[A narcotic used as a pain medication. It appears to be an agonist at kappa opioid receptors and an antagonist or partial agonist at mu opioid receptors. ( MSH )]
UMLS (NCI) C0027348 - Organic Chemical
- Pharmacologic Substance
Relation/PAR: [CN101] OPIOID ANALGESICS
morphinan
Relation/CHD: (5alpha,6alpha)-17-(Cyclobutylmethyl)-4,5-epoxymorphinan-3,6,14-triol Hydrochloride