1 ALLERGAN, INC. EXHIBIT 11 COMPUTATION OF EARNINGS PER SHARE Earnings per share of common stock, including common stock equivalents, have been computed based on the following weighted average number of shares and net earnings: For the year ended December 31, ------------------------------------------ (000's, except per share amounts) 1994 1993 1992 -------- -------- -------- Weighted average number of common shares outstanding during the period 63,499 65,953 67,310 Weighted average number of additional shares issuable in connection with dilutive stock options based upon use of the treasury stock method and average market prices 443 204 365 -------- -------- -------- Weighted average number of common shares including common stock equivalents 63,942 66,157 67,675 ======== ======== ======== Net earnings for the year $110,685 $108,877 $103,583 ======== ======== ======== Primary earnings per common share $1.73 $1.65 $1.53 ===== ===== ===== In 1994, 1993 and 1992, the difference between shares for primary and fully diluted earnings per share was not significant.