Alprazolam, a member of the benzodiazepine class of drugs, is marketed under the brand name Xanax. Benzodiazepines are central nervous system depressants that works by intensifying the effects of a neurotransmitter called gamma-aminobutyric acid (GABA). GABA has soothing or sedative effects because of its inhibitory actions on the brain. Xanax is frequently recommended to treat panic attacks, anxiety disorders, and occasionally other ailments like sleeplessness. It is well renowned for having a quite quick start to action, which makes it useful for treating severe anxiety or panic attack symptoms.