Synonyms: 4-Piperidinecarboxylicacid,1-[2-(10,11-dihydro-5H-dibenzo[a,d]cyclohepten-5-ylidene)ethyl]-4-phenyl-,ethyl ester, hydrochloride (9CI); Isonipecotic acid,1-[2-(10,11-dihydro-5H-dibenzo[a,d]cyclohepten-5-ylidene)ethyl]-4-phenyl-,ethyl ester, hydrochloride (8CI)