EXHIBIT 12 WARNER-LAMBERT COMPANY AND SUBSIDIARIES COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES YEARS ENDED DECEMBER 31, ------------------------------------------------------ 1997 1996 1995 1994 1993 -------- -------- -------- -------- ------ (DOLLARS IN MILLIONS) Earnings before income taxes and accounting changes (less minority interests)..................................... $1,233.4 $1,107.7 $1,018.6 $ 913.1 $318.5 Add: Interest on indebtedness -- excluding amount capitalized........................................ 167.0 145.9 122.7 93.7 64.2 Amortization of debt expense......................... .4 .5 .4 .4 .5 Interest factor in rent expense(a)................... 30.7 27.5 26.9 26.2 25.4 -------- -------- -------- -------- ------ Adjusted earnings............................... $1,431.5 $1,281.6 $1,168.6 $1,033.4 $408.6 -------- -------- -------- -------- ------ -------- -------- -------- -------- ------ Fixed Charges: Interest on indebtedness............................. $ 167.0 $ 145.9 $ 122.7 $ 93.7 $ 64.2 Capitalized interest................................. 8.3 9.6 10.1 9.4 8.6 Amortization of debt expense......................... .4 .5 .4 .4 .5 Interest factor in rent expense(a)................... 30.7 27.5 26.9 26.2 25.4 -------- -------- -------- -------- ------ Total fixed charges............................. $ 206.4 $ 183.5 $ 160.1 $ 129.7 $ 98.7 -------- -------- -------- -------- ------ -------- -------- -------- -------- ------ Ratio of earnings to fixed charges........................ 6.9 7.0 7.3 8.0 4.1(b) -------- -------- -------- -------- ------ -------- -------- -------- -------- ------ - ------------ (a) Represents one third of rental expense, which the Company believes is a reasonable approximation. (b) The Company's ratio of earnings to fixed charges for 1993 would have been 9.5 excluding the restructuring charge of $525.2 million.