what is phenibut good for
Phenibut was first synthesized by the Russians during the 1960s to relieve tension, anxiety and fear, according to one 2001 study. (It is still prescribed there for these purposes today.) Phenibut is a nootropic or smart drug, a supplement that purports to enhance cognitive performance by increasing memory and attention.
A good benzo for this would be etizolam (not technically a benzo, but does the same thing), because etizolam is an easily obtainable research chemical which acts on the GABA-a receptor and phenibut acts on the GABA-b receptor (or the other way around?), so that way you can keep going for a longer time before the eventual tolerance and physical addiction occurs.