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

                                  SCHEDULE 13D

                    Under the Securities Exchange Act of 1934
                               (Amendment No. 1)*

                             Mylan Laboratories Inc.
                                (Name of Issuer)

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

                                    628530107
                                 (CUSIP Number)

                              Yevgeny Fundler, Esq.
                                     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)

                               September 16, 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 Section  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
                  23,906,800

9        SOLE DISPOSITIVE POWER
                  0

10       SHARED DISPOSITIVE POWER
                  23,906,800

11       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
                  23,906,800

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

13       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
                  8.90%

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
                  23,906,800

9        SOLE DISPOSITIVE POWER
                  0

10       SHARED DISPOSITIVE POWER
                  23,906,800

11       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
                  23,906,800

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

13       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
                  8.90%

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
                  23,906,800

9        SOLE DISPOSITIVE POWER
                  0

10       SHARED DISPOSITIVE POWER
                  23,906,800

11       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
                  23,906,800

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

13       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
                  8.90%

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
                  23,906,800

8        SHARED VOTING POWER
                  0

9        SOLE DISPOSITIVE POWER
                  23,906,800

10       SHARED DISPOSITIVE POWER
                  0

11       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
                  23,906,800

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

13       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
                  8.90%

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 filed by the  Registrants  with the U.S.  Securities  and
Exchange Commission on September 7, 2004, relates to the common shares, $.50 par
value (the "Shares"),  of Mylan  Laboratories  Inc., a Pennsylvania  corporation
(the  "Issuer")  is amended  to furnish  information  as set forth  herein.  All
capitalized  terms not otherwise defined shall have the meaning ascribed to such
terms in the previously filed statement on Schedule 13D.


Item 3.  Source and Amount of Funds or Other Consideration

         Item 3 is hereby amended in its entirety to read as follows:

     As of the close of business on September 17, 2004,  the aggregate  purchase
price of 23,906,800 Shares owned by Icahn Group was  $414,518,724.79  (excluding
commissions). The source of funding for the purchase of these Shares was general
working  capital of High River and  pursuant  to margin  accounts in the regular
course of  business.  As of the close of business on  September  17,  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


         Item 4 is hereby amended to add the following:

     On September 10, 2004,  the  Registrants  met with  representatives  of the
Issuer's management  including the Chief Executive Officer,  Robert J. Coury. At
the meeting, the parties discussed their positions regarding the proposed merger
with  King.  The  meeting  did not  result in any  agreements,  arrangements  or
understandings between the parties. Subsequent to the meeting, Mr. Icahn and Mr.
Coury communicated further and scheduled another meeting.

     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  17,  2004,  the
Registrants  may be deemed to  beneficially  own, in the  aggregate,  23,906,800
Shares,  representing  approximately  8.90% 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  23,906,800   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  23,906,800  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 since the most recent filing on Schedule 13D by the Registrants
with  respect to the Shares.  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                      9/13/04                      1,000,000                     19.0014
------------------------------- ---------------------------- ----------------------------- ----------------------------
------------------------------- ---------------------------- ----------------------------- ----------------------------
High River                      9/14/04                      1,030,000                     19.1187
------------------------------- ---------------------------- ----------------------------- ----------------------------
------------------------------- ---------------------------- ----------------------------- ----------------------------
High River                      9/15/04                        589,600                    18.9449
------------------------------- ---------------------------- ----------------------------- ----------------------------
------------------------------- ---------------------------- ----------------------------- ----------------------------
High River                      9/16/04                      1,750,000                     19.3520
------------------------------- ---------------------------- ----------------------------- ----------------------------
------------------------------- ---------------------------- ----------------------------- ----------------------------
High River                      9/17/04                      1,225,000                     19.4432
------------------------------- ---------------------------- ----------------------------- ----------------------------





                                                     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 17, 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 Amendment No. 1 to
                      Schedule 13D with respect to Mylan]