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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
[Monoamine, GABA, and glutamergic mechanisms of the anterior hypothalamus in anti-aversive effects of sedative and selective drugs in various models of anxiety].
2001 Mar-Apr
[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
[Neurochemical mechanisms of dorsal pallidum in antiadverse effects of anxiolytics of different models of anxiety].
2005 Jul
[Effect of phenibut on the behavior of experimental animals under conditions of voluntary chronic alcoholism].
2005 May-Jun
[Peculiarities of nootropic effect of phenibut].
2006
[Neurochemical features of the ventral pallidum in realization of the antiaversive effects of anxiolytics in different models of anxiety].
2006 Jan-Feb
[Cardioprotective effect of GABA derivatives in acute alcohol intoxication].
2006 Jul-Aug
[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
[Effect of GABA receptor agonist phenibut on behavior and respiration of rabbits in the negative emotional situation].
2007 Jul-Aug
Effects of the GABA receptor agonist phenibut on behavior and respiration in rabbits in emotionally negative situations.
2008 Jul
[Effect of phenibut on the content of monoamines, their metabolites, and neurotransmitter amino acids in rat brain structures].
2009 Jan-Feb
[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
The influence of agonists of GABA(A) and GABA(B) receptors on the formation of the defensive and inhibitory conditioned reflexes.
2009 Nov-Dec
[Efficiency of noophen in heroin addiction].
2009 Oct-Dec
[Influence of GABA agonist phenibut on the neuronal activity and interaction in hippocampus and neocortex in emotionally negative situations].
2009 Sep
[Comparative study of immunomodulating properties of phenibut and gammoxin].
2010 Dec
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 UTC 2023
Edited
by admin
on Sat Dec 16 07:49:07 UTC 2023
Record UNII
T2M58D6LA8
Record Status Validated (UNII)
Record Version
  • Download
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 UTC 2023 , Edited by admin on Sat Dec 16 07:49:07 UTC 2023
DSLD 2945 (Number of products:14)
Created by admin on Sat Dec 16 07:49:07 UTC 2023 , Edited by admin on Sat Dec 16 07:49:07 UTC 2023
WHO-VATC QN06BX22
Created by admin on Sat Dec 16 07:49:07 UTC 2023 , Edited by admin on Sat Dec 16 07:49:07 UTC 2023
WIKIPEDIA Designer-drugs-Phenibut
Created by admin on Sat Dec 16 07:49:07 UTC 2023 , Edited by admin on Sat Dec 16 07:49:07 UTC 2023
Code System Code Type Description
PUBCHEM
14113
Created by admin on Sat Dec 16 07:49:07 UTC 2023 , Edited by admin on Sat Dec 16 07:49:07 UTC 2023
PRIMARY
FDA UNII
T2M58D6LA8
Created by admin on Sat Dec 16 07:49:07 UTC 2023 , Edited by admin on Sat Dec 16 07:49:07 UTC 2023
PRIMARY
CAS
1078-21-3
Created by admin on Sat Dec 16 07:49:07 UTC 2023 , Edited by admin on Sat Dec 16 07:49:07 UTC 2023
PRIMARY
DRUG BANK
DB13455
Created by admin on Sat Dec 16 07:49:07 UTC 2023 , Edited by admin on Sat Dec 16 07:49:07 UTC 2023
PRIMARY
ECHA (EC/EINECS)
214-079-6
Created by admin on Sat Dec 16 07:49:07 UTC 2023 , Edited by admin on Sat Dec 16 07:49:07 UTC 2023
PRIMARY
ChEMBL
CHEMBL315818
Created by admin on Sat Dec 16 07:49:07 UTC 2023 , Edited by admin on Sat Dec 16 07:49:07 UTC 2023
PRIMARY
EPA CompTox
DTXSID70870838
Created by admin on Sat Dec 16 07:49:07 UTC 2023 , Edited by admin on Sat Dec 16 07:49:07 UTC 2023
PRIMARY
WIKIPEDIA
PHENIBUT
Created by admin on Sat Dec 16 07:49:07 UTC 2023 , Edited by admin on Sat Dec 16 07:49:07 UTC 2023
PRIMARY
MERCK INDEX
m1730
Created by admin on Sat Dec 16 07:49:07 UTC 2023 , Edited by admin on Sat Dec 16 07:49:07 UTC 2023
PRIMARY Merck Index
DRUG CENTRAL
4863
Created by admin on Sat Dec 16 07:49:07 UTC 2023 , Edited by admin on Sat Dec 16 07:49:07 UTC 2023
PRIMARY
MESH
C008842
Created by admin on Sat Dec 16 07:49:07 UTC 2023 , Edited by admin on Sat Dec 16 07:49:07 UTC 2023
PRIMARY
INN
11885
Created by admin on Sat Dec 16 07:49:07 UTC 2023 , Edited by admin on Sat Dec 16 07:49:07 UTC 2023
PRIMARY
SMS_ID
100000128219
Created by admin on Sat Dec 16 07:49:07 UTC 2023 , Edited by admin on Sat Dec 16 07:49:07 UTC 2023
PRIMARY
EVMPD
SUB35018
Created by admin on Sat Dec 16 07:49:07 UTC 2023 , Edited by admin on Sat Dec 16 07:49:07 UTC 2023
PRIMARY
Related Record Type Details
TARGET -> AGONIST
SALT/SOLVATE -> PARENT