Dextrorphan

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Dextrorphan (DXO) is a pharmacologically active metabolite of dextromethorphan (DXM).



Dextrorphan
Systematic (IUPAC) name
17-methyl-9a,13a,14a-morphinan-3-ol
Identifiers
CAS number	125-73-5
ATC code	?
PubChem	5360697
Chemical data
Formula	C₁₇H₂₃N O
Mol. mass	257.371 g/mol
Pharmacokinetic data
Bioavailability	?
Metabolism	?
Half life	?
Excretion	?
Therapeutic considerations
Pregnancy cat.	?
Legal status	Schedule I(US)
Routes	?

1 Chemistry
2 Pharmacology
3 See also
4 External links

[edit] Chemistry

It is the result of O-demethylation of the prodrug by several enzymatic systems, although it is chiefly a product of the Cytochrome P450 IID6 (CYP2D6) pathway.

[edit] Pharmacology

Dextrorphan is structurally similar to dextromethorphan, and has an affinity for the same receptors in the central nervous system, although with a slight difference in selectivity. While dextromethorphan is a weak non-competitive NMDA receptor antagonist, dextrorphan is a more potent antagonist[1].

It should be noted, however, that due to its potency as an NMDA receptor antagonist, as well as the fact that it is produced as a by-product of DXM metabolization in the body, DXO is thought to be largely responsible for the psychological side-effects that occur at high doses of DXM. These side-effects can include alteration of consciousness, or "cognitive dissociation", which are characteristic of NMDA blockade and which have afforded DXM its potential for use as a recreational drug.

[edit] See also

Levorphanol
Dextromethorphan
Ketamine (compound that acts most similarly to dextrorphan)
Hallucinogen
Psychedelic
Racemethorphan
Morphinans

[edit] External links

Dextrorphan Legality

v • d • e

Opioids (N02A)

Opiate
derivatives

Whole Opium Preparations	Dover's Powder • Granulated Opium • Laudanum • Mithridate • Opium • Paregoric • Poppy Straw Concentrate • Poppy tea • Powdered Opium • Raw Opium • Smoking Opium

Natural Opiates	Codeine • Morphine • Narceine • Noscapine • Omnopon • Oripavine • Pantopon • Papaveretum • Pseudomorphine • Tetrapon • Thebaine

Semisynthetics	2,4-Dinitrophenylmorphine • 14-Hydroxyazidomorphine • 14-Ethoxymetopon • 14-Methoxymetopon • 14-Phenylpropoxymetopon • 6-Ketonalbuphine • 6-Methyldihydromorphine • 6-Methylenedihydrodesoxymorphine • 6-Methylene-14-hydroxydihydrodesoxymorphine • 8,14-Dihydroxydihydromorphinone • Acetylcodeine • Acetyldihydrocodeine • Acetylmorphone • Azidocodeine • Azidomorphine • Benzylmorphine • Chloromorphide • Clocinnamox • Codeine • Codeinone • Codorphone • Codoxime • Desocodeine • Desomorphine • Diacetyldihydromorphine • Dihydrocodeine • Dihydrocodeinone enol acetate • Dihydrohydroxycodeinone • Dihydrodesoxymorphine • Dihydroheroin • Dihydroheterocodeine • Dihydroisocodeine • Dihydromorphine • Dibutanoylmorphine • Dipropanoylmorphine • Ethyldihydromorphinone • Ethyldihydromorphine • Ethylmorphine • Heroin (Diamorphine) • Heroin-7,8-Oxide • Heterocodeine • Hydrocodone • Hydromorphinol • Hydromorphone • Isocodeine • Methyldesorphine • Methyldihydromorphine • Methylnaltrexone • Metopon • Morphinone • Myrophine • N-Phenethyl-14-ethoxymetopon • Nalfurafine • Nalmefene • Nalodeine • Nalorphine • Naloxone • Naltrexone • Naltrindole • Nicocodeine • Nicodicodeine • Nicomorphine • Oxycodone • Oxymorphone • Pholcodine • Semorphone • Thebacon

Opiate metabolites	Codeine-N-Oxide • Morphine-3-glucuronide • Morphine-6-glucuronide • Monoacetylmorphine • Morphine-N-Oxide • Naltrexol • Norcodeine • Normorphine

Morphinans

Aknadinine • Butorphanol • Cyclorphan • Cyprodime • Dextro-3-hydroxy-N-allylmorphinan • Dextromethorphan • Dextrorphan • Dimemorfan • Drotebanol • Levargorphan • Levallorphan • Levorphanol • Levorphan • Levophenacylmorphan • Levomethorphan • Nalbuphine • 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

Open Chain
Opioids

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

Methadols	Acetylmethadol • α-methadol • α-acetylmethadol • β-methadol • β-acetylmethadol • Dimepheptanol (Racemethadol) • Levo-α-acetylmethadol • Noracymethadol

Moramides	Dextromoramide • Levomoramide • Moramide intermediate • Racemoramide

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

Phenalkoxams	Dextropropoxyphene • Dimenoxadol • Dioxaphetyl Butyrate • Levopropoxyphene • Propoxyphene

Ampromides	Diampromide • Phenampromide • Propiram

Others	IC-26 • Lefetamine • R-4066