Phenibut: avoid at all costs!

My Lovely Wife has often has trouble sleeping and an alternative health provider she was seeing recommended Phenibut:

She has tinnitus and found that Phenibut was aggravating it: moved the sound from a lower tone to a high, piercing sound. So she stopped.

At that point she found she couldn't sleep at all for several days until finally trying the natural form of the same sort of substance, GABA:

Only then did she start reading about the Phenibut withdrawal and side effects: not only aggravation of tinnitus but on withdrawal all sorts of stuff up to and including psychosis.

If you have trouble relaxing or sleeping you might try GABA, but avoid Phenibut! Check out the Reddit thread on this for further horror stories!