**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**FORM 8-K**



CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE
  SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): June 25, 2008

**PFIZER INC.**
  (Exact name of registrant as specified in its charter)

|**Delaware**                                                                                       | **1-3619**               | **13-5315170**                      
|-------------------------------------------------------------------------------------------------- | ------------------------ | ------------------------------------
|(State or other Jurisdiction of incorporation)                                                     | (Commission File Number) | (I.R.S. Employer Identification No.)
|**235 East 42nd Street 
          New York, New York**(Address of principal executive offices)**** |                          | **10017**
        (Zip Code)        

> Registrant's telephone number, including area code:(212) 573-2323 **Not Applicable**
>       (Former Name or Former Address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended
  to simultaneously satisfy the obligation of the registrant under any of the
  following provisions (see General Instruction A.2. below):

[ ] Written communication pursuant to Rule 425 under the Securities Act (17
  CFR 230.425)

[ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17
  CFR 240.14a-12)

[ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange
  Act (17 CFR 240.14d-2(b))

[ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange
  Act (17 CFR 240.13e-4(c))



|**Item 5.03**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            | Amendments to Articles of Incorporation or Bylaws; Change
      in Fiscal Year.
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------
|On June 25, 2008, the Board of Directors of Pfizer Inc. (the "Company")
        approved certain amendments to the Company's By-laws.
            The By-laws were amended
          to add a new Section 14 to Article I , which clarifies the applicability
          of the advance notice provisions to all stockholder proposals, whether
          submitted for inclusion in the Company's proxy statement or included
          in an independently financed proxy statement. 
               Each of Article I , Section 13,
          governing submission of a proposal by a stockholder, and Article II
          , Sections 13 and 14, applicable in the case of a nomination of a person
          for election as a director, were amended to require a stockholder to
          include the following additional information in the advance notice to
          the Company: the class and number of shares owned (beneficially and
          of record) by the stockholder; a description of any agreements the stockholder
          has with affiliates or third parties concerning the stockholder proposal
          or director nomination; a description of any derivative or short positions,
          profit interests, options, hedging transactions, and borrowed or loaned
          shares the stockholder has with respect to the Company's stock; a representation
          that the stockholder is entitled to vote at the meeting and intends
          to attend the meeting to present the proposal or director nomination;
          and whether the stockholder intends to conduct a proxy solicitation.
          
              The By-laws were amended to add a new
          Section 15 to Article II, which requires a stockholder nominating a
          person for election as a director to include in the advance notice certain
          biographical information about each director nominee as well as a questionnaire
          completed by each director nominee that requires the nominee to disclose
          any voting commitments the nominee may have with a third person and
          commit to comply with the Company's corporate governance standards if
          elected.
      The preceding is qualified in its entirety by reference to the Company's
        By-laws, which are attached hereto as Exhibit 3.1 and are incorporated
        herein by reference. 
        .



|**Item 9.01** | **Financial Statements and Exhibits** | 
|------------- | ------------------------------------- | 

|(d) Exhibits |                                                   | 
|------------ | ------------------------------------------------- | 
|Exhibit 3.1  | Pfizer Inc. By-laws, as amended on June 25, 2008. | 



**SIGNATURE**

Under the requirements of the Securities Exchange Act of 1934, the registrant
  has caused this report to be signed on its behalf by the authorized undersigned.

|                     |  | PFIZER INC.                                                                                                 
|-------------------- |  | ------------------------------------------------------------------------------------------------------------
|                     |  |                                                                                                             
|                     |  | By: /s/ Margaret M. Foran
        Margaret M. Foran                                                         
|                     |  | Title: Senior Vice President-Corporate
        Governance, Associate General Counsel and Corporate Secretary
|Dated: June 26, 2008 |  |                                                                                                             

> 

EXHIBIT INDEX

|Exhibit No. | Description                                      
|----------- | -------------------------------------------------
|            |                                                  
|3.1         | Pfizer Inc. By-laws, as amended on June 25, 2008.