<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM PFIZER INC.
AND SUBSIDIARY COMPANIES CONDENSED CONSOLIDATED BALANCE SHEET AND CONDENSED
STATEMENT OF INCOME FOR THE PERIOD ENDED MARCH 30, 1997 AND IS QUALIFIED IN ITS
ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000,000
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               MAR-30-1997
<CASH>                                           1,230
<SECURITIES>                                       643
<RECEIVABLES>                                    2,588
<ALLOWANCES>                                      (60)
<INVENTORY>                                      1,594
<CURRENT-ASSETS>                                 6,926
<PP&E>                                           6,023
<DEPRECIATION>                                 (2,175)
<TOTAL-ASSETS>                                  15,053
<CURRENT-LIABILITIES>                            5,780
<BONDS>                                            732
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                            35
<OTHER-SE>                                      10,242
<TOTAL-LIABILITY-AND-EQUITY>                    15,053
<SALES>                                          3,002
<TOTAL-REVENUES>                                 3,001
<CGS>                                              545
<TOTAL-COSTS>                                      545
<OTHER-EXPENSES>                                   413
<LOSS-PROVISION>                                     5
<INTEREST-EXPENSE>                                  37
<INCOME-PRETAX>                                    862
<INCOME-TAX>                                       259
<INCOME-CONTINUING>                                602
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                       602
<EPS-PRIMARY>                                      .93
<EPS-DILUTED>                                      .93