions or negotiations,
relating to a Competing Transaction (including, in each case, the specific terms
and status thereof and the identity of the other person or persons involved) and
promptly furnish to Cardinal a copy of any such written proposal in addition to
any information provided to or by any third party relating thereto. All
information provided to Cardinal under this Section 5.3(d) shall be kept
confidential by Cardinal in accordance with the terms of the Confidentiality
Agreement. In addition, Syncor shall promptly advise Cardinal, in writing, if
the Board of Directors of Syncor shall make any determination as to any
Competing Transaction as contemplated by the proviso to the first sentence of
this Section 5.3(d). Furthermore, nothing contained in this Section 5.3(d) shall
prohibit Syncor from making disclosure (and such disclosure in and of itself
shall not be deemed to be a Syncor Change in Recommendation) of the fact that a
Competing Transaction has been proposed, the identity of the person making such
proposal or the material terms of such

                                       A-30


proposal in the Registration Statement or the Proxy Statement only to the extent
the disclosure of such facts, identity or terms is required under Applicable
Laws and only following prior consultation by Syncor with Cardinal regarding any
such proposed disclosure.

     (e) Affiliates of Syncor.  Syncor shall use reasonable best efforts to
cause each such person that will be, at the Effective Time or was on the date of
this Agreement, an "affiliate" of Syncor for purposes of Rule 145 under the
Securities Act to execute and deliver to Cardinal, no less than ten days prior
to the date of the Syncor Stockholders Meeting, the written undertakings in the
form attached as Exhibit A to this Agreement (the "Syncor Affiliate Letter"). No
later than 15 days prior to such date, Syncor, after consultation with its
outside legal counsel, shall provide Cardinal with a letter (reasonably
satisfactory to outside legal counsel to Cardinal) specifying all of the
individuals or entities that, in Syncor's opinion, may be deemed to be
affiliates of Syncor under the preceding sentence. The foregoing
notwithstanding, Cardinal shall be entitled to place legends as specified in the
Syncor Affiliate Letter on the certificates evidencing any of the Cardinal
Common Shares to be received by (i) any such affiliate of Syncor specified in
such letter or (ii) any person Cardinal in consultation with its outside legal
counsel reasonably identifies (by written notice to Syncor and following
discussions and consultation with Syncor's outside legal counsel) as being a
person that is an affiliate, pursuant to the terms of this Agreement, and to
issue appropriate stop transfer instructions to the transfer agent for the
Cardinal Common Shares, consistent with the terms of the Syncor Affiliate
Letters, regardless of whether such person has executed a Syncor Affiliate
Letter and regardless of whether such person's name appears on the letter to be
delivered pursuant to the preceding sentence.

     (f) Access.  Subject to legal and contractual restrictions (including,
without limitation, under Antitrust Laws), upon reasonable notice throughout the
period prior to the earlier of the Effective Time or the date of termination of
this Agreement, Syncor shall permit representatives of Cardinal to have
reasonable access during normal business hours to Syncor's premises, properties,
books, records, contracts and documents. Cardinal will keep the information
obtained pursuant to this Section 5.3(f) confidential pursuant to the terms of
the Confidentiality Agreement and shall cause its directors, officers and
employees and representatives or advisors who receive any portion thereof to
keep all such information confidential, in accordance with the terms of the
Confidentiality Agreement. Cardinal will use reasonable best efforts to minimize
any disruption to the businesses of Syncor and its subsidiaries that may result
from the requests for access, data and information hereunder. Cardinal shall
afford to Syncor's directors, officers, employees, and representatives or
advisors reasonable access during normal business hours upon reasonable notice,
to its directors, officers, employees, and books and records to the extent
reasonably necessary in connection with the preparation of the Proxy Statement.
No investigation conducted pursuant to this Section 5.3(f) shall affect or be
deemed to modify any representation or warranty made in this Agreement.

     (g) Subsequent Financial Statements.  Syncor shall consult with Cardinal
prior to making publicly available its financial results for any period after
the date of this Agreement and prior to filing any Syncor SEC Documents after
the date of this Agreement (other than routine filings pursuant to Rule 425
under the Securities Act or Rule 14a-12 under the Exchange Act).

                                  ARTICLE VI.

                                   CONDITIONS

     6.1. Conditions to the Obligations of Each Party.  The obligations of
Syncor, Cardinal and Subcorp to consummate the Merger shall be subject to the
satisfaction (or to the extent legally permissible, waiver) of the following
conditions:

          (a) This Agreement, shall have been approved by Syncor Stockholders in
     the manner required by Applicable Laws.

          (b) Any applicable waiting periods under the HSR Act relating to the
     Merger and the transactions contemplated by this Agreement shall have
     expired or been terminated, and any other approvals of any Governmental
     Authority shall have been obtained, except for such approvals (unrelated to
     Antitrust

                                       A-31


     Laws) the failure of which to obtain would not, individually or in the
     aggregate, result in the imposition of any fine or penalty except in
     immaterial amounts.

