UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                  SCHEDULE 13D

                    Under the Securities Exchange Act of 1934
                               (Amendment No.__)*

                             Mylan Laboratories Inc.
                                (Name of Issuer)

                     Common Stock, par value $.50 per share
                         (Title of Class of Securities)

                                    628530107
                                 (CUSIP Number)

                              Keith Schaitkin, Esq.
                            Associate General Counsel
                  Icahn Associates Corp. & affiliated companies
                          767 Fifth Avenue, 47th Floor
                            New York, New York 10153
                                 (212) 702-4380

           (Name, Address and Telephone Number of Person Authorized to
                       Receive Notices and Communications)

                                 August 27, 2004
             (Date of Event which Requires Filing of this Statement)

     If the filing  person has  previously  filed a statement on Schedule 13G to
report the  acquisition  that is the subject of this Schedule 13D, and is filing
this schedule  because of '' 240.13d-1(e),  240.13d-1(f) or 240.13d-1(g),  check
the following box / /.

     NOTE:  Schedules  filed in paper format shall include a signed original and
five copies of the schedule,  including  all  exhibits.  See Rule 13d- for other
parties to whom copies are to be sent.

     *The  remainder  of this cover  page  shall be filled  out for a  reporting
person's  initial  filing on this  form with  respect  to the  subject  class of
securities,  and for any subsequent amendment containing information which would
alter disclosures provided in a prior cover page.

     The  information  required on the remainder of this cover page shall not be
deemed to be "filed"  for the purpose of Section 18 of the  Securities  Exchange
Act of 1934 ("Act") or otherwise  subject to the  liabilities of that section of
the Act but shall be subject to all other  provisions of the Act  (however,  see
the Notes).




                                  SCHEDULE 13D

CUSIP No. 628530107

1        NAME OF REPORTING PERSON
                  Carl C. Icahn

         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

2        CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                  (a) / /
                  (b) / /

3        SEC USE ONLY

4        SOURCE OF FUNDS
                  AF

5        CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
ITEMS 2(d) or 2(e)
                  /X/

6        CITIZENSHIP OR PLACE OF ORGANIZATION
                  United States of America

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:

7        SOLE VOTING POWER
                  0

8        SHARED VOTING POWER
                  18,312,200

9        SOLE DISPOSITIVE POWER
                  0

10       SHARED DISPOSITIVE POWER
                  18,312,200

11       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
                  18,312,200

12       CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
                  / /

13       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
                  6.8%

14       TYPE OF REPORTING PERSON
                  IN








                                  SCHEDULE 13D

CUSIP No. 628530107

1        NAME OF REPORTING PERSON
                  Barberry Corp.

         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

2        CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                  (a) / /
                  (b) / /

3        SEC USE ONLY

4        SOURCE OF FUNDS
                  AF

5        CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
ITEMS 2(d) or 2(e)
                  /X/

6        CITIZENSHIP OR PLACE OF ORGANIZATION
                  Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:

7        SOLE VOTING POWER
                  0

8        SHARED VOTING POWER
                  18,312,200

9        SOLE DISPOSITIVE POWER
                  0

10       SHARED DISPOSITIVE POWER
                  18,312,200

11       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
                  18,312,200

12       CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
                  / /

13       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
                  6.8%

14       TYPE OF REPORTING PERSON
                  CO


                                  SCHEDULE 13D

CUSIP No. 628530107

1        NAME OF REPORTING PERSON
                  Hopper Investments LLC

         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

2        CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                  (a) / /
                  (b) / /

3        SEC USE ONLY

4        SOURCE OF FUNDS
                  AF

5        CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
ITEMS 2(d) or 2(e)
                  /X/

6        CITIZENSHIP OR PLACE OF ORGANIZATION
                  Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:

7        SOLE VOTING POWER
                  0

8        SHARED VOTING POWER
                  18,312,200

9        SOLE DISPOSITIVE POWER
                  0

10       SHARED DISPOSITIVE POWER
                  18,312,200

11       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
                  18,312,200

12       CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
                  / /

13       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
                  6.8%

14       TYPE OF REPORTING PERSON
                  OO










                                  SCHEDULE 13D

CUSIP No. 628530107

1        NAME OF REPORTING PERSON
                  High River Limited Partnership

         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

2        CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                  (a) / /
                  (b) / /

3        SEC USE ONLY

4        SOURCE OF FUNDS
                  WC

5        CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
ITEMS 2(d) or 2(e)
                  /X/

6        CITIZENSHIP OR PLACE OF ORGANIZATION
                  Delaware

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:

