Etifoxine
File:Etifoxine.svg | |
Systematic (IUPAC) name | |
---|---|
6-chloro-N-ethyl-4-methyl-4-phenyl- 4H-benzo[d][1,3]oxazin-2-amine | |
Clinical data | |
Pregnancy category |
|
Routes of administration | Oral |
Pharmacokinetic data | |
Bioavailability | 90% |
Metabolism | Hepatic (no CYP450 interactions)[1] |
Biological half-life | 2 to 6 hours (etifoxine), 20 to 30 hours (active metabolite)[2] |
Excretion | Renal[1] |
Identifiers | |
CAS Number | 21715-46-8 |
ATC code | N05BX03 (WHO) |
PubChem | CID 30768 |
Chemical data | |
Formula | C17H17ClN2O |
Molar mass | 300.782 g/mol[[Script error: No such module "String".]] |
Etifoxine (INN, also known as etafenoxine; trade name Stresam) is an anxiolytic and anticonvulsant drug.[3] It is used in anxiety disorders and to promote peripheral nerve healing.[4] It has similar effects to benzodiazepine drugs, but is structurally distinct and so is classed as a nonbenzodiazepine anxiolytic.[5] It is more effective than lorazepam as an anxiolytic, and has fewer side effects.[6]
Etifoxine has been associated with acute liver injury.[1]
Mechanism of action
Unlike benzodiazepines, etifoxine appears to produce its anxiolytic effects by binding to β2 and β3 subunits of the GABAA receptor complex, and so is acting at a different target site to benzodiazepines, although the physiological effect that is produced is similar to that of benzodiazepines.[7] This difference in binding means that etifoxine can be used alongside benzodiazepines to potentiate their effects without competing for binding sites,[8] however it also means that the effects of etifoxine are not reversed by the benzodiazepine antagonist flumazenil.[9]
References
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- The Merck Index, 12th Edition. 3910
- ↑ Jump up to: 1.0 1.1 1.2 Lua error in package.lua at line 80: module 'Module:Citation/CS1/Suggestions' not found.
- Jump up ↑ "Stresam PI" (PDF). Adcock Ingram. n.d. Retrieved 2008-08-30.
- Jump up ↑ Kruse HJ, Kuch H. Etifoxine: evaluation of its anticonvulsant profile in mice in comparison with sodium valproate, phenytoin and clobazam. Arzneimittelforschung. 1985;35(1):133-5.
- Jump up ↑ Etifoxine improves peripheral nerve regeneration and functional recovery
- Jump up ↑ Schlichter R, Rybalchenko V, Poisbeau P, Verleye M, Gillardin J. Modulation of GABAergic synaptic transmission by the non-benzodiazepine anxiolytic etifoxine. Neuropharmacology. 2000 Jul 10;39(9):1523-35.
- Jump up ↑ Nguyen N, Fakra E, Pradel V, Jouve E, Alquier C, Le Guern ME, Micallef J, Blin O. Efficacy of etifoxine compared to lorazepam monotherapy in the treatment of patients with adjustment disorders with anxiety: a double-blind controlled study in general practice. Human Psychopharmacology. 2006 Apr;21(3):139-49.
- Jump up ↑ Hamon A, Morel A, Hue B, Verleye M, Gillardin JM. The modulatory effects of the anxiolytic etifoxine on GABA(A) receptors are mediated by the beta subunit. Neuropharmacology. 2003 Sep;45(3):293-303.
- Jump up ↑ Kruse HJ, Kuch H. Potentiation of clobazam's anticonvulsant activity by etifoxine, a non-benzodiazepine tranquilizer, in mice. Comparison studies with sodium valproate. Arzneimittelforschung. 1986 Sep;36(9):1320-2.
- Jump up ↑ Verleye M, Schlichter R, Gillardin JM. Interactions of etifoxine with the chloride channel coupled to the GABA(A) receptor complex. Neuroreport. 1999 Oct 19;10(15):3207-10.
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- Anxiolytics
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