Method for treating a sleep disorder with a dosage form of a zopiclone or eszopiclone L-malate salt

摘要

L-malate 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.;