Xanax, the brand name for alprazolam, is a prescription medication belonging to the benzodiazepine class, commonly used to treat anxiety disorders and panic disorders. It works by enhancing the activity of gamma-aminobutyric acid (GABA), a neurotransmitter that helps calm brain activity, providing relief from anxiety, stress, and panic attacks. Xanax is one of the most widely prescribed medications for managing these conditions due to its fast-acting effects.