Synonyms: | Morphinan-6-one,17-(cyclobutylmethyl)-4,5-epoxy-3,14-dihydroxy-, hydrochloride, (5a)- (9CI); Morphinan-6-one,17-(cyclobutylmethyl)-4,5a-epoxy-3,14-dihydroxy-, hydrochloride (8CI); EN 1655A;N-Cyclobutylmethylnoroxymorphone hydrochloride; Nalbuphone hydrochloride |