          (c) No provision of any Applicable Law and no judgment, injunction,
     order or decree of a Governmental Authority shall prohibit or enjoin the
     consummation of the Merger or the transactions contemplated by this
     Agreement or limit the ownership or operation by Cardinal, Syncor or any of
     their respective subsidiaries of any material portion of the businesses or
     assets of Cardinal or Syncor.

          (d) There shall not be pending any Action by any Governmental
     Authority (i) challenging or seeking to restrain or prohibit the
     consummation of the Merger or any of the other transactions contemplated by
     this Agreement, (ii) seeking to prohibit or limit in any material respect
     the ownership or operation by Cardinal, Syncor or any of their respective
     subsidiaries of, or to compel Cardinal, Syncor or any of their respective
     subsidiaries to dispose of or hold separate, any material portion of the
     business or assets of Cardinal, Syncor or any of their respective
     subsidiaries, as a result of the Merger or any of the other transactions
     contemplated by this Agreement, except in the case of this clause (ii) for
     such prohibitions, limitations, dispositions or holdings that would not be
     deemed to constitute a Material Adverse Effect under Section 5.1(a)(iv), or
     (iii) seeking to impose limitations on the ability of Cardinal to acquire
     or hold, or exercise full rights of ownership of, any shares of capital
     stock of the Surviving Corporation, including the right to vote capital
     stock of the Surviving Corporation on all matters properly presented to the
     stockholders of the Surviving Corporation.

          (e) The Commission shall have declared the Registration Statement
     effective under the Securities Act, and no stop order or similar
     restraining order suspending the effectiveness of the Registration
     Statement shall be in effect and no proceedings for such purpose shall be
     pending before or threatened by the Commission or any state securities
     administrator.

          (f) The Cardinal Common Shares to be issued in the Merger and upon
     exercise of Cardinal Exchange Options shall have been approved for listing
     on the NYSE, subject to official notice of issuance.

          (g) Syncor shall have received the opinion of Skadden, Arps, Slate,
     Meagher & Flom LLP, dated as of the Closing Date, to the effect that (i)
     the Merger will constitute a "reorganization" (within the meaning of
     Section 368(a) of the Code) and (ii) no gain or loss will be recognized by
     Syncor Stockholders upon the receipt of Cardinal Common Shares in exchange
     for shares of Syncor Common Stock pursuant to the Merger, except with
     respect to cash received in lieu of fractional share interests in Cardinal
     Common Shares.

     6.2. Conditions to Obligations of Syncor.  The obligations of Syncor to
consummate the Merger and the transactions contemplated by this Agreement shall
be subject to the satisfaction of the following conditions unless waived by
Syncor:

          (a) Each of the representations and warranties of each of Cardinal and
     Subcorp set forth in Article III shall be true and correct in all respects
     (but without regard to any materiality qualifications or references to
     Material Adverse Effect contained in any specific representation or
     warranty) on the date of this Agreement and on and as of the Closing Date
     as though made on and as of the Closing Date (except for representations
     and warranties made as of a specified date, the accuracy of which will be
     determined as of the specified date), except where any such failure of the
     representations and warranties in the aggregate to be true and correct in
     all respects would not reasonably be expected to have a Material Adverse
     Effect on Cardinal.

          (b) Each of Cardinal and Subcorp shall have performed in all material
     respects each obligation and agreement and shall have complied in all
     material respects with each covenant to be performed and complied with by
     it under this Agreement at or prior to the Effective Time.

          (c) Each of Cardinal and Subcorp shall have furnished Syncor with a
     certificate dated the Closing Date signed on behalf of it by the Chairman,
     President or any Vice President of Cardinal and Subcorp, as applicable, to
     the effect that the conditions set forth in Sections 6.2(a) and 6.2(b) have
     been satisfied.

                                       A-32


          (d) Since the date of this Agreement, except to the extent
     contemplated by Section 3.11 to the Cardinal Disclosure Schedule, there
     shall not have been events or occurrences individually or in the aggregate
     that would be a Material Adverse Effect on Cardinal.

     6.3. Conditions to Obligations of Cardinal and Subcorp.  The obligations of
Cardinal and Subcorp to consummate the Merger and the other transactions
contemplated by this Agreement shall be subject to the satisfaction of the
following conditions unless waived by Cardinal:

          (a) Each of the representations and warranties of Syncor set forth in
     Article IV (other than the representations and warranties of Syncor set
     forth in the first three sentences of Section 4.4) shall be true and
     correct in all respects (but without regard to any materiality
     qualifications or references to Material Adverse Effect contained in any
     specific representation or warranty) on the date of this Agreement and on
     and as of the Closing Date as though made on and as of the Closing Date
     (except for representations and warranties made as of a specified date, the
     accuracy of which will be determined as of the specified date), except
     where any such failure of the representations and warranties in the
     aggregate to be true and correct in all respects would not reasonably be
     expected to have a Material Adverse Effect on Syncor. The representations
     and warranties of Syncor set forth in the first three sentences of Section
     4.4 shall be true and correct (subject to de minimis exceptions) on the
     date of this Agreement and on and as of the Closing Date as though made on
     and as of the Closing Date (except for representations and warranties made
     as of a specified date, the accuracy of which will be determined as of the
     specified date).

