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Details

Stereochemistry RACEMIC
Molecular Formula C10H13NO2
Molecular Weight 179.2157
Optical Activity ( + / - )
Defined Stereocenters 0 / 1
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of PHENIBUT

SMILES

NCC(CC(O)=O)C1=CC=CC=C1

InChI

InChIKey=DAFOCGYVTAOKAJ-UHFFFAOYSA-N
InChI=1S/C10H13NO2/c11-7-9(6-10(12)13)8-4-2-1-3-5-8/h1-5,9H,6-7,11H2,(H,12,13)

HIDE SMILES / InChI

Molecular Formula C10H13NO2
Molecular Weight 179.2157
Charge 0
Count
Stereochemistry RACEMIC
Additional Stereochemistry No
Defined Stereocenters 0 / 1
E/Z Centers 0
Optical Activity ( + / - )

Phenibut (beta-phenyl-gamma-aminobutyric acid or 4-amino-3-phenylbutyric acid) is a neuropsychotropic drug that was discovered and introduced into clinical practice in Russia in the 1960s. It has anxiolytic and nootropic (cognition enhancing) effects. It acts as a GABA-mimetic, primarily at GABA(B) receptors. Pharmacological activity of racemic phenibut relies on R-phenibut and this correlates to the binding affinity of enantiomers of phenibut to the GABAB receptor. In addition R-phenibut binds to the α2-δ subunit of voltage-dependent calcium channels. It is highly effective in treating anxiety, post-traumatic stress disorder, depression, asthenia, insomnia, alcoholism, stuttering, and vestibular disorders. It also improves mental performance (attention, memory, speed and accuracy of sensory-motor reactions), physical performance, reduces sleep disorders as well as movement and speech disorders.

Originator

Sources: Khaunma RA. Tranquillizing effects of beta-phenyl-gamma-aminobutyric acid (“Phenigama”). Byull Eksp Biol Med 1964;1:54–58
Curator's Comment: Phenibut (beta-phenyl-gamma-aminobutyric acid, beta-phenyl-GABA) was synthesized by Perekalin and his associates at the Department of Organic Chemistry of the Herzen Pe-dagogic Institute in St. Petersburg, Russia. https://www.ncbi.nlm.nih.gov/pubmed/11830761

Approval Year

TargetsConditions

Conditions

ConditionModalityTargetsHighest PhaseProduct
Primary
PHENIBUT

Approved Use

Asthenic and Anxious-Neurotic States, Worry, Anxiety, Fear Sleep Disorders Tiredness Improve Memory, Cognition, Mood
Primary
PHENIBUT

Approved Use

Asthenic and Anxious-Neurotic States, Worry, Anxiety, Fear Sleep Disorders Tiredness Improve Memory, Cognition, Mood
Primary
PHENIBUT

Approved Use

Asthenic and Anxious-Neurotic States, Worry, Anxiety, Fear Sleep Disorders Tiredness Improve Memory, Cognition, Mood
PubMed

