Synonyms: Quetiapine Fumarate Imp. B (EP) as Dihydrochloride,11-(Piperazin-1-yl)dibenzo[b,f][1,4]thiazepine Dihydrochloride, Dibenzo[b,f][1,4]thiazepine, 11-(1-piperazinyl)-, hydrochloride (1:2), Dibenzo[b,f][1,4]thiazepine, 11-(1-piperazinyl)-, dihydrochloride (9CI), 11-(1-Piperazinyl)-dibenzo[b,f][1,4]thiazepine dihydrochloride, 11-Piperazin-1-yl-dibenzo[b,f][1,4]thiazepine dihydrochloride, 11-Piperazinodibenzo[b,f][1,4]thiazepine dihydrochloride, Norquetiapine dihydrochloride, N-Des[2-(2-hydroxyethoxy)ethyl]quetiapine dihydrochloride