U.S. Department of Health & Human Services Divider Arrow National Institutes of Health Divider Arrow NCATS

Details

Stereochemistry RACEMIC
Molecular Formula C17H17ClN2O.ClH
Molecular Weight 337.244
Optical Activity ( + / - )
Defined Stereocenters 0 / 1
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of ETIFOXINE HYDROCHLORIDE

SMILES

Cl.CCNC1=NC2=CC=C(Cl)C=C2C(C)(O1)C3=CC=CC=C3

InChI

InChIKey=SCBJXEBIMVRTJE-UHFFFAOYSA-N
InChI=1S/C17H17ClN2O.ClH/c1-3-19-16-20-15-10-9-13(18)11-14(15)17(2,21-16)12-7-5-4-6-8-12;/h4-11H,3H2,1-2H3,(H,19,20);1H

HIDE SMILES / InChI

Molecular Formula ClH
Molecular Weight 36.461
Charge 0
Count
Stereochemistry ACHIRAL
Additional Stereochemistry No
Defined Stereocenters 0 / 0
E/Z Centers 0
Optical Activity NONE

Molecular Formula C17H17ClN2O
Molecular Weight 300.783
Charge 0
Count
Stereochemistry RACEMIC
Additional Stereochemistry No
Defined Stereocenters 0 / 1
E/Z Centers 0
Optical Activity ( + / - )

Description
Curator's Comment: The description was created based on several sources, including https://www.ncbi.nlm.nih.gov/pubmed/12871647 | https://www.ncbi.nlm.nih.gov/pubmed/25545681 | https://www.ncbi.nlm.nih.gov/pubmed/24239672 | https://www.ncbi.nlm.nih.gov/pubmed/27039042

Etifoxine (etafenoxine, StresamⓇ) is a non-benzodiazepine anxiolytic with an anticonvulsant effect. It was developed in the 1960s for anxiety disorders and is currently being studied for its ability to promote peripheral nerve healing and to treat chemotherapy-induced pain. In addition to being mediated by GABA-A2 receptors like benzodiazepines, etifoxine appears to produce anxiolytic effects directly by binding to 2 or 3 subunits of the GABAA receptor complex. It also modulates GABAA receptors indirectly via stimulation of neurosteroid production after etifoxine binds to the 18 kDa translocator protein (TSPO) of the outer mitochondrial membrane in the central and peripheral nervous systems, previously known as the peripheral benzodiazepine receptor (PBR). Therefore, the effects of etifoxine are not completely reversed by the benzodiazepine antagonist flumazenil. Etifoxine is used for various emotional and bodily reactions followed by anxiety. It is contraindicated in situations such as shock, severely impaired liver or kidney function, and severe respiratory failure. The average dosage is 150 mg per day for no more than 12 weeks. The most common adverse effect is drowsiness at the initial stage. It does not usually cause any withdrawal syndromes. In conclusion, etifoxine shows less adverse effects of anterograde amnesia, sedation, impaired psychomotor performance, and withdrawal syndromes than those of benzodiazepines.

Approval Year

TargetsConditions

Conditions

ConditionModalityTargetsHighest PhaseProduct
Primary
Stresam

Approved Use

Unknown
PubMed

PubMed

TitleDatePubMed
Etifoxine: evaluation of its anticonvulsant profile in mice in comparison with sodium valproate, phenytoin and clobazam.
1985
Functional modulation of gamma-aminobutyric acid(A) receptors by etifoxine and allopregnanolone in rodents.
2001 Apr 6
A double blind parallel group placebo controlled comparison of sedative and mnesic effects of etifoxine and lorazepam in healthy subjects [corrected].
2001 Jun
Effects of etifoxine on ligand binding to GABA(A) receptors in rodents.
2002 Oct
Effects of stress and etifoxine on pentobarbital-induced loss of righting reflex in Balb/cByJ and C57BL/6J mice.
2003 Dec 19
[Etifoxine chlorhydrate-induced acute hepatitis].
2003 Nov
The modulatory effects of the anxiolytic etifoxine on GABA(A) receptors are mediated by the beta subunit.
2003 Sep
Effects of etifoxine on stress-induced hyperthermia, freezing behavior and colonic motor activation in rats.
2004 Oct 15
The anxiolytic etifoxine activates the peripheral benzodiazepine receptor and increases the neurosteroid levels in rat brain.
2005 Dec
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.
2006 Apr
Anxiolytics, hypnotics, and antidepressants dispensed to adolescents in a French region in 2002.
2006 Jul
Lack of interaction between etifoxine and CRF1 and CRF2 receptors in rodents.
2006 Sep
Neurosteroid allopregnanolone mediates anxiolytic effect of etifoxine in rats.
2007 Dec 12
[Etifoxine: a new look at the GABA receptor and anxiety].
2008 Apr
Investigation of the anticonvulsive effect of acute immobilization stress in anxious Balb/cByJ mice using GABA A-related mechanistic probes.
2008 May
[Pathomorphosis of anxiety disorder in patients with intestinal dysbiosis].
2009
Etifoxine (Stresam) for chemotherapy-induced pain?
2009 Dec 15
Reduction and prevention of vincristine-induced neuropathic pain symptoms by the non-benzodiazepine anxiolytic etifoxine are mediated by 3alpha-reduced neurosteroids.
2009 Dec 15
Preventive and curative effects of etifoxine in a rat model of brain oedema.
2009 Jul
Adjustment Disorder: epidemiology, diagnosis and treatment.
2009 Jun 26
[Lymphocytic colitis probably due to etifoxine. A case with relapse after reintroduction].
2009 Mar-Apr
The anxiolytic etifoxine protects against convulsant and anxiogenic aspects of the alcohol withdrawal syndrome in mice.
2009 May
General unknown screening procedure for the characterization of human drug metabolites in forensic toxicology: applications and constraints.
2009 Sep
Implication of 5-HT2 receptor subtypes in the mechanism of action of the GABAergic compound etifoxine in the four-plate test in Swiss mice.
2010 Apr 2
Limiting activity at beta1-subunit-containing GABAA receptor subtypes reduces ataxia.
2010 Mar
Patents

