Synonyms: 1H-Inden-1-one, 2,3-dihydro-5,6-dimethoxy-2-[[1-(phenylmethyl)-4-piperidinyl]methyl]-, hydrochloride (9CI), Aricept, Aricept D, BNAG, E 2020,Donepezil hydrochloride, 1H-Inden-1-one, 2,3-dihydro-5,6-dimethoxy-2-[[1-(phenylmethyl)-4-piperidinyl]methyl]-, hydrochloride (1:1), 1-Benzyl-4-[(5,6-dimethoxy-1-indanon-2-yl)methyl]piperidine hydrochloride, Aricept ODT, Donep, Dopezil, Dorent, E 2020 (pharmaceutical)