Xanax, the brand name for alprazolam, is a benzodiazepine medication commonly prescribed to treat anxiety disorders and panic attacks. It works by enhancing the effects of gamma-aminobutyric acid (GABA), a neurotransmitter in the brain that helps to calm nerves and reduce excessive brain activity. Xanax is available in various forms, including immediate-release tablets, extended-release tablets, and oral solutions, allowing for tailored treatment based on individual needs.