Synonyms: 12,24-Secostrychnidin-10-one,12,13-didehydro-, monohydrochloride;12H-1,12-Ethano-9H-pyrido[1,2,3-lm]pyrrolo[2,3-d]carbazol-9-one,2,3,10,11b,13,13a-hexahydro-14-(2-hydroxyethylidene)-, monohydrochloride,(1S,3aR,11bS,12S,13aS,14E)- (9CI); 12H-1,12-Ethano-9H-pyrido[1,2,3-lm]pyrrolo[2,3-d]carbazole,12,24-secostrychnidin-12-one deriv.; Isostrychnine hydrochloride