Exhibit 12



                     SCHERING-PLOUGH CORPORATION AND SUBSIDIARIES
                  COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES
                               (Dollars in millions)



                                              Year Ended December 31,                  
 
                                           1996      1995      1994      1993      1992    1991 
                                                                      


Income Before Income Taxes from
   Continuing Operations . . . . . .   $1,606.4  $1,394.7  $1,226.7  $1,073.1  $  962.8 $ 847.6

Add : Fixed Charges
  Interest Expense . . . . . . . . .       45.4      57.6      56.2      48.2      55.4    65.3
  1/3 Rentals. . . . . . . . . . . .       12.2      10.5       8.7       8.0       7.7     7.0
  Capitalized Interest . . . . . . .       10.8      11.4      11.4      12.7      15.8    11.8
    Total Fixed Charges. . . . . . .       68.4      79.5      76.3      68.9      78.9    84.1

Less: Capitalized Interest . . . . .       10.8      11.4      11.4      12.7      15.8    11.8
Add : Amortization of
 Capitalized Interest. . . . . . . .        5.0       4.8       4.1       3.5       4.1     4.0

Earnings Before Income Taxes and
 Fixed Charges (other than
 Capitalized Interest) . . . . . . .   $1,669.0  $1,467.6  $1,295.7  $1,132.8  $1,030.0 $ 923.9 
  

Ratio of Earnings to Fixed Charges .       24.4      18.5      17.0      16.4      13.1    11.0



"Earnings" consist of income before income taxes and fixed charges (other than capitalized 
interest).  "Fixed charges" consist of interest expense, capitalized interest and one-third of 
rentals which Schering-Plough believes to be a reasonable estimate of an interest factor on 
leases.


WD011203.94K