Exhibit 99.2


                            CERTIFICATION PURSUANT TO
                             18 U.S.C. SECTION 1350,
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002


In connection with the Quarterly Report of Wyeth (the "Company") on Form 10-Q
for the fiscal quarter ended March 31, 2003, as filed with the Securities and
Exchange Commission on May 15, 2003 (the "Report"), I, Kenneth J. Martin, Chief
Financial Officer of the Company, certify, pursuant to 18 U.S.C. ss. 1350, as
adopted pursuant to ss. 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of section 13(a) or 15(d) of
the Securities Exchange Act of 1934; and

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



Dated:  May 15, 2003

                                     By /s/ Kenneth J. Martin
                                        ---------------------
                                            Kenneth J. Martin
                          Executive Vice President and Chief Financial Officer