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 September 30, 2002, as filed with the Securities
and Exchange Commission on November 13, 2002 (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: November 13, 2002

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