<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM PFIZER INC.
AND SUBSIDIARY COMPANIES CONDENSED CONSOLIDATED BALANCE SHEET FOR OCTOBER 1,
2000 AND CONDENSED CONSOLIDATED STATEMENT OF INCOME FOR THE NINE MONTHS ENDED
OCTOBER 1, 2000 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH
FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER>1,000,000

                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-2000
<PERIOD-END>                               OCT-01-2000
<CASH>                                           1,341
<SECURITIES>                                     5,883
<RECEIVABLES>                                    5,638
<ALLOWANCES>                                     (227)
<INVENTORY>                                      2,723
<CURRENT-ASSETS>                                17,168
<PP&E>                                          14,014
<DEPRECIATION>                                 (4,836)
<TOTAL-ASSETS>                                  33,488
<CURRENT-LIABILITIES>                           12,344
<BONDS>                                          1,257
<PREFERRED-MANDATORY>                               00
<PREFERRED>                                         00
<COMMON>                                           336
<OTHER-SE>                                      27,917
<TOTAL-LIABILITY-AND-EQUITY>                    33,488
<SALES>                                         21,468
<TOTAL-REVENUES>                                21,468
<CGS>                                            3,556
<TOTAL-COSTS>                                    3,556
<OTHER-EXPENSES>                                 3,172
<LOSS-PROVISION>                                    16
<INTEREST-EXPENSE>                                 309
<INCOME-PRETAX>                                  3,862
<INCOME-TAX>                                     1,549
<INCOME-CONTINUING>                              2,306
<DISCONTINUED>                                      00
<EXTRAORDINARY>                                     00
<CHANGES>                                           00
<NET-INCOME>                                     2,306
<EPS-BASIC>                                        .37
<EPS-DILUTED>                                      .36