          (b) Syncor shall have performed in all material respects each
     obligation and agreement and shall have complied in all material respects
     with each covenant to be performed and complied with by it under this
     Agreement at or prior to the Effective Time.

          (c) Syncor shall have furnished Cardinal with a certificate dated the
     Closing Date signed on its behalf by its Chairman, President or any Vice
     President to the effect that the conditions set forth in Sections 6.3(a)
     and 6.3(b) have been satisfied.

          (d) Since the date of this Agreement, except to the extent
     contemplated by Section 4.12 to the Syncor Disclosure Schedule, there shall
     not have been events or occurrences, individually or in the aggregate, that
     would be a Material Adverse Effect on Syncor.

                                  ARTICLE VII.

                           TERMINATION AND AMENDMENT

     7.1. Termination.  This Agreement may be terminated and the Merger may be
abandoned at any time prior to the Effective Time (notwithstanding any approval
of this Agreement by Syncor Stockholders):

          (a) by mutual written consent of Cardinal and Syncor;

          (b) by either Cardinal or Syncor if there shall be any law or
     regulation that makes consummation of the Merger illegal or otherwise
     prohibited, or if any judgment, injunction, order or decree of a court or
     other competent Governmental Authority enjoining Cardinal or Syncor from
     consummating the Merger shall have been entered and such judgment,
     injunction, order or decree shall have become final and nonappealable;
     provided that the party seeking to terminate this Agreement pursuant to
     this Section 7.1(b) shall have used its reasonable best efforts to remove
     such order, decree, ruling or injunction;

          (c) by either Cardinal or Syncor if the Merger shall not have been
     consummated before December 31, 2002, provided, however, that, in the event
     the condition set forth in Section 6.1(b) shall not have been satisfied on
     or prior to December 31, 2002, this date shall be extended to the earlier
     of the date that is ten business days after the date on which the condition
     set forth in Section 6.1(b) is satisfied and April 30, 2003; provided,
     further, that the right to terminate this Agreement under this Section
     7.1(c) shall not be available to any party to this Agreement whose failure
     or whose affiliate's failure to perform any material covenant or obligation
     under this Agreement has been the primary cause of or resulted in the
     failure of the Merger to occur on or before such date;

                                       A-33


          (d) by Cardinal (i) if there shall have been a Syncor Change in
     Recommendation or (ii) if the Syncor Board of Directors shall have refused
     to affirm the Syncor Board Recommendation within 20 days of any written
     request from Cardinal.

          (e) by Cardinal or Syncor if, at the Syncor Stockholders Meeting
     (including any adjournment or postponement thereof), the requisite vote of
     Syncor Stockholders to approve this Agreement shall not have been obtained;

          (f) by Cardinal if there has been a violation or breach by Syncor of
     any agreement, covenant, representation or warranty contained in this
     Agreement that has prevented or would prevent the satisfaction of the
     conditions set forth in Sections 6.3(a) and (b) at the time of such breach
     or violation and such violation or breach has not been waived by Cardinal
     nor cured by Syncor prior to the earlier of (i) 20 business days after the
     giving of written notice to Syncor of such breach and (ii) December 31,
     2002; or

          (g) by Syncor if there has been a violation or breach by Cardinal of
     any agreement, covenant, representation or warranty contained in this
     Agreement that has prevented or would prevent the satisfaction of the
     conditions set forth in Sections 6.2(a) and (b) at the time of such breach
     or violation and such violation or breach has not been waived by Syncor nor
     cured by Cardinal prior to the earlier of (i) 20 business days after the
     giving of written notice to Cardinal of such breach and (ii) December 31,
     2002.

     7.2. Effect of Termination.  In the event of the termination of this
Agreement pursuant to Section 7.1, this Agreement, except for the provisions of
the second sentence of Section 5.3(f) and the provisions of this Section 7.2 and
Sections 8.7, 8.8 and 8.11, shall become void and have no effect, without any
liability on the part of any party to this Agreement or the directors, officers,
or stockholders or shareholders of any party to this Agreement, as the case may
be. Notwithstanding the foregoing, nothing in this Section 7.2 shall relieve any
party to this Agreement of liability for an intentional and material breach of
any provision of this Agreement, provided, however, that, if it shall be
judicially determined that termination of this Agreement was caused by an
intentional and material breach of this Agreement, then, in addition to other
remedies at law or equity for breach of this Agreement, the party to this
Agreement so found to have intentionally breached this Agreement shall indemnify
and hold harmless the other parties to this Agreement for their respective
out-of-pocket costs, fees and expenses of their counsel, accountants, financial
advisors and other experts and advisors as well as fees and expenses incident to
negotiation, preparation and execution of this Agreement and related
documentation and shareholder meetings and consents (collectively, "Costs"). If
this Agreement is terminated pursuant to Section 7.1(d) or Section 7.1(e), then
Syncor will, within three business days following any such termination by
Cardinal, or, in the case of a termination by Syncor, concurrently with such
termination, pay to Cardinal in cash by wire transfer in immediately available
funds to an account in the United States designated by Cardinal in reimbursement
for Cardinal's actual and documented reasonable Costs, an amount in cash up to
but not in excess of $4,000,000 in the aggregate. If this Agreement is
terminated pursuant to

