What is Phenibut and where does Phenibut come from?

Phenibut (beta-phenyl- gamma-aminobutyric acid, also spelled fenibut, originally known as phenigamma) is a derivative of the neurotransmitter GABA that crosses the blood-brain barrier [1]. It was developed in Russia, and there it has been used clinically since the 1960's for a range of purposes. Phenibut has both nootropic and anxiolytic (anxiety-reducing) properties, and it is commonly compared to diazepam (Valium), baclofen, and piracetam, and it has similarities to and differences from all of these substances.

Who needs it and what are some symptoms of deficiency?

In Russia, phenibut is commonly used to treat many neuroses, including post-traumic stress disorder, stuttering, and insomnia. In double blind placebo-controlled studies, phenibut has reportedly been found to improve intellectual function, improve physical strength, and reduce fatigue in neurotic and psychotic patients. There are no symptoms of deficiency.

How much should be taken? Are there side effects?

Strictly adhere to label recommendations. Since the body does become use to dosage levels, Phenibut should be cycled to maintain effectiveness. Toxicity of Phenibut is very low and no reports of side effect have been reported.

Recent Studies

Phenibut Products