Stress suppression - Phenibut has medium to powerful anxiolytic outcomes, akin to Alcoholic beverages but usually fewer powerful than benzodiazepines.GABA-B Receptor Agonist: The primary mechanism of motion of phenibut is as an agonist within the GABA-B (gamma-aminobutyric acid style B) receptors. GABA is the primary inhibitory neurotransmitter ins