Phenibut is a mental stimulant, sometimes used to treat anxiety disorders. This drug was originally an "astronaut's drug".
Phenibut, as a GABA analogue, is a sedative targeting the central nervous system and has anti anxiety and sedative effects.
Phenibut is often used to prepare antidepressants. It is a very important pharmaceutical intermediate, which can be used in laboratory research and development process and chemical pharmaceutical production process.