Term Name:	butorphanol
Synonyms:	(-)-17-(cyclobutylmethyl)morphinan-3,14-diol, (-)-butorphanol, (-)-N-cyclobutylmethyl-3,14-dihydroxymorphinan, 17-(cyclobutylmethyl)morphinan-3,14-diol, butorfanol, BUTORPHANOL, butorphanolum
Definition:	Levorphanol in which a hydrogen at position 14 of the morphinan skeleton is substituted by hydroxy and one of the hydrogens of the N-methyl group is substituted by cyclopropyl. A semi-synthetic opioid agonist-antagonist analgesic, it is used as its (S,S)-tartaric acid salt for relief or moderate to severe pain.
Ontology:	ChEBI [CHEBI:3242]  ( EBI )