7        SOLE VOTING POWER
                  18,312,200

8        SHARED VOTING POWER
                  0

9        SOLE DISPOSITIVE POWER
                  18,312,200

10       SHARED DISPOSITIVE POWER
                  0

11       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
                  18,312,200

12       CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
                  / /

13       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
                  6.8%

14       TYPE OF REPORTING PERSON
                  PN



                                  SCHEDULE 13D

CUSIP No. 628530107

1        NAME OF REPORTING PERSON
                  Gail Golden

         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

2        CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                  (a) / /
                  (b) / /

3        SEC USE ONLY

4        SOURCE OF FUNDS
                  PF

5        CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
ITEMS 2(d) or 2(e)
                  / /

6        CITIZENSHIP OR PLACE OF ORGANIZATION
                  United States of America

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH:

7        SOLE VOTING POWER
                  10,000

8        SHARED VOTING POWER
                  0

9        SOLE DISPOSITIVE POWER
                  10,000

10       SHARED DISPOSITIVE POWER
                  0

11       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
                  10,000

12       CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
                  / /

13       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
                  0.004%

14       TYPE OF REPORTING PERSON
                  IN


                                  SCHEDULE 13D

Item 1.  Security and Issuer

     This  Schedule  13D  relates  to the  common  shares,  $.50 par value  (the
"Shares"),   of  Mylan  Laboratories  Inc.,  a  Pennsylvania   corporation  (the
"Issuer").  The address of the principal executive offices of the Issuer is 1500
Corporate Drive, Canonsburg, PA 15317.


Item 2.  Identity and Background

     The  persons  filing  this   statement  are  Barberry   Corp.,  a  Delaware
corporation ("Barberry"),  Hopper Investments LLC ("Hopper"), a Delaware limited
liability  company  (,  High  River  Limited  Partnership,  a  Delaware  limited
partnership ("High River", and collectively with Barberry and Hopper, the "Icahn
Entities"),  Carl C. Icahn, a citizen of the United States of America (Mr. Icahn
collectively  with the Icahn  Entities,  the "Icahn  Group") and Gail Golden,  a
citizen  of the  United  States of  America,  the  spouse of Icahn  (Ms.  Golden
collectively with the Icahn Group, the  "Registrants").  The principal  business
address and the address of the  principal  office of (i) High River,  Hopper and
Barberry is 100 South Bedford Road,  Mount Kisco,  New York 10549,  and (ii) Mr.
Icahn and Ms.  Golden is c/o Icahn  Associates  Corp.,  767 Fifth  Avenue,  47th
Floor, New York, New York 10153.

     Barberry  is the sole member of Hopper.  Hopper is the  general  partner of
High River.  Barberry is wholly-owned  by Mr. Icahn.  Mr. Icahn is also the sole
director and executive officer of Barberry, holding positions of the Chairman of
the  Board,  President  and  Secretary.  As a result  of Mr.  Icahn's  direct or
indirect ownership of and position(s),  as applicable,  with the Icahn Entities,
Mr. Icahn is in a position to directly and  indirectly  determine the investment
and voting decisions made by the Icahn Entities.

     Each of  Barberry,  Hopper  and High  River  is  primarily  engaged  in the
business of holding and investing in securities.  Mr. Icahn's present  principal
occupation or  employment is acting as the Chairman of the Board,  President and
the  Director  of  Starfire   Holding   Corporation,   a  Delaware   corporation
("Starfire"),  and as the  Chairman  of the Board and  Director  of  various  of
Starfire's  subsidiaries.  Starfire  is  primarily  engaged in the  business  of
holding,  either directly or indirectly,  equity positions in its  subsidiaries.
Mr.  Icahn is also a majority  shareholder,  the  Chairman  of the Board and the
Director of American Railcar Industries,  Inc. ("ARI"), a Missouri  corporation.
ARI is primarily engaged in the business of manufacturing, managing, leasing and
selling of  railroad  freight and tank cars.  Gail  Golden's  present  principal
occupation or employment is acting as the Chief Executive Officer of Maupintour,
LLC,  a Delaware  limited  liability  company  ("Maupintour"),  a tour  operator
indirectly  wholly-owned  by Mr.  Icahn.  Ms.  Golden also acts as an officer of
various other entities controlled by Mr. Icahn.

