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Systematic (IUPAC) name
CAS number 42281-59-4
ATC code  ?
PubChem 5361090
Chemical data
Formula C20H27NO2 
Mol. mass 313.44 g/mol
Synonyms Oxilorphan
Pharmacokinetic data
Bioavailability  ?
Metabolism  ?
Half life  ?
Excretion  ?
Therapeutic considerations
Pregnancy cat.


Legal status
Routes  ?

Oxilorphan is an opioid antagonist from the morphinan family of drugs.

Oxilorphan is a non-selective opioid which is a μ antagonist but a κ partial agonist. It has similar effects to naloxone, and around the same potency as an antagonist.[1]

Oxilorphan has some weak partial agonist effects[2] and can produce hallucinogenic effects at high doses, suggesting some kappa opioid agonist action.[3] It was trialled for the treatment of opiate addiction, but was not developed commercially.[4]


  1. ^ Pircio AW, Gylys JA. Oxilorphan (l-N-cyclopropylmethyl-3,14-dihydroxymorphinan): a new synthetic narcotic antagonist. Journal of Pharmacology and Experimental Therapeutics. 1975 Apr;193(1):23-34.
  2. ^ Sellers EM, Thakur R. Partial agonist properties and toxicity of oral oxilorphan. Journal of Clinical Pharmacology. 1976 Apr;16(4):183-7.
  3. ^ Leander JD. Evidence that nalorphine, butorphanol and oxilorphan are partial agonists at a kappa-opioid receptor. European Journal of Pharmacology. 1983 Jan 21;86(3-4):467-70.
  4. ^ Tennant FS Jr, Tate JA, Ruckel E. Clinical trial in post-addicts with oxilorphan (levo-BC-2605): a new narcotic antagonist. Drug and Alcohol Dependence. 1976 Jun;1(5):329-37.
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Oxilorphan". A list of authors is available in Wikipedia.
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