PubMed

TitleDatePubMed
[Antiabstinent action of fenibut and baclofen on a model of abstinence induced by the benzodiazepine receptor antagonist CGS 8216 in rats receiving diazepam].
1987 Jun
[Experimental study of the antiepileptic activity of fenibut and its combinations with sodium valproate and aminooxyacetic acid].
1988 May-Jun
[Neurochemical characteristics of the ventromedial hypothalamus and anti-aversive effects of anxiolytic agents in various anxiety models].
2001 Sep
Phenibut (beta-phenyl-GABA): a tranquilizer and nootropic drug.
2001 Winter
[Anti-arrhythmic properties of GABA and GABA-ergic system activators].
2002 Jan-Feb
[Cardiac effects of fenibut in development of experimental chronic renal insufficiency].
2003 Jul-Aug
Neurochemical characteristics of the ventromedial hypothalamus in mediating the antiaversive effects of anxiolytics in different models of anxiety.
2003 Mar
[Peculiarities of nootropic effect of phenibut].
2006
[Effect of phenibut on the respiratory arrest caused by serotonin].
2006 Jan-Feb
[Neurochemical features of the ventral pallidum in realization of the antiaversive effects of anxiolytics in different models of anxiety].
2006 Jan-Feb
[The effect of GABA derivative phenibut on defensive conditioning and internal inhibition].
2006 Mar-Apr
[Comparative evaluation of the neuroprotective activity of phenibut and piracetam under experimental cerebral ischemia conditions in rats].
2006 May-Jun
Neurochemical mechanisms of the dorsal pallidum in the antiaversive effects of anxiolytics in various models of anxiety.
2006 Sep
[Correction of cardiotoxic effect of chronic alcoholic intoxication by GABA-ergic compounds].
2007
Quantitative analysis of phenibut in rat brain tissue extracts by liquid chromatography-tandem mass spectrometry.
2008 Dec
Comparative pharmacological activity of optical isomers of phenibut.
2008 Mar 31
[Effects of aminalon, fenibut, and picamilon on the typological parameters of cerebral hemodynamics in swimmers with dysadaptation syndrome].
2009 Jul-Aug
Comparative study of immunocorrective activity of phenibut and its organic salts in experimental immunodeficiency.
2009 May
[Efficiency of noophen in heroin addiction].
2009 Oct-Dec
[Effects of phenibut on parameters of cerebral hemodynamics in swimmers with dysadaptation syndrome and various types of systemic hemodynamics].
2010 Aug
[Interhemisphere asymmetry of hippocampus and neocortex in correlates of active and passive behavioural strategy in negative emotional situations].
2010 Dec
[Comparative study of immunomodulating properties of phenibut and gammoxin].
2010 Dec
[Changes in the psycho-emotional state under conditions of suppressed immunogenesis, the correction of the disorders with GABA-positive means].
2010 Feb
Paired-pulse inhibition in the auditory cortex in Parkinson's disease and its dependence on clinical characteristics of the patients.
2010 Nov 1
Patents

