<ARTICLE> 5 <LEGEND> This schedule contains summary financial information extracted from Schering-Plough Corporation and subsidiaries consolidated Financial Statements for the six months ended June 30, 1998, and is qualified in its entirety by reference to such financial statements. </LEGEND> <MULTIPLIER> 1000000 <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-1998 <PERIOD-END> JUN-30-1998 <CASH> 707 <SECURITIES> 0 <RECEIVABLES> 840 <ALLOWANCES> 0 <INVENTORY> 745 <CURRENT-ASSETS> 3280 <PP&E> 3835 <DEPRECIATION> 1297 <TOTAL-ASSETS> 6965 <CURRENT-LIABILITIES> 2755 <BONDS> 46 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 1015 <OTHER-SE> 2386 <TOTAL-LIABILITY-AND-EQUITY> 6965 <SALES> 4032 <TOTAL-REVENUES> 4032 <CGS> 803 <TOTAL-COSTS> 803 <OTHER-EXPENSES> 485 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 0 <INCOME-PRETAX> 1199 <INCOME-TAX> 294 <INCOME-CONTINUING> 905 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 905 <EPS-PRIMARY> 1.23 <EPS-DILUTED> 1.22