Patent ID: 7977350

Claim:
A pharmaceutical composition comprising (S)-5-{3-[4-(4-Chloro-phenyl)-4-hydroxy-3,3-dimethyl-piperidin-1-yl]-propylidene}-5,11-dihydro-10-oxa-1-aza- dibenzo[a,d]cycloheptene-7-carboxylic acid or physiologically acceptable salt thereof, (R)-5-{3-[4-(4-Chloro-phenyl)-4-hydroxy-3,3-dimethyl-piperidin-1-yl]-propylidene}-5,11-dihydro-10-oxa-1-aza-dibenzo[a,d]cycloheptene-7-carboxylic acid or physiologically acceptable salt thereof, and a physiologically acceptable carrier or excipient, wherein the ratio of (S)-enantiomer to (R)-enantiomer is at least about 2:1.