Xanax is a brand name for the prescription medication alprazolam. It is a benzodiazepine drug that is commonly prescribed to treat anxiety disorders and panic disorders. Xanax works by enhancing the effects of a neurotransmitter called gamma-aminobutyric acid (GABA) in the brain, which helps reduce anxiety and promote relaxation.

It's important to note that Xanax should only be used as prescribed by a healthcare professional. Using Xanax without a prescription or in higher doses than recommended can lead to serious risks, including dependence, addiction, sedