Pfizer (PFE) 8-K Wyeth's Audited Historical Consolidated Financial Statements and Related Notes

Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in the Registration Statement on Form S-3 (No. 333-140989 and No. 333-141729) and Form S-8 (No. 2-87473, No. 33-34139, No. 33-38708, No. 33-44053, No. 33-49631, No. 33-53713, No. 33-55771, No. 33-56979, No. 33-02061, No. 333-36371, No. 333-50899, No. 333-76839, No. 333-90975, No. 333-39606, No. 333-59660, No. 333-59654, No. 333-104581, No. 333-104582, No. 333-110571, No. 333-111333, No. 333-114852, and No. 333-140987) of Pfizer of our report dated February 26, 2009 relating to the financial statements of Wyeth, which appears in this Current Report on Form 8-K.

\s\ PricewaterhouseCoopers LLP

PricewaterhouseCoopers LLP

Florham Park, New Jersey

March 13, 2009