**UNITED STATES            SECURITIES AND EXCHANGE COMMISSION**Washington, D.C. 20549 **SCHEDULE 13D            (RULE 13D-101)INFORMATION TO            BE INCLUDED IN STATEMENTS FILED PURSUANT TO            13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO 13d-2(a)(AMENDMENT NO.            3)
**ONYX PHARMACEUTICALS,            INC.**            (Name of Issuer)

**COMMON STOCK, PAR VALUE $0.001 PER            SHARE  **            (Title of Class of Securities)

**683399 10 9 **(CUSIP Number)

 

Margaret M. Foran          Secretary          Warner-Lambert Company          235 East 42nd Street          New York, NY 10591          (212) 573-2323          (Name, Address and Telephone Number of Person          Authorized to Receive Notices and Communications)
**March 8, 2001**          (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 which            is the subject of this Schedule 13D, and is filing this schedule because            of Rule 13d(e), 13d-1(f) or 13d-1(g), check the following box     (  ).

CUSIP NO. 683399 10 9                                   13D

______________________________________________________________________________
1.   NAMES OF REPORTING PERSONS                I.R.S.          IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY).
               WARNER-LAMBERT          COMPANY (I.R.S. EMPLOYER IDENTIFICATION NUMBER                                   22-1598912)          _____________________________________________________________________                          2.   CHECK THE APPROPRIATE BOX IF A MEMBER OF          A GROUP                     NOT          APPLICABLE                                                  (a)______                                    (b)______ 

 _____________________________________________________________________           3.      SEC USE ONLY

_____________________________________________________________________          4.     SOURCE OF FUNDS                  WC

_____________________________________________________________________          5.     CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS          IS REQUIRED PURSUANT                  TO  ITEM 2(d)            or  2(e)                                                                         (  )

 _____________________________________________________________________                      6.     CITIZENSHIP OR PLACE OF ORGANIZATION          
               DELAWARE

                        _________________________________________________________                                                        7. SOLE          VOTING POWER                                                           - 1,398,079 -                    NUMBER OF  _________________________________________________________                        SHARES                    8.          SHARED VOTING POWER            BENEFICIALLY                        0           OWNED BY      _______________________________________________________      EACH                   9.          SOLE DISPOSITIVE POWERREPORTING                            - 1,398,079          -    PERSON         _______________________________________________________      WITH                   10.          SHARED DISPOSITIVE POWER                                                        0          
_____________________________________________________________________
 11.       AGGREGATE          AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
                                              - 1,398,079 -          _____________________________________________________________________
12.      CHECK          IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN                     SHARES             (  ) 
                                     NOT          APPLICABLE _____________________________________________________________________
13.       PERCENT          OF CLASS REPRESENTED BY AMOUNT IN ROW (11)                      -          7.8% - (Based on 17,947,054 shares of common stock outstanding as of                      November          14, 2000)          _____________________________________________________________________          14.          TYPE          OF REPORTING PERSON                          CO
     This Amendment No. 3 to the Statement            on Schedule13D filed by             Warner-Lambert Company, a Delaware corporation ("Purchaser"),            on May 9, 1996, as amended on July 1, 1997 and February 28, 2000 (the                        "Schedule 13D"), relates to the common stock, par value            $.001 per share (the            "Common Stock"), of Onyx Pharmaceuticals, Inc., a Delaware            corporation            ("Issuer"). All capitalized terms used but not defined herein            have the meanings            ascribed to them in the Schedule 13D.

          _______________________________________________________________________________          
ITEM 2.     IDENTITY          AND BACKGROUND.
Item 2 to the Schedule 13D is amended by adding the following:

     Purchaser was acquired by Pfizer Inc.          on June 19, 2000. The address of Purchaser's principal business is 235          East 42nd Street, New York, NY 10017.

ITEM 3.   SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION.

     Purchaser obtained the $5 million used          to purchase the shares of Common Stock pursuant to the Issuer's exercise          of the Second Put Right   (as defined in the Stock Put and          Purchase Agreement)  from its working capital.

ITEM 5.   INTEREST IN SECURITIES OF THE ISSUER.

     Item 5 is hereby amended and restated          in its entirety as follows:

                See          Items 7-11 and Item 13 of the cover page hereto.

 

 
**SIGNATURE**
     After          reasonable inquiry and to the best of my knowledge and belief, I certify          that the information set forth in this statement is true, complete and          correct.
   
**Date:** March 14, 2001

 

 

 
 WARNER-LAMBERT COMPANY                 
**By:**/s/ MARGARET          M. FORAN**Name:** Margaret M. Foran **Title:**   Secretary

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