Levomethorphan: Difference between revisions



Levomethorphan
Systematic (IUPAC) name
3-methoxy-17-methylmorphinan
Identifiers
CAS number	125-68-8
ATC code	R05DA09
PubChem	5486607
DrugBank	APRD00655
Chemical data
Formula	C₁₈H₂₅N O
Mol. mass	271.397 g/mol
Pharmacokinetic data
Bioavailability	?
Metabolism	?
Half life	3-6 hours
Excretion	?
Therapeutic considerations
Pregnancy cat.	?
Legal status	Schedule II
Routes	?

Levomethorphan is a drug very rarely used. It is the l-stereoisomer of methorphan. The effects of the two isomers are quite different. Dextromethorphan is an antitussive at low doses and a dissociative at much higher doses, whereas levomethorphan is an opioid analgesic. Levomethorphan has effects similar to levorphanol but is less potent as it must be demethylated to the active form by liver enzymes before becoming active.

Analgesic products (N02A, N02B)

Opioids
See also: Opioids template

Opium & alkaloids thereof	Codeine · Morphine · Opium · Laudanum · Paregoric

Semi-synthetic opium derivatives	Acetyldihydrocodeine · Benzylmorphine · Desomorphine · Dihydrocodeine · Dihydromorphine · Ethylmorphine · Diamorphine · Hydrocodone · Hydromorphinol · Hydromorphone · Nicocodeine · Nicodicodeine · Nicomorphine · Oxycodone · Oxymorphone · Dihydrocodeinone

Synthetic opioids	Alphaprodine · Anileridine · Buprenorphine · Butorphanol · Dextromoramide · Dextropropoxyphene · Dezocine · Fentanyl · Ketobemidone · Levorphanol · Methadone · Meptazinol · Nalbuphine · Pentazocine · Propoxyphene · Propiram · Pethidine · Phenazocine · Piminodine · Piritramide · Tapentadol · Tilidine · Tramadol ·

Pyrazolones

Ampyrone/Aminophenazone · Metamizole · Phenazone

Cannabinoids

Ajulemic acid · AM404 · Cannabidiol · Cannabis · Nabilone · Tetrahydrocannabinol

Anilides

Paracetamol (acetaminophen) · Phenacetin · Propacetamol

Non-steroidal
anti-inflammatories
See also: NSAIDs template

Propionic acid class	Fenoprofen · Flurbiprofen · Ibuprofen · Ketoprofen · Naproxen · Oxaprozin

Oxicam class	Meloxicam · Piroxicam

Acetic acid class	Diclofenac · Indometacin · Ketorolac · Nabumetone · Sulindac · Tolmetin

COX-2 inhibitors	Celecoxib · Rofecoxib · Valdecoxib · Parecoxib · Lumiracoxib

Anthranilic acid (fenamate) class	Meclofenamate · Mefenamic acid

Salicylates	Aspirin (Acetylsalicylic acid) · Benorylate · Diflunisal · Ethenzamide · Magnesium salicylate · Salicin · Salicylamide · Salsalate · Trisalate · Wintergreen (Methyl salicylate)

Atypical, adjunct and potentiators,
miscellaneous

Bicifadine · Camphor · Clonidine · Cyclobenzaprine · Duloxetine · Flupirtine · Gabapentin · Glafenine · Menthol · Nefopam · Orphenadrine · Scopolamine · Tebanicline · Trazodone · Ziconotide

Opioids (N02A)

Opium
derivatives

Whole Opium
Preparations

Diascordium • B & O Supprettes • Dover's powder • Laudanum • Mithridate • Opium • Paregoric • Concentrate of Poppy Straw (CPS) • Poppy tea • Smoking Opium • Theriac

Natural Opiates

Opium Alkaloids see also: Components of Opium	Codeine • Morphine • Oripavine • Pseudomorphine • Thebaine

Alkaloid Salts Mixtures	Pantopon • Papaveretum (Omnopon) • Tetrapon

Semisynthetics

Morphine Family	14-Hydroxymorphine • 14β-Hydroxymorphine • 14β-Hydroxymorphone • 2,4-Dinitrophenylmorphine • 6-Methyldihydromorphine • 6-Methylenedihydrodesoxymorphine • 6-Acetyldihydromorphine/6-Monoacetyldihydromorphine • Acetyldihydromorphine • Azidomorphine • Chlornaltrexamine • Chloromorphide • Dihydrodesoxymorphine (Desomorphine) • Dihydromorphine • Ethyldihydromorphine • Hydromorphinol • Methyldesorphine • N-Phenethylnormorphine • Pseudomorphine