     Except  as  set  forth  on  Schedule  A  attached  hereto,  neither  of the
Registrants nor any of their executive officers,  directors, managers or persons
performing  similar functions has, during the past five years (a) been convicted
in a criminal proceeding  (excluding traffic violations or similar misdemeanors)
or (b) been a party to a civil proceeding of a judicial or  administrative  body
of competent  jurisdiction  and as a result of such proceeding was or is subject
to a  judgment,  decree  or final  order  enjoining  future  violations  of,  or
prohibiting or mandating activities subject to, federal or state securities laws
or a finding of any violation with respect to such laws.


Item 3.  Source and Amount of Funds or Other Consideration

     As of the close of business on September 7, 2004,  the  aggregate  purchase
price of 18,312,200 Shares owned by Icahn Group was  $307,089,927.75  (excluding
commissions). The source of funding for the purchase of these Shares was general
working capital of High River. As of the close of business on September 7, 2004,
the  aggregate  purchase  price of 10,000  Shares  purchased  by Ms.  Golden was
$167,706.15 (excluding  commissions).  The source of funding for the purchase of
these Shares were personal funds of Ms. Golden.


Item 4.  Purpose of Transaction

     The  Registrants  acquired the Shares because they believe the Shares to be
undervalued  in the  market  place.  Depending  on market  conditions  and other
factors, the Registrants may acquire additional Shares at any time and from time
to time, and may dispose of all or any portion of the Shares at any time or from
time to time.  The  Registrants'  present  intention  is to oppose  and  solicit
proxies against the Issuer's proposed merger with King Pharmaceuticals, Inc. The
Registrants have made plans to meet with Robert J. Coury, the Issuer's CEO, this
week.

     SECURITY  HOLDERS  ARE  ADVISED  TO READ  THE  PROXY  STATEMENT  AND  OTHER
DOCUMENTS  RELATED TO  SOLICITATION  OF PROXIES BY MR. ICAHN AND HIS  AFFILIATES
FROM THE STOCKHOLDERS OF MYLAN  LABORATORIES INC. FOR USE AT ITS SPECIAL MEETING
WHEN  AND  IF  THEY  BECOME  AVAILABLE   BECAUSE  THEY  WILL  CONTAIN  IMPORTANT
INFORMATION.  WHEN AND IF COMPLETED,  A DEFINITIVE PROXY STATEMENT AND A FORM OF
PROXY WILL BE MAILED TO  STOCKHOLDERS  OF MYLAN  LABORATORIES  INC.  AND WILL BE
AVAILABLE AT NO CHARGE AT THE  SECURITIES AND EXCHANGE  COMMISSION'S  WEBSITE AT
HTTP://WWW.SEC.GOV.


Item 5.  Interest in Securities of the Issuer

     (a)  As of the  close  of  the  business  day on  September  7,  2004,  the
Registrants  may be deemed to  beneficially  own, in the  aggregate,  18,312,200
Shares,  representing  approximately  6.8% of the  Issuer's  outstanding  Shares
(based upon 268,733,386  Shares stated to be outstanding as of August 3, 2004 by
the Issuer in the  Issuer's  Form 10Q filed  with the  Securities  and  Exchange
Commission on August 9, 2004).

     (b) Each of High  River  and Ms.  Golden  has sole  voting  power  and sole
dispositive   power  with  regard  to  18,312,200   Shares  and  10,000  Shares,
respectively. Each of Barberry, Hopper and Mr. Icahn has shared voting power and
shared   dispositive   power  with  regard  to  all  of  the  18,312,200  Shares
beneficially owned by High River.

     Each of Barberry, Hopper and Mr. Icahn, by virtue of their relationships to
High River (as disclosed in Item 2), may be deemed to beneficially  own (as that
term is  defined  in Rule  13d-3  under the Act) the  Shares,  which  High River
beneficially owns. Each of Mr. Icahn,  Hopper and Barberry disclaims  beneficial
ownership of such Shares for all other  purposes.  Mr.  Icahn,  by virtue of his
relationship  to  Ms.  Golden  (as  disclosed  in  Item  2),  may be  deemed  to
beneficially  own (as that  term is  defined  in Rule  13d-3  under the Act) the
Shares,  which Ms. Golden  beneficially  owns.  Mr. Icahn  disclaims  beneficial
ownership of such Shares.

