Xanax is the brand name for alprazolam, a medication in the benzodiazepine class. It is commonly prescribed to manage anxiety disorders and panic disorders. Alprazolam is used to treat generalized anxiety disorder (GAD) and other anxiety-related conditions. It is also prescribed for panic disorder, with or without agoraphobia, to reduce the frequency and severity of panic attacks. Alprazolam works by enhancing the effects of gamma-aminobutyric acid (GABA), a neurotransmitter that inhibits brain activity. This calming effect helps to reduce anxiety and panic symptoms.