Xanax is the brand name for alprazolam, a medication in the benzodiazepine class. It is commonly prescribed to manage anxiety disorders and panic disorders. Xanax is used to treat anxiety disorders, including generalized anxiety disorder (GAD) and anxiety associated with depression. It is also prescribed for panic disorder, which is characterized by recurrent and unexpected panic attacks. Alprazolam works by enhancing the effects of gamma-aminobutyric acid (GABA), a neurotransmitter that inhibits brain activity. This produces a calming effect that helps reduce anxiety and panic symptoms.