     (c) The  following  table sets forth all  transactions  with respect to the
Shares effected during the past sixty (60) days by any of the  Registrants.  All
such  transactions  were  effected  in  the  open  market,  the  table  excludes
commissions paid.


                         

------------------------------- ---------------------------- ----------------------------- ----------------------------
                                                             No. of Shares                 Price
Name                            Date                         Purchased                     Per Share
------------------------------- ---------------------------- ----------------------------- ----------------------------
------------------------------- ---------------------------- ----------------------------- ----------------------------
High River                      7/26/04                      1,000,000                     $15.7285
------------------------------- ---------------------------- ----------------------------- ----------------------------
------------------------------- ---------------------------- ----------------------------- ----------------------------
High River                      7/27/04                      1,700,000                     $14.7295
------------------------------- ---------------------------- ----------------------------- ----------------------------
------------------------------- ---------------------------- ----------------------------- ----------------------------
High River                      7/28/04                        650,000                     $14.9092
------------------------------- ---------------------------- ----------------------------- ----------------------------
------------------------------- ---------------------------- ----------------------------- ----------------------------
High River                      8/19/04                      4,635,000                     $16.9509
------------------------------- ---------------------------- ----------------------------- ----------------------------
------------------------------- ---------------------------- ----------------------------- ----------------------------
High River                      8/19/04                         22,000                     $16.8263
------------------------------- ---------------------------- ----------------------------- ----------------------------
------------------------------- ---------------------------- ----------------------------- ----------------------------
High River                      8/20/04                      2,100,000                     $16.9689
------------------------------- ---------------------------- ----------------------------- ----------------------------
------------------------------- ---------------------------- ----------------------------- ----------------------------
High River                      8/23/04                         930,000                    $17.1674
------------------------------- ---------------------------- ----------------------------- ----------------------------
------------------------------- ---------------------------- ----------------------------- ----------------------------
High River                      8/24/04                         994,500                    $17.0618
------------------------------- ---------------------------- ----------------------------- ----------------------------
------------------------------- ---------------------------- ----------------------------- ----------------------------
High River                      8/25/04                         700,000                    $17.1644
------------------------------- ---------------------------- ----------------------------- ----------------------------
------------------------------- ---------------------------- ----------------------------- ----------------------------
High River                      8/26/04                         600,000                    $17.2795
------------------------------- ---------------------------- ----------------------------- ----------------------------
------------------------------- ---------------------------- ----------------------------- ----------------------------
High River                      8/27/04                         692,600                    $17.3699
------------------------------- ---------------------------- ----------------------------- ----------------------------
------------------------------- ---------------------------- ----------------------------- ----------------------------
High River                      8/30/04                       1,178,000                    $17.2892
------------------------------- ---------------------------- ----------------------------- ----------------------------
------------------------------- ---------------------------- ----------------------------- ----------------------------
High River                      8/31/04                         600,000                    $17.3651
------------------------------- ---------------------------- ----------------------------- ----------------------------
------------------------------- ---------------------------- ----------------------------- ----------------------------
High River                      9/01/04                         480,000                    $17.3492
------------------------------- ---------------------------- ----------------------------- ----------------------------
------------------------------- ---------------------------- ----------------------------- ----------------------------
High River                      9/02/04                         259,000                    $17.3268
------------------------------- ---------------------------- ----------------------------- ----------------------------
------------------------------- ---------------------------- ----------------------------- ----------------------------
High River                      9/03/04                         211,100                    $17.5291
------------------------------- ---------------------------- ----------------------------- ----------------------------
------------------------------- ---------------------------- ----------------------------- ----------------------------
High River                      9/07/04                       1,560,000                    $17.7634
------------------------------- ---------------------------- ----------------------------- ----------------------------
------------------------------- ---------------------------- ----------------------------- ----------------------------
Gail Golden                     8/03/04                           1,000                    $15.39
------------------------------- ---------------------------- ----------------------------- ----------------------------
------------------------------- ---------------------------- ----------------------------- ----------------------------
Gail Golden                     8/03/04                           2,000                    $15.34
------------------------------- ---------------------------- ----------------------------- ----------------------------
------------------------------- ---------------------------- ----------------------------- ----------------------------
Gail Golden                     9/02/04                           7,000                    $17.3146
------------------------------- ---------------------------- ----------------------------- ----------------------------



Item 6.           Contracts, Arrangements, Understandings or Relationship with
Respect to Securities of the Issuer

     None of the Registrants has any contracts, arrangements,  understandings or
relationships  (legal  or  otherwise)  with  any  person  with  respect  to  any
securities of the Issuer, including but not limited to the transfer or voting of
any  of  the  securities,   finder's  fees,  joint  ventures,   loan  or  option
arrangements,  puts or calls,  guarantees  of  profits,  division  of profits or
losses, or the giving or withholding of proxies.


