Exhibit 11 BONE CARE INTERNATIONAL, INC., AND SUBSIDIARY Statement Regarding Computation of Loss Per Share (Unaudited) Three months ended Six Months ended December 31, December 31, December 31, December 31, 1997 1996 1997 1996 ----------- ------------ ------------ ------------ Net loss $ (1,109,118) $ (776,358) $ (2,117,596) $ (1,072,360) ============ =========== ============ ============ Weighted average number of common shares 8,722,430 8,707,382 8,722,406 8,707,382 ============ =========== ============ ============ Net loss per common share - basic $ (0.13) $ (0.09) $ (0.24) $ (0.12) ============ =========== ============ ============