Item 5.03 Amendments to Articles of Incorporation or Bylaws; Change in
Fiscal Year.
On October 23, 2008, the Board of Directors of Pfizer Inc. (the "Company") approved certain amendments to the Company's By-laws as, follows:
- The By-laws were amended to change Article I, Section 9 (Special Meetings) to provide that the Chair of the Board or the Secretary shall call a special meeting of the stockholders at the request in writing of one or more record holders of the Company's stock representing in the aggregate not less than twenty-five percent (25%) of the total number of shares of stock entitled to vote on the matter or matters to be brought before the proposed special meeting.

- The By-laws were be amended to make related and conforming changes to Article II, Section 1 (Number; Election; Term); Article II, Section 12 (Eligibility to Make Nominations); and Article II, Section 13 (Procedure for Nominations by Stockholders).

The preceding is qualified in its entirety by reference to the Company's amended and restated By-laws, which are attached hereto as Exhibit 3.1 and are incorporated herein by reference.