GABA (or gamma-aminobutyric acid) is a chemical messenger that moves from nerve cells to the brain and blocks specific signals. GABA has properties similar to benzodiazepines without serious side effects.  Although many people use GABA supplements to ease their benzodiazepine withdrawal symptoms, it is essential to consult a physician first. Interestingly, evidence suggests that GABA is, in fact, ineffective for benzo withdrawal as the problem is not a shortage of GABA but rather a difficulty in synthesising it. Research also links low levels of GABA to anxiety disorders.