Xanax is a brand name for the medication alprazolam, which belongs to a class of drugs called benzodiazepines. Benzodiazepines are central nervous system depressants that are commonly prescribed to treat anxiety disorders, panic disorders, and occasionally, certain types of depression. Xanax is primarily prescribed for the management of generalized anxiety disorder (GAD), social anxiety disorder (SAD), and panic disorder. It works by enhancing the effects of gamma-aminobutyric acid (GABA), a neurotransmitter in the brain that helps to reduce anxiety and promote relaxation.