     (a) Section 7.1(d) or Section 7.1(e) and at any time prior to such
termination a bona fide proposal regarding a Competing Transaction with respect
to Syncor shall not have been made to Syncor, nor shall there have been any
public disclosure of any bona fide proposal or expression of interest by a third
party regarding a Competing Transaction, or

     (b) Section 7.1(a) or Section 7.1(c) and at any time prior to such
termination a bona fide proposal regarding a Competing Transaction with respect
to Syncor shall have been made to Syncor, or any bona fide proposal or
expression of interest by a third party regarding a Competing Transaction shall
have been publicly disclosed

and within six months after the date of any such termination Syncor enters into
a letter of intent, agreement-in-principle, acquisition agreement or other
similar agreement with respect to, or publicly announces, a Business Combination
(as defined below) or consummates a Business Combination, then Syncor will, upon
consummation of such Business Combination, pay to Cardinal in cash by wire
transfer in immediately available funds to an account designated by Cardinal a
termination fee in an amount equal to $24,125,000

                                       A-34


(less amounts paid in reimbursement of Costs). If this Agreement is terminated
pursuant to Section 7.1(d) or Section 7.1(e), and at any time prior to such
termination a bona fide proposal regarding a Competing Transaction with respect
to Syncor shall have been made to Syncor, or any bona fide proposal or
expression of interest by a third party regarding a Competing Transaction shall
have been publicly disclosed, then (i) Syncor will, in the case of a termination
by Cardinal, within three business days following any such termination or, in
the case of a termination by Syncor, concurrently with such termination, pay to
Cardinal in cash by wire transfer in immediately available funds to an account
in the United States designated by Cardinal a termination fee in an amount equal
to $12,062,500 (less amounts paid in reimbursement of Costs); and, furthermore,
if within 12 months after the date of any such termination Syncor enters into a
letter of intent, agreement-in-principle, acquisition agreement or other similar
agreement with respect to, or publicly announces, a Business Combination or
consummates a Business Combination, then Syncor will, upon the consummation of
such Business Combination, pay to Cardinal in cash by wire transfer in
immediately available funds to an account in the United States designated by
Cardinal an additional termination fee in an amount equal to $12,062,500.
"Business Combination" means (a) a merger, consolidation, share exchange,
business combination or similar transaction involving Syncor as a result of
which Syncor Stockholders, prior to such transaction, in the aggregate, cease to
own at least 60% of the voting securities of the entity surviving or resulting
from such transaction (or the ultimate parent entity thereof), (b) a sale,
lease, exchange, transfer or other disposition of more than 33% of the assets of
Syncor and its subsidiaries, taken as a whole, in a single transaction or a
series of related transactions (other than to customers in the ordinary course
of business or the disposition of all or part of the business or operations of
CMI), or (c) the acquisition, by a person (other than Cardinal or any affiliate
thereof) or "group" (as defined under Section 13(d) of the Exchange Act) of
"beneficial ownership" (as defined in Rule 13d-3 under the Exchange Act) of more
than 33% of Syncor Common Stock, whether by tender or exchange offer or
otherwise.

     7.3. Amendment.  This Agreement may be amended by the parties to this
Agreement, by action taken or authorized by their respective Boards of
Directors, at any time before or after approval of this Agreement by Syncor
Stockholders, but, after any such approval, no amendment shall be made that by
law requires further approval or authorization by Syncor Stockholders without
such further approval or authorization. Notwithstanding the foregoing, this
Agreement may not be amended, except by an instrument in writing signed on
behalf of each of the parties to this Agreement.

     7.4. Extension; Waiver.  At any time prior to the Effective Time, Cardinal
(with respect to Syncor) and Syncor (with respect to Cardinal and Subcorp) by
action taken or authorized by their respective Boards of Directors, may, to the
extent legally allowed, (a) extend the time for the performance of any of the
obligations or other acts of such party to this Agreement, (b) waive any
inaccuracies in the representations and warranties contained in this Agreement
or in any document delivered pursuant to this Agreement and (c) waive compliance
with any of the agreements or conditions contained in this Agreement. Any
agreement on the part of a party to this Agreement to any such extension or
waiver shall be valid only if set forth in a written instrument signed on behalf
of such party to this Agreement.

                                 ARTICLE VIII.

