<TABLE> <S> <C>
<ARTICLE> 5
<LEGEND>
This Schedule contains financial data extracted from Schering-Plough Corporation
and subsidiaries consolidated financial statements for the six months ended June
30, 2000, and is qualified in its entirety by reference to such financial
statements.
</LEGEND>
<MULTIPLIER> 1000000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-END> JUN-30-2000
<CASH> 2039
<SECURITIES> 0
<RECEIVABLES> 1416
<ALLOWANCES> 0
<INVENTORY> 951
<CURRENT-ASSETS> 5472
<PP&E> 4544
<DEPRECIATION> 1515
<TOTAL-ASSETS> 10123
<CURRENT-LIABILITIES> 3536
<BONDS> 0
0
0
<COMMON> 1015
<OTHER-SE> 4608
<TOTAL-LIABILITY-AND-EQUITY> 10123
<SALES> 5048
<TOTAL-REVENUES> 5048
<CGS> 946
<TOTAL-COSTS> 946
<OTHER-EXPENSES> 635
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 0
<INCOME-PRETAX> 1660
<INCOME-TAX> 398
<INCOME-CONTINUING> 1262
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 1262
<EPS-BASIC> .86
<EPS-DILUTED> .85
</TABLE>