<DOCUMENT>
<TYPE>EX-99.6
<SEQUENCE>16
<FILENAME>y62552exv99w6.txt
<DESCRIPTION>CONSENT OF FRED HASSAN
<TEXT>
<PAGE>

                                                                    EXHIBIT 99.6

                            CONSENT OF PERSON NAMED
                         AS ABOUT TO BECOME A DIRECTOR

     I hereby consent to my being named in the Registration Statement on Form
S-4 of Pfizer Inc. (the "Company") as a person who will become a director of the
Company upon consummation of the transactions contemplated therein.

August 12, 2002

                                     /s/ FRED HASSAN
                                     -------------------------------------------
                                     Fred Hassan

</TEXT>
</DOCUMENT>
