Index > Factsheets > Phenibut


SummaryA derivative of GABA with the addition of a phenyl ring which allows it to cross the Blood Brain Barrier. Is mostly used as an anti-anxiety and anti-insomnia medication. Tolerance and physical dependency builds very quickly.
DoseLight: 300-600mg's Common: 600-1200mg Strong: 1200-1800mg+
NOTE: This substance has a very fast tolerance raise, and also seems to vary a lot person to person. Start low and work your way up. We would recommend starting with a low dose and working it up every 50-100mg's every two weeks.
Onset30-120 mins to feel it, peak around t+3-4h
Duration9-16 hours.
EffectsAnxiolytic, Sedative, Muscle Relaxant, Amnesia, Dystaxia, Hypnotic.
After-effects1-24 hours.
AvoidOther CNS depressants such as alcohol