Pharma GABA and similatr street drug

Way back in 18 when I started all this some practitioner gave me something I believe was called Pharma GABA At the time I remember believing it was way stronger than regular GABA but now wondering if I have that wrong or whether there is another form of GABA that is stronger There was something in it beside GABA that seemed to be riskier and I do recall they would not say how much of this other compound was in the formula I was taking I also remember there is a street drug that is a cousin Has either four or five letters and people here have talked about withdrawing from it

Phenibut is what I was thinking of, but still wondering what the prescription GABA thing I got was