Item 7.  Material to be Filed as Exhibits

1        Joint Filing Agreement of the Registrants


                                                     SIGNATURE

     After  reasonable  inquiry  and to the  best  of  each  of the  undersigned
knowledge and belief, each of the undersigned certifies that the information set
forth in this statement is true, complete and correct.

Dated:  September 7, 2004

BARBERRY CORP.


By:      /s/ Edward E. Mattner
         Name: Edward E. Mattner
         Title: Authorized Signatory


HOPPER INVESTMENTS LLC
By:      BARBERRY CORP., Sole Member



         By:      /s/ Edward E. Mattner
                  Name: Edward E. Mattner
                  Title: Authorized Signatory


HIGH RIVER LIMITED PARTNERSHIP
By:      HOPPER INVESTMENTS LLC, General Partner
         By:      BARBERRY CORP., Sole Member



                  By:      /s/ Edward E. Mattner
                  Name: Edward E. Mattner
                  Title: Authorized Signatory



/s/ Carl C. Icahn
CARL C. ICAHN


/s/ Gail Golden
GAIL GOLDEN


             [Signature Page of Schedule 13D with respect to Mylan]

                                    JOINT FILING AGREEMENT

     In accordance with Rule 13d-1(f) under the Securities Exchange Act of 1934,
as amended,  the persons named below agree to the joint filing on behalf of each
of them of a statement  on Schedule  13D  (including  amendments  thereto)  with
respect to the common stock,  $.50 par value,  of Mylan  Laboratories  Inc., and
further agree that this Joint Filing Agreement be included as an Exhibit to such
joint filings. In evidence thereof, the undersigned, being duly authorized, have
executed this Joint Filing Agreement this 7th day of September, 2004.

BARBERRY CORP.


By:      /s/ Edward E. Mattner
         Name: Edward E. Mattner
         Title: Authorized Signatory

HOPPER INVESTMENTS LLC
By:      BARBERRY CORP., Sole Member



         By:      /s/ Edward E. Mattner
                  Name: Edward E. Mattner
                  Title: Authorized Signatory


HIGH RIVER LIMITED PARTNERSHIP
By:      HOPPER INVESTMENTS LLC, General Partner
         By:      BARBERRY CORP., Sole Member



                  By:      /s/ Edward E. Mattner
                  Name: Edward E. Mattner
                  Title: Authorized Signatory



/s/ Carl C. Icahn
CARL C. ICAHN


/s/ Gail Golden
GAIL GOLDEN

 [Signature Page of Joint Filing Agreement to Schedule
 13D with respect to Mylan]


                                   SCHEDULE A

     On January 5, 2001, Reliance Group Holdings, Inc. ("Reliance") commenced an
action in the United States District Court for the Southern District of New York
against  "Carl  C.  Icahn,   Icahn  Associates  Corp.  and  High  River  Limited
Partnership"  alleging  that High  River's  tender  offer for Reliance 9% senior
notes violated  Section 14(e) of the Exchange Act.  Reliance  sought a temporary
restraining  order and  preliminary and permanent  injunctive  relief to prevent
defendants  from purchasing the notes.  The Court initially  imposed a temporary
restraining  order.  Defendants then supplemented the tender offer  disclosures.
The Court  conducted a hearing on the  disclosures  and other matters  raised by
Reliance.  It then denied  plaintiffs'  motion for a preliminary  injunction and
ordered dissolution of its temporary  restraining order following  dissemination
of the supplement.

     Reliance took an immediate appeal to the United States Court of Appeals for
the Second  Circuit and sought a stay to  restrain  defendants  from  purchasing
notes  during the  pendency of the appeal.  On January  30,  2001,  the Court of
Appeals denied plaintiff's stay application. On January 30, Reliance also sought
a  further  temporary  restraining  order  from the  District  Court.  The Court
considered the matter and reimposed its original  restraint  until noon the next
day, at which time the restraint was dissolved. The appeal was argued on March 9
and denied on March 22, 2001.