Method for treating anxiety with a dosage form of besylate salts of zopiclone or eszopiclone

摘要

Besylate salts of (6-(5-chloro-2-pyridyl)-5-[(4-methyl-1-piperazinyl)carbonyloxy]-7-oxo-6,7-dihydro-5H-pyrrolo[3,4-b]pyrazine) are provided.;