                                 MISCELLANEOUS

     8.1. Survival of Representations and Warranties.  The representations and
warranties made in this Agreement by the parties to this Agreement shall not
survive the Effective Time. This Section 8.1 shall not limit any covenant or
agreement of the parties to this Agreement, which by its terms contemplates
performance after the Effective Time or after the termination of this Agreement.

     8.2. Notices.  All notices and other communications under this Agreement
shall be in writing and shall be deemed given if delivered personally,
telecopied (which is confirmed) or dispatched by a nationally

                                       A-35


recognized overnight courier service to the parties to this Agreement at the
following addresses (or at such other address for a party to this Agreement as
shall be specified by like notice):

          (a) if to Cardinal or Subcorp:

              Cardinal Health, Inc.
              7000 Cardinal Place
              Dublin, Ohio 43017
              Attention: Paul S. Williams
                         Executive Vice President, Chief Legal Officer &
                         Secretary
              Telecopy No.: (614) 757-6948

              with a copy to

              David A. Katz, Esq.
              Wachtell, Lipton, Rosen & Katz
              51 West 52nd Street
              New York, New York 10019
              Telecopy No.: (212) 403-2000

          (b) if to Syncor:

              Syncor International Corporation
              6464 Canoga Avenue
              Woodland Hills, CA 91367
              Attention: Monty Fu
                         Chairman
              Telecopy No.: (818) 737-4826

              with a copy to

              Paul T. Schnell, Esq.
              Richard J. Grossman, Esq.
              Skadden, Arps, Slate, Meagher & Flom LLP
              Four Times Square
              New York, New York 10036
              Telecopy No.: (212) 735-2000

     8.3. Interpretation.  When a reference is made in this Agreement to an
Article or Section, such reference shall be to an Article or Section of this
Agreement unless otherwise indicated. The headings, the table of contents and
the index of defined terms contained in this Agreement are for reference
purposes only and shall not affect in any way the meaning or interpretation of
this Agreement. Whenever the words "include," "includes," or "including" are
used in this Agreement, they shall be deemed to be followed by the words
"without limitation." A "Material Adverse Effect" with respect to any party to
this Agreement shall be deemed to occur if there shall have been a material
adverse effect on the business, financial condition or results of operations of
such party to this Agreement and its subsidiaries, taken as a whole, except to
the extent that such adverse effect results from (a) changes (i) in prevailing
interest rates in the United States or financial market conditions in the United
States, (ii) in general economic conditions in the United States or (iii) in
GAAP; (b) any developments, changes or consequences relating to or that could
arise from the actual or prospective renewal of (or failure to renew) the BMS
Contract, any new terms that may be negotiated in any proposed or actual amended
or new BMS Contract, any negotiations with BMS (or the substitute counterparty)
directly relating to the BMS Contract or any amendment to the BMS Contract or a
new BMS Contract, in each case, regardless of whether or not BMS owns the
product covered by the BMS Contract; or (c) any developments, changes or
consequences relating to the process for the possible sale of all or a portion
of the business of CMI (the "CMI Business"), including the failure to sell all
or any portion of the CMI Business, the level of interest of any parties in
pursuing a sale or the value or other terms for a sale indicated by such
parties, and the pricing or other terms of any such sale, or the effect of any
accounting charges,

                                       A-36


adjustments and changes ("CMI Changes") set forth in Section 5.3(c) to the
Syncor Disclosure Schedule. For the purposes of this Agreement, in determining
whether there has been a Material Adverse Effect on Syncor, any changes to or
developments regarding the CMI Business shall be measured solely against the
actual results of the CMI Business for the fiscal year ended December 31, 2001.
A "subsidiary" means, when used with respect to any party to this Agreement, any
corporation or other organization, incorporated or unincorporated, (a) of which
such party to this Agreement or any of its subsidiaries is a general partner
(excluding partnerships, the general partnership interests of which held by such
party to this Agreement or any of its subsidiaries do not have 50% or more of
the voting interests in such partnership) or (b) 50% or more of the securities
or other interests of which having by their terms ordinary voting power to elect
at least 50% of the board of directors or others performing similar functions
with respect to such corporation or other organization is, directly or
indirectly, owned or controlled by such party to this Agreement or one or more
of its subsidiaries (or, if there are no such voting securities or interests,
50% or more of the equity interests of which is, directly or indirectly, owned
or controlled by such party to this Agreement or one or more of its
subsidiaries). With respect to Syncor, "knowledge" shall mean the actual
knowledge of the individuals set forth in Section 8.3 to the Syncor Disclosure
Schedule. With respect to Cardinal, "knowledge" shall mean the actual knowledge
of the individuals set forth in Section 8.3 to the Cardinal Disclosure Schedule.

     8.4. Counterparts.  This Agreement may be executed in counterparts, which
together shall constitute one and the same Agreement. The parties to this
Agreement may execute more than one copy of this Agreement, each of which shall
constitute an original.

