Phenibut was synthesized in USSR as a standard component of a cosmonauts medical kit . While it has not been approved as a pharmaceutical in US or Europe, it is widely sold in Russia as a psychotropic drug.
Where to Purchase
400-500 mg per serving
1. Högberg, L, I Szabó, and J Ruusa. "[Phenibut yielded withdrawal symptoms and psychosis. Drugs for cosmonauts--now marketed as dietary supplements online]."Lakartidningen 110.16 (2012): 825-827.
2. Dietlein, Lawrence F. "Space Biology and Medicine. Volume 4." (2004).