Hi, bit of a late response, but I was wondering about the combo of GBL/GHB, alprazolam, zolpidem, and alcohol? Or at least the GBL/xanax combo. I know that 1,4 butanediol conflicts with alcohol and neutralizes somehow instead of increasing the CNS depressant effects, so I was wondering if any of these in combination with GBL would be more or less effective? I've tried straight xanax and ambien before but woke up and threw up for a while without incident.