     8.5. Entire Agreement.  This Agreement (including the documents and the
instruments relating to the Merger referred to in this Agreement), the Support
Agreements and the Confidentiality Agreement constitute the entire agreement
among the parties to this Agreement and supersede all prior agreements and
understandings, agreements or representations by or among the parties to this
Agreement, written and oral, with respect to the subject matter of this
Agreement and thereof. With respect to the transactions contemplated by this
Agreement and the subject matter of this Agreement, neither Cardinal and its
affiliates nor Syncor and its affiliates makes any representations or warranties
other than those set forth in this Agreement.

     8.6. Third-Party Beneficiaries.  Except for the agreement set forth in
Section 5.2(c), nothing in this Agreement, express or implied, is intended or
shall be construed to create any third-party beneficiaries.

     8.7. Governing Law.  This Agreement shall be governed by and construed in
accordance with the laws of the State of Delaware without regard to the
principles of conflicts of laws thereof. All actions and proceedings arising out
of or relating to this Agreement shall be heard and determined in any state or
federal court sitting in the State of Delaware.

     8.8. Consent to Jurisdiction; Venue.

     (a) Each of the parties to this Agreement irrevocably submits to the
exclusive jurisdiction of the state courts of Delaware and to the jurisdiction
of the United States District Court for the District of Delaware, for the
purpose of any action or proceeding arising out of or relating to this Agreement
and each of the parties to this Agreement irrevocably agrees that all claims in
respect to such action or proceeding may be heard and determined exclusively in
any Delaware state or federal court sitting in the State of Delaware. Each of
the parties to this Agreement agrees that a final non-appealable judgment in any
action or proceeding shall be conclusive and may be enforced in other
jurisdictions by suit on the judgment or in any other manner provided by law.

     (b) Each of the parties to this Agreement irrevocably consents to the
service of any summons and complaint and any other process in any other action
or proceeding relating to the Merger, on behalf of itself or its property, by
the personal delivery of copies of such process to such party to this Agreement.
Nothing in this Section 8.8 shall affect the right of any party to this
Agreement to serve legal process in any other manner permitted by law.

     8.9. Specific Performance.  The transactions contemplated by this Agreement
are unique. Accordingly, each of the parties to this Agreement acknowledges and
agrees that, in addition to all other remedies to which

                                       A-37


it may be entitled, each of the parties to this Agreement is entitled to the
fullest extent permitted by Applicable Laws to an injunction restraining such
breach, violation or default or threatened breach, violation or default and to
any other equitable relief, including, without limitation, specific performance,
without bond or other security being required in the event of a breach or
violation of, or a default under, this Agreement, provided that such party to
this Agreement is not in material default hereunder.

     8.10. Assignment.  Neither this Agreement nor any of the rights, interests
or obligations under this Agreement shall be assigned by any of the parties to
this Agreement (whether by operation of law or otherwise) without the prior
written consent of the other parties to this Agreement. Subject to the preceding
sentence, this Agreement shall be binding upon, inure to the benefit of and be
enforceable by the parties to this Agreement and their respective successors and
assigns.

     8.11. Expenses.  Subject to the provisions of Section 7.2, all costs and
expenses incurred in connection with this Agreement and the transactions
contemplated by this Agreement and thereby shall be paid by the party to this
Agreement incurring such expenses.

     8.12. Severability.  Any term or provision of this Agreement that is
invalid or unenforceable in any jurisdiction shall, as to that jurisdiction, be
ineffective to the extent of such invalidity or unenforceability without
rendering invalid or unenforceable the remaining terms and provisions of this
Agreement in any other jurisdiction. If any provision of this Agreement is so
broad as to be unenforceable, such provision shall be interpreted to be only so
broad as is enforceable.

     IN WITNESS WHEREOF, Cardinal, Subcorp and Syncor have signed this Agreement
as of the date first written above.

                                          CARDINAL HEALTH, INC.

                                          By: /s/ ROBERT D. WALTER
                                            ------------------------------------
                                            Name: Robert D. Walter
                                            Title: Chairman and Chief Executive

                                          MUDHEN MERGER CORP.

                                          By: /s/ ROBERT D. WALTER
                                            ------------------------------------
                                            Name: Robert D. Walter
                                            Title: Chairman

                                          SYNCOR INTERNATIONAL CORPORATION

                                          By: /s/ ROBERT G. FUNARI
                                            ------------------------------------
                                            Name: Robert G. Funari
                                            Title:President and Chief Executive
                                                  Officer

                                       A-38


                                                                         ANNEX B

                   [LETTERHEAD OF SALOMON SMITH BARNEY INC.]