3,6 Diesters of Morphine	Diacetyldihydromorphine (Dihydroheroin) • Dibenzoylmorphine • Dibutanoylmorphine • Dipropanoylmorphine • Disalicyloylmorphine • Heroin (Diacetylmorphine) Heroin-7,8-Oxide • • Nicomorphine •

Codeine-Dionine Family	14-Hydroxydihydrocodeine • Acetylcodeine • Benzylmorphine • Codeine methylbromide • Desocodeine • Methyldihydromorphine (Dihydroheterocodeine) • Ethylmorphine (Dionine) • Heterocodeine • Isocodeine • Morpholinylethylmorphine (Pholcodine) • Myrophine • Nalodeine • Transisocodeine

Morphinones	14-Ethoxymetopon • 14-Methoxymetopon • 14β-Hydroxymorphone • 14-O-Methyloxymorphone • 14-phenylpropoxy-5-methyl-hydromorphone • 14-Phenylpropoxymetopon • 7-Spiroindanyloxymorphone • 8,14-Dihydroxydihydromorphinone • Acetylmorphone • Ethyldihydromorphinone • Hydromorphinone • Hydromorphone • Hydroxycodeine • Methyldihydromorphinone • Metopon • Morphinol • Morphinone • N-Phenethyl-14-ethoxymetopon • Oxymorphol • Oxymorphone • Pentamorphone • Semorphone

Codeinones	1-carboxy-14-hydroxydihydrocodeinone • 1-carbethoxy-14-hydroxydihydrocodeinone • Acetyldihydrocodeinone (Dihydrocodeinone enol acetate) • Codeinone • Codorphone • Codoxime • Hydrocodone • Monodihydrocodeineone • Oxycodone • Thebacon

Dihydrocodeine Series	14-hydroxydihydrocodeine • Acetyldihydrocodeine • Dihydrocodeine • Dihydrodesoxycodeine/Desocodeine • Dihydroisocodeine • Nicocodeine • Nicodicodeine

Nitrogen Morphine Derivatives	Codeine-N-Oxide • Heroin-N-Oxide • Hydromorphone-N-Oxide • Morphine-N-Oxide

Hydrazones	Hydromorphazone • Morphazone • Oxymorphazone

Others	α-chlorocodide • Pholcodine

Active Opiate
Metabolites

Codeine-N-Oxide (Genocodeine) • Hydromorphone-N-Oxide • Heroin-7,8-Oxide • Morphine-3-glucuronide • Morphine-6-glucuronide • Monoacetylmorphine • Morphine-N-Oxide (Genomorphine) • Naltrexol • Norcodeine • Normorphine

Morphinans

Morphinan Series	4-chlorophenylpyridomorphinan • Cyclorphan • Dextro-3-hydroxy-N-allylmorphinan • Dimemorfan • Levargorphan • Levallorphan • Levorphanol • Levorphan • Levophenacylmorphan • Levomethorphan • Norlevorphanol • N-Methylmorphinan • Oxilorphan • Phenomorphan • Methorphan / Racemethorphan • Racemorphan • Ro4-1539 • Stephodeline • Xorphanol

Others	1-Nitroaknadinine • 14-episinomenine • 5,6-Dihydronorsalutaridine • 6-Ketonalbuphine • Aknadinine • Butorphanol • Cephakicine • Cephasamine • Cyprodime • Drotebanol • Fenfangjine G • Nalbuphine • Sinococuline • Sinomenine (Cocculine) • Tannagine

Benzomorphans

5,9-DEHB • Allylnormetazocine • Anazocine • Bremazocine • Cogazocine • Cyclazocine • Dezocine • Eptazocine • Etazocine • Ethylketocyclazocine • Fluorophen • Ketazocine • Metazocine • Pentazocine • Phenazocine • Quadazocine • Thiazocine • Tonazocine • Volazocine • Zenazocine

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 • Isopromedol • Meprodine (α-meprodine / β-meprodine) • MPPP (Desmethylprodine) • PEPAP • Prodine (α-prodine / β-prodine) • Prosidol • Trimeperidine (Promedol)

