azelastine hydrochloride
1(2H)-Phthalazinone, 4-[(4-chlorophenyl)methyl]-2-(hexahydro-1-methyl-1H-azepin-4-yl)-, monohydrochloride, (R)-;(R)-Azelastine Hydrochloride;(R)-4-[(4-Chlorophenyl)Methyl]-2-(hexahydro-1-Methyl-1H-azepin-4-yl)-1(2H)-phthalazinone Hydrochloride