Levallorphan

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Levallorphan
Systematic (IUPAC) name
17-Allylmorphinan-3-ol
Identifiers
CAS number	152-02-3
ATC code	?
PubChem	5359371
Chemical data
Formula	C23H31NO7
Mol. mass	433.494 g/mol
Pharmacokinetic data
Bioavailability	?
Metabolism	?
Half life	?
Excretion	?
Therapeutic considerations
Pregnancy cat.	?
Legal status
Routes	?

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Overview

Levallorphan (INN) (Lorfan) is a drug which acts as an opioid mixed agonist-antagonist, with mainly antagonist effects. It is derived from the morphinan family of drugs.

Levallorphan used to be widely used in general anaesthesia, mainly to reverse the respiratory depression produced by the opioid analgesics and barbiturates which are used for induction of surgical anaesthesia, although it is now less common as the newer drug naloxone tends to be used instead. It was also used in combination with opioids to reduce their side effects, mainly in obstetrics, and when a very small dose of levallorphan is used alongside an opioid full agonist this can in fact produce greater analgesia than when the agonist is used by itself.^[1] The combination of levallorphan with pethidine (meperidine) was indeed used so frequently that a standardised formulation was made available, known as "Pethilorfan".^[1]

References

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Morphinans	Aknadinine • Butorphanol • Cyclorphan • Cyprodime • Dextro-3-hydroxy-N-allylmorphinan • Dextromethorphan • Dextrorphan • Dimemorfan • Drotebanol • Levargorphan • Levallorphan • Levorphanol • Levorphan • Levophenacylmorphan • Levomethorphan • Norlevorphanol • Oxilorphan • Phenomorphan • Racemethorphan • Racemorphan • Salutaridine (Sinoacutine) • Sinococuline • Sinomenine (Cocculine)
Benzomorphans	5,9-DEHB • Anazocine • Bremazocine • Cogazocine • Cyclazocine • Dezocine • Eptazocine • Etazocine • Ethylketocyclazocine • Fluorophen • Ketazocine • Metazocine • Pentazocine • Phenazocine • Quadazocine • Thiazocine
4-Phenylpiperidines	Pethidines (Meperidines) Allylnorpethidine • Anileridine • Benzethidine • Carperidine • Difenoxin • Diphenoxylate • Etoxeridine (Carbetidine) • Furethidine • Hydroxypethidine (Bemidone) • Hydroxymethoxypethidine • Morpheridine • Oxpheneridine (Carbamethidine) • Meperidine-N-Oxide • Pethidine (Meperidine) • Pethidine Intermediate A • Pethidine Intermediate B (Norpethidine) • Pethidine Intermediate C (Pethidinic Acid) • Pheneridine • Phenoperidine • Piminodine • Properidine (Ipropethidine) • Sameridine Prodines Allylprodine • α-meprodine • α-prodine • β-meprodine • β-prodine • Isopromedol • Meprodine • MPPP • PEPAP • Prodine • Prosidol • Trimeperidine (Promedol) Ketobemidones Acetoxyketobemidone • Droxypropine • Ketobemidone • Methylketobemidone • Propylketobemidone Others Alvimopan • Loperamide • Picenadol
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Anilidopiperidines	3-Allylfentanyl • 3-Methylfentanyl • 3-Methylthiofentanyl • Alfentanil • α-methylacetylfentanyl • α-methylfentanyl • α-methylthiofentanyl • Benzylfentanyl • β-hydroxyfentanyl • β-hydroxythiofentanyl • β-methylfentanyl • Brifentanil • Carfentanil • Fentanyl • Lofentanil • Mirfentanil • Ohmefentanyl • Parafluorofentanyl • Phenaridine • Remifentanil • Sufentanil • Thenylfentanyl • Thiofentanyl • Trefentanil
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Phenazepines	Ethoheptazine • Meptazinol • Metheptazine • Metethoheptazine • Proheptazine
Pirinitramides	Bezitramide • Piritramide
Benzimidazoles	Clonitazene • Etonitazene
Indoles	7-Acetoxymitragynine • 7-Hydroxymitragynine • Akuammidine • Akuammine • Eseroline • Ibogaine • Mitragynine • ψ-Akuammigine
Diphenylmethylpiperazines	BW373U86 • DPI-221 • DPI-287 • DPI-3290 • SNC-80
Opioid Peptides	Casomorphin • DADLE • DALDA • DAMGO • Dermenkephalin • Dermorphin • Deltorphin • DPDPE • Dynorphin • Endomorphin • Endorphin • Enkephalin • TRIMU 5
Others	4-(p-Bromophenyl)-4-(dimethylamino)-1-phenethylcyclohexanol • C-8813 • Ciramadol • Enadoline • Faxeladol • Herkinorin • JTC-801 • Methopholine • NNC 63-0532 • Noscapine/Narcotine • O-Desmethyltramadol • Salvinorin A • RWJ-394,674 • Tapentadol • Tifluadom • Tilidine • Tramadol • Viminol • W-18 • Zipeprol
Narcotic Antagonists	5'-Guanidinonaltrindole • β-Funaltrexamine • Binaltorphimine • Cyclazocine • Cyclohexyl-alpha-phenethylallylamine • Diprenorphine • M5050 • Levallorphan • Nalmefene • Naloxazone • Naloxonazine • Naloxone • Nalorphine • Naltrexone • Naltrindole • Norbinaltorphimine • Oxilorphan

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Acknowledgement and Attribution Regarding Sources of Content

Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .