EXHIBIT 32

                    CERTIFICATION OF CHIEF EXECUTIVE OFFICER

      Pursuant to 18 U.S.C. Section 1350, as created by Section 906 of the
Sarbanes-Oxley Act of 2002, the undersigned officer of Amgen Inc. (the
"Company") hereby certifies that:

      (i)   the accompanying Quarterly Report on Form 10-Q of the Company for
            the three and nine months ended September 30, 2004 (the "Report")
            fully complies with the requirements of Section 13(a) or Section
            15(d), as applicable, of the Securities Exchange Act of 1934, as
            amended; and

      (ii)  information contained in the Report fairly presents, in all material
            respects, the financial condition and results of operations of the
            Company.

Dated: November 9, 2004                        /S/ KEVIN W. SHARER
                                    --------------------------------------
                                                 Kevin W. Sharer
                                    Chairman of the Board, Chief Executive
                                              Officer and President

      A signed original of this written statement required by Section 906 of the
Sarbanes-Oxley Act of 2002 ("Section 906"), or other document authenticating,
acknowledging, or otherwise adopting the signature that appears in typed form
within the electronic version of this written statement required by Section 906,
has been provided to Amgen Inc. and will be retained by Amgen Inc. and furnished
to the Securities and Exchange Commission or its staff upon request.



                    CERTIFICATION OF CHIEF FINANCIAL OFFICER

      Pursuant to 18 U.S.C. Section 1350, as created by Section 906 of the
Sarbanes-Oxley Act of 2002, the undersigned officer of Amgen Inc. (the
"Company") hereby certifies that:

      (i)   the accompanying Quarterly Report on Form 10-Q of the Company for
            the three and nine months ended September 30, 2004 (the "Report")
            fully complies with the requirements of Section 13(a) or Section
            15(d), as applicable, of the Securities Exchange Act of 1934, as
            amended; and

      (ii)  information contained in the Report fairly presents, in all material
            respects, the financial condition and results of operations of the
            Company.

Dated: November 9, 2004                  /S/ RICHARD D. NANULA
                                  ------------------------------------
                                           Richard D. Nanula
                                       Executive Vice President
                                      and Chief Financial Officer

      A signed original of this written statement required by Section 906 of the
Sarbanes-Oxley Act of 2002 ("Section 906"), or other document authenticating,
acknowledging, or otherwise adopting the signature that appears in typed form
within the electronic version of this written statement required by Section 906,
has been provided to Amgen Inc. and will be retained by Amgen Inc. and furnished
to the Securities and Exchange Commission or its staff upon request.