Sample Use Guides

50 mg tid
Route of Administration: Oral
PC12 cells were exposed to various concentrations of etifoxine (5, 10, 20, and 40 µM). Etifoxine increased neuronal-like outgrowth in PC12 cells in a dose-dependent manner
Substance Class Chemical
Created
by admin
on Fri Dec 15 22:07:20 GMT 2023
Edited
by admin
on Fri Dec 15 22:07:20 GMT 2023
Record UNII
NBL8010WH5
Record Status Validated (UNII)
Record Version
  • Download
Name Type Language
ETIFOXINE HYDROCHLORIDE
MART.   MI   WHO-DD  
Common Name English
ETIFOXINE HCL
Common Name English
ETIFOXINE HYDROCHLORIDE [MI]
Common Name English
Etifoxine hydrochloride [WHO-DD]
Common Name English
ETIFOXINE HYDROCHLORIDE [MART.]
Common Name English
6-CHLORO-N-ETHYL-4-METHYL-4-PHENYL-3,1-BENZOXAZIN-2-AMINE HYDROCHLORIDE
Systematic Name English
Code System Code Type Description
EPA CompTox
DTXSID50972228
Created by admin on Fri Dec 15 22:07:20 GMT 2023 , Edited by admin on Fri Dec 15 22:07:20 GMT 2023
PRIMARY
PUBCHEM
135413552
Created by admin on Fri Dec 15 22:07:20 GMT 2023 , Edited by admin on Fri Dec 15 22:07:20 GMT 2023
PRIMARY
MERCK INDEX
m5183
Created by admin on Fri Dec 15 22:07:20 GMT 2023 , Edited by admin on Fri Dec 15 22:07:20 GMT 2023
PRIMARY Merck Index
EVMPD
SUB02040MIG
Created by admin on Fri Dec 15 22:07:20 GMT 2023 , Edited by admin on Fri Dec 15 22:07:20 GMT 2023
PRIMARY
FDA UNII
NBL8010WH5
Created by admin on Fri Dec 15 22:07:20 GMT 2023 , Edited by admin on Fri Dec 15 22:07:20 GMT 2023
PRIMARY
ECHA (EC/EINECS)
260-380-0
Created by admin on Fri Dec 15 22:07:20 GMT 2023 , Edited by admin on Fri Dec 15 22:07:20 GMT 2023
PRIMARY
SMS_ID
100000085197
Created by admin on Fri Dec 15 22:07:20 GMT 2023 , Edited by admin on Fri Dec 15 22:07:20 GMT 2023
PRIMARY
CAS
56776-32-0
Created by admin on Fri Dec 15 22:07:20 GMT 2023 , Edited by admin on Fri Dec 15 22:07:20 GMT 2023
PRIMARY
RXCUI
236215
Created by admin on Fri Dec 15 22:07:20 GMT 2023 , Edited by admin on Fri Dec 15 22:07:20 GMT 2023
PRIMARY RxNorm
MESH
C002125
Created by admin on Fri Dec 15 22:07:20 GMT 2023 , Edited by admin on Fri Dec 15 22:07:20 GMT 2023
PRIMARY
DRUG BANK
DBSALT002449
Created by admin on Fri Dec 15 22:07:20 GMT 2023 , Edited by admin on Fri Dec 15 22:07:20 GMT 2023
PRIMARY
Related Record Type Details
ENANTIOMER -> RACEMATE
ENANTIOMER -> RACEMATE