Xanax (Alprazolam) is a commonly prescribed drug to help alleviate symptoms of anxiety and panic. Xanax belongs to a class of drugs called benzodiazepines, which are central nervous system depressants that work by enhancing the effect of the neurotransmitter "gamma-aminobutyric acid" (GABA). GABA is essentially the brain's tranquilizing neurotransmitter...