Patents

Sample Use Guides

Initial dose is 250-500 mg (1-2 pills) 3 times a day. Maximum single dose: 750 mg, for patients over 60 years: 500 mg. The course of treatment is 2-3 weeks. If necessary, the course of treatment can be prolonged to 4-6 weeks. Patients, who have somnolence or other central nervous system disturbances during administration of Phenibut, should be careful about driving.
Route of Administration: Oral
In Vitro Use Guide
It has been established in experiments on the isolated spinal cord of 7-14-day-old rats that the GABAB-mimetic phenibut (10-100 uM) elicits a slow-developing depolarization of motoneurons, suppression of spontaneous activity and polysynaptic reflex discharges of motoneurons, recorded from the ventral roots.
Substance Class Chemical
Created
by admin
on Sat Dec 16 07:49:07 GMT 2023
Edited
by admin
on Sat Dec 16 07:49:07 GMT 2023
Record UNII
T2M58D6LA8
Record Status Validated (UNII)
Record Version
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Name Type Language
PHENIBUT
WHO-DD  
Common Name English
.BETA.-PHENYL-.GAMMA.-AMINOBUTYRIC ACID
Systematic Name English
PHENIGAMMA
Brand Name English
(±)-FENIBUT
Common Name English
DL-4-AMINO-3-PHENYLBUTANOIC ACID
Common Name English
(±)-.BETA.-PHENYL-GABA
Common Name English
PHGABA
Common Name English
PHENYGAM
Brand Name English
4-AMINO-3-PHENYLBUTYRIC ACID
MI  
Systematic Name English
Phenibut [WHO-DD]
Common Name English
FENIBUT
Brand Name English
.BETA.-(AMINOMETHYL)HYDROCINNAMIC ACID
Systematic Name English
4-AMINO-3-PHENYLBUTYRIC ACID [MI]
Common Name English
4-AMINO-3-PHENYLBUTANOIC ACID
Systematic Name English
.BETA.-(AMINOMETHYL)BENZENEPROPANOIC ACID
Systematic Name English
Classification Tree Code System Code
WHO-ATC N06BX22
Created by admin on Sat Dec 16 07:49:07 GMT 2023 , Edited by admin on Sat Dec 16 07:49:07 GMT 2023
DSLD 2945 (Number of products:14)
Created by admin on Sat Dec 16 07:49:07 GMT 2023 , Edited by admin on Sat Dec 16 07:49:07 GMT 2023
WHO-VATC QN06BX22
Created by admin on Sat Dec 16 07:49:07 GMT 2023 , Edited by admin on Sat Dec 16 07:49:07 GMT 2023
WIKIPEDIA Designer-drugs-Phenibut
Created by admin on Sat Dec 16 07:49:07 GMT 2023 , Edited by admin on Sat Dec 16 07:49:07 GMT 2023
Code System Code Type Description
PUBCHEM
14113
Created by admin on Sat Dec 16 07:49:07 GMT 2023 , Edited by admin on Sat Dec 16 07:49:07 GMT 2023
PRIMARY
FDA UNII
T2M58D6LA8
Created by admin on Sat Dec 16 07:49:07 GMT 2023 , Edited by admin on Sat Dec 16 07:49:07 GMT 2023
PRIMARY
CAS
1078-21-3
Created by admin on Sat Dec 16 07:49:07 GMT 2023 , Edited by admin on Sat Dec 16 07:49:07 GMT 2023
PRIMARY
DRUG BANK
DB13455
Created by admin on Sat Dec 16 07:49:07 GMT 2023 , Edited by admin on Sat Dec 16 07:49:07 GMT 2023
PRIMARY
ECHA (EC/EINECS)
214-079-6
Created by admin on Sat Dec 16 07:49:07 GMT 2023 , Edited by admin on Sat Dec 16 07:49:07 GMT 2023
PRIMARY
ChEMBL
CHEMBL315818
Created by admin on Sat Dec 16 07:49:07 GMT 2023 , Edited by admin on Sat Dec 16 07:49:07 GMT 2023
PRIMARY
EPA CompTox
DTXSID70870838
Created by admin on Sat Dec 16 07:49:07 GMT 2023 , Edited by admin on Sat Dec 16 07:49:07 GMT 2023
PRIMARY
WIKIPEDIA
PHENIBUT
Created by admin on Sat Dec 16 07:49:07 GMT 2023 , Edited by admin on Sat Dec 16 07:49:07 GMT 2023
PRIMARY
MERCK INDEX
m1730
Created by admin on Sat Dec 16 07:49:07 GMT 2023 , Edited by admin on Sat Dec 16 07:49:07 GMT 2023
PRIMARY Merck Index
DRUG CENTRAL
4863
Created by admin on Sat Dec 16 07:49:07 GMT 2023 , Edited by admin on Sat Dec 16 07:49:07 GMT 2023
PRIMARY
MESH
C008842
Created by admin on Sat Dec 16 07:49:07 GMT 2023 , Edited by admin on Sat Dec 16 07:49:07 GMT 2023
PRIMARY
INN
11885
Created by admin on Sat Dec 16 07:49:07 GMT 2023 , Edited by admin on Sat Dec 16 07:49:07 GMT 2023
PRIMARY
SMS_ID
100000128219
Created by admin on Sat Dec 16 07:49:07 GMT 2023 , Edited by admin on Sat Dec 16 07:49:07 GMT 2023
PRIMARY
EVMPD
SUB35018
Created by admin on Sat Dec 16 07:49:07 GMT 2023 , Edited by admin on Sat Dec 16 07:49:07 GMT 2023
PRIMARY
Related Record Type Details
TARGET -> AGONIST
SALT/SOLVATE -> PARENT