Ketobemidones	Acetoxyketobemidone • Droxypropine • Ketobemidone • Methylketobemidone • Propylketobemidone

Others	Alvimopan • Loperamide • Picenadol

Open Chain
Opioids

Amidones	Dextromethadone • Dextroisomethadone • Dipipanone • Hexalgon (Norpipanone) • Isomethadone • Levoisomethadone • Levomethadone • Methadone • Methadone intermediate • Normethadone • Norpipanone • Phenadoxone (Heptazone) • Pipidone

Methadols	Dimepheptanol (Racemethadol) • Levacetylmethadol • Levomethadyl acetate (Acetylmethadol) • Noracetylmethadol

Moramides	Dextromoramide • Levomoramide • Moramide intermediate • Racemoramide

Thiambutenes	Diethylthiambutene • Dimethylthiambutene • Ethylmethylthiambutene • Piperidylthiambutene • Pyrrolidinylthiambutene • Thiambutene • Tipepidine

Phenalkoxams	Dextropropoxyphene (Propoxyphene) • Dimenoxadol • Dioxaphetyl Butyrate • Levopropoxyphene • Norpropoxyphene

Ampromides	Diampromide • Phenampromide • Propiram

Others	IC-26 • Isoaminile • Lefetamine • R-4066

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 • Ocfentanil • Ohmefentanyl • Parafluorofentanyl • Phenaridine • Remifentanil • Sufentanil • Thenylfentanyl • Thiofentanyl • Trefentanil

Oripavine
derivatives

7-PET • Acetorphine • Alletorphine • BU-48 • Buprenorphine • Butorphine • Cyprenorphine • Dihydroetorphine • Diprenorphine (M5050) • Etorphine • 18,19-Dehydrobuprenorphine (HS-599) • N-cyclopropylmethyl-noretorphine • Nepenthone • Norbuprenorphine • Thevinone • Thienorphine

Phenazepines

Ethoheptazine • Meptazinol • Metheptazine • Metethoheptazine • Proheptazine

Pirinitramides

Bezitramide • Piritramide

Benzimidazoles

Clonitazene • Etonitazene • Nitazene

Indoles

18-MC • 7-Acetoxymitragynine • 7-Hydroxymitragynine • Akuammidine • Akuammine • Eseroline • Hodgkinsine • Ibogaine • Mitragynine • Noribogaine • Pericine • ψ-Akuammigine

Diphenylmethylpiperazines

BW373U86 • DPI-221 • DPI-287 • DPI-3290 • SNC-80

Opioid peptides
see also: The Opioid Peptides

Casomorphin • DADLE • DALDA • DAMGO • Dermenkephalin • Dermorphin • Deltorphin • DPDPE • Dynorphin • Endomorphin • Endorphin • Enkephalin • Gliadorphin • Morphiceptin • Nociceptin • Octreotide • Opiorphin • Rubiscolin • TRIMU 5

Others

Azaprocin • BDPC • Befiradol • Bisnortilidine • BRL-52537 • C-8813 • Ciramadol • Enadoline • Faxeladol • Herkinorin • J-113,397 • JTC-801 • Methopholine • NNC 63-0532 • Nortilidine • O-Desmethyltramadol • Prodilidine • Phenadone • Ro64-6198 • Salvinorin A • SB-612,111 • SC-17599 • RWJ-394,674 • TAN-67 • Tapentadol • Tecodine • Tifluadom • Tilidine • Tramadol • Viminol • W-18 • Zipeprol

Opioid Antagonists
&
Inverse-Agonists

5'-Guanidinonaltrindole • β-Funaltrexamine • 6β-Naltrexol • Alvimopan • Amiphenazole • Binaltorphimine • Chlornaltrexamine • Clocinnamox • Cyclazocine • Cyprodime • Diprenorphine (M5050) • Fedotozine • JDTic • Levallorphan • Methocinnamox • Methylnaltrexone • Nalfurafine • Nalmefene • Nalmexone • Naloxazone • Naloxonazine • Naloxone • Naloxone benzoylhydrazone • Nalorphine • Naltrexone • Naltriben • Naltrindole • Norbinaltorphimine • Oxilorphan • S-allyl-3-hydroxy-17-thioniamorphinan (SAHTM)

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