June 14, 2002

The Board of Directors
Syncor International Corporation
6464 Canoga Avenue
Woodland Hills, California 91367

Members of the Board:

     You have requested our opinion as to the fairness, from a financial point
of view, to the holders of the common stock of Syncor International Corporation
("Syncor") of the Exchange Ratio (defined below) set forth in the Agreement and
Plan of Merger, dated as of June 14, 2002 (the "Merger Agreement"), among
Cardinal Health, Inc. ("Cardinal"), Mudhen Merger Corp., a wholly owned
subsidiary of Cardinal ("Merger Sub"), and Syncor. As more fully described in
the Merger Agreement, (i) Merger Sub will be merged with and into Syncor (the
"Merger") and (ii) each outstanding share of the common stock, par value $0.05
per share, of Syncor ("Syncor Common Stock") will be converted into the right to
receive 0.52 (the "Exchange Ratio") of a share of the common stock, without par
value, of Cardinal ("Cardinal Common Shares").

     In arriving at our opinion, we reviewed the Merger Agreement and certain
related agreements and held discussions with certain senior officers, directors
and other representatives and advisors of Syncor and certain senior officers and
other representatives and advisors of Cardinal concerning the businesses,
operations and prospects of Syncor and Cardinal. We examined certain publicly
available business and financial information relating to Syncor and Cardinal as
well as certain financial forecasts and other information and data with respect
to Syncor and certain publicly available financial forecasts and other
information and data with respect to Cardinal, which were provided to or
otherwise discussed with us by the managements of Syncor and Cardinal, including
certain information relating to the potential strategic implications and
operational benefits anticipated by the management of Syncor to result from the
Merger. We reviewed the financial terms of the Merger as set forth in the Merger
Agreement in relation to, among other things: current and historical market
prices and trading volumes of Syncor Common Stock and Cardinal Common Shares;
historical and projected earnings and other operating data of Syncor and
Cardinal; and the capitalization and financial condition of Syncor and Cardinal.
We considered, to the extent publicly available, the financial terms of other
transactions effected which we considered relevant in evaluating the Merger and
analyzed certain financial, stock market and other publicly available
information relating to the businesses of other companies whose operations we
considered relevant in evaluating those of Syncor and Cardinal. We also
evaluated the potential pro forma financial impact of the Merger on Cardinal. In
addition to the foregoing, we conducted such other analyses and examinations and
considered such other financial, economic and market criteria as we deemed
appropriate in arriving at our opinion.

     In rendering our opinion, we have assumed and relied, without independent
verification, upon the accuracy and completeness of all financial and other
information and data publicly available or furnished to or otherwise reviewed by
or discussed with us. With respect to financial forecasts and other information
and data relating to Syncor provided to or otherwise discussed with us and used
in our analysis, we have been advised by the management of Syncor that such
financial forecasts and other information and data were reasonably prepared on
bases reflecting the best currently available estimates and judgments of the
management of Syncor as to the future financial performance of Syncor. With
respect to publicly available financial forecasts and other information and data
relating to Cardinal provided to or otherwise discussed with us and used in our
analysis, we have been advised by the management of Cardinal that such forecasts
and other information and data represent reasonable estimates as to the future
financial performance of Cardinal. We have assumed, with your consent, that the
Merger will be consummated in accordance with its terms, without waiver,
modification or amendment of any material term, condition or agreement and that,
in the course of obtaining the necessary regulatory or third party approvals and
consents for the Merger, no delay, limitation, restriction or condition


The Board of Directors
Syncor International Corporation
June 14, 2002
Page 2

will be imposed other than as specified in the Merger Agreement and related
documents. We also have assumed, with your consent, that the Merger will be
treated as a tax-free reorganization for federal income tax purposes. Our
opinion, as set forth herein, relates to the relative values of Syncor and
Cardinal. We are not expressing any opinion as to what the value of Cardinal
Common Shares actually will be when issued in the Merger or the prices at which
Cardinal Common Shares will trade or otherwise be transferable at any time. We
have not made or been provided with an independent evaluation or appraisal of
the assets or liabilities (contingent or otherwise) of Syncor or Cardinal nor
have we made any physical inspection of the properties or assets of Syncor or
Cardinal. In connection with our engagement, and at the request of Syncor, we
held preliminary discussions with selected third parties regarding the possible
acquisition of Syncor. Our opinion does not address the relative merits of the
Merger as compared to any alternative business strategies that might exist for
Syncor or the effect of any other transaction in which Syncor might engage. Our
opinion is necessarily based upon information available to us, and financial,
stock market and other conditions and circumstances existing and disclosed to
us, as of the date hereof.

     Salomon Smith Barney Inc. has acted as financial advisor to Syncor in
connection with the proposed Merger and will receive a fee for such services, a
significant portion of which is contingent upon the consummation of the Merger.
We also will receive a fee upon delivery of this opinion. We and our affiliates
in the past have provided, and currently are providing, services to Syncor
unrelated to the proposed Merger, for which services we have received, and
expect to receive, compensation. We and our affiliates also in the past have
provided, and may in the future provide, services to Cardinal unrelated to the
proposed Merger, for which services we have received, and may receive,
compensation. In the ordinary course of our business, we and our affiliates may
actively trade or hold the securities of Syncor and Cardinal for our own account
or for the account of our customers and, accordingly, may at any time hold a
long or short position in such securities. In addition, we and our affiliates
(including Citigroup Inc. and its affiliates) may maintain relationships with
Syncor, Cardinal and their respective affiliates.

     Our advisory services and the opinion expressed herein are provided for the
information of the Board of Directors of Syncor in its evaluation of the
proposed Merger, and our opinion is not intended to be and does not constitute a
recommendation to any stockholder as to how such stockholder should vote or act
on the proposed Merger or as to any other matters relating to the Merger.

     Based upon and subject to the foregoing, our experience as investment
bankers, our work as described above and other factors we deemed relevant, we
are of the opinion that, as of the date hereof, the Exchange Ratio is fair, from
a financial point of view, to the holders of Syncor Common Stock.

Very truly yours,

/s/ Salomon Smith Barney Inc.

SALOMON SMITH BARNEY INC.


                                [FORM OF PROXY]

                               [PRELIMINARY COPY]

                                     PROXY


    THE PROXY IS SOLICITED BY THE BOARD OF DIRECTORS OF SYNCOR INTERNATIONAL
CORPORATION FOR THE SPECIAL MEETING OF SYNCOR INTERNATIONAL CORPORATION
STOCKHOLDERS. The undersigned hereby appoints Monty Fu and Robert G. Funari, and
each of them, with full power of substitution and resubstitution, attorneys and
proxies of the undersigned to vote all of the outstanding shares of common
stock, par value $0.05 per share, of Syncor International Corporation ("Syncor")
("Syncor Common Stock") that the undersigned is entitled to vote, and with all
the power that the undersigned would possess, if personally present, at the
special meeting of Syncor stockholders to be held on October [ ], 2002 (the
"Special Meeting"), or at any adjournment or postponement of the Special
Meeting, on the following matters:


             YOUR BOARD OF DIRECTORS UNANIMOUSLY RECOMMENDS A VOTE
                       FOR THE PROPOSALS SET FORTH BELOW

   1. MERGER AGREEMENT. To approve the Agreement and Plan of Merger, dated as of
June 14, 2002, by and among Syncor, Cardinal Health, Inc. and Mudhen Merger
Corp, pursuant to which Mudhen Merger Corp. will be merged with and into Syncor.


                                                     
  [ ] FOR                   [ ] AGAINST                    [ ] ABSTAIN


   2. ADJOURNMENT. To adjourn the Special Meeting, if necessary, to permit
further solicitation of proxies in the event there are not sufficient votes at
the time of the Special Meeting to approve the merger agreement proposal.


                                                     
  [ ] FOR                   [ ] AGAINST                    [ ] ABSTAIN


   In their discretion, the proxies named above are authorized to vote upon such
other matters as may properly come before the Special Meeting and any
adjournment or postponement of the Special Meeting. If you do not sign and
return a proxy card, or vote by telephone or through the internet, or attend the
Special Meeting, your shares of Syncor Common Stock cannot be voted. IF NO
INSTRUCTIONS ARE GIVEN, THIS PROXY WILL BE VOTED FOR BOTH PROPOSALS.

                  (continued, and to be signed, on other side)


                          (continued from other side)

    All previous proxies given by the undersigned to vote at the Special Meeting
or at any adjournment or postponement of the Special Meeting are hereby revoked,
and receipt of notice of the Special Meeting and of the accompanying Proxy
Statement is hereby acknowledged.

                                                Date: ------------------, 2002



                                                ------------------------------
                                                          (SIGNATURE)

                                                --------------------------------
                                                  (SIGNATURE, IF JOINTLY HELD)



                                                --------------------------------
                                                            (TITLE)

    NOTE:  Please sign your name exactly as it appears hereon. Joint owners
should each sign. When signing as attorney, executor, administrator, trustee or
guardian, please give your full title as such. If signing on behalf of a
corporation, please sign in full corporate name by the President or other
authorized officer(s) of the corporation. If signing on behalf of a partnership,
please sign in full partnership name by authorized person(s) of the partnership.

                     Your control number is: --------------


                               VOTE BY TELEPHONE

    Have your voting instruction card available when you call the Toll-Free
number 1-800-[             ] using a touch-tone telephone. You will be prompted
to enter your Control Number and then you can follow the simple prompts that
will be presented to you to record your vote.

                                VOTE BY INTERNET

    Have your voting instruction card available when you access the website
[           ]. You will be prompted to enter your Control Number and then you
can follow the simple prompts that will be presented to you to record your vote.

                                  VOTE BY MAIL

    Please mark, sign and date your voting instruction card and return it in the
postage-paid envelope provided or return it to: [             ].

                      VOTE 24 HOURS A DAY, 7 DAYS A WEEK!

  YOUR TELEPHONE OR INTERNET VOTE MUST BE RECEIVED BY 11:59 P.M. EASTERN TIME
        ON [             ], 2002 TO BE COUNTED IN THE FINAL TABULATION.