Synonyms: 2,6-Methano-3-benzazocin-8-ol,1,2,3,4,5,6-hexahydro-6,11-dimethyl-3-(3-methyl-2-butenyl)-, hydrochloride,(2R,6R,11R)-rel- (9CI); 2,6-Methano-3-benzazocin-8-ol,1,2,3,4,5,6-hexahydro-6,11-dimethyl-3-(3-methyl-2-butenyl)-, hydrochloride, (2a,6a,11R*)-; (?à)-Pentazocine hydrochloride; Fortralgesic Tablets; Fortralin Tablets;Pentazocine hydrochloride