Phenibut powder(contracted from B-phenyl-r-aminobutyric acid) is a central nervous system (CNS) depressantand derivative of the naturally occurring inhibitory neurotransmitter r-aminobutyric acid (GABA).

Phenibut powder is sold as a nutritional supplement, and is not approved as a pharmaceutical in the United States or Europe, but in Russiait it is sold as a psychotropic drug. It has been reported by some to possess nootropicactions for its ability to improve neurological functions, but other researchers have not observed these effects.

1.Phenibut is a derivative of the naturally occurring inhibitory neurotransmitter GABA.

2.Phenibut is used by bodybuilders to reduce fatigue and improve neurological functions.

3.Phenibut has been and is still used medically to treat stress, relieve tension, improve sleep, and as a

potentiate for other medications.

Phenibut is a non-prescription pharmaceutical that is actually a GABA molecule with the addition of a phenyl group. Russian researchers discovered that by changing GABA into 4-Amino-3-Phenylbutyric Acid, it was able to cross more easily into the nervous system & across the blood-brain barrier. Since it is a GABA, an inhibitory neurotransmitter, derivative, Phenibut increases GABA levels.Phenibut is a white crystalline powder and the taste is very sour. It is readily soluble in water, soluble in alcohol, and the pH of a 2.5% water solution is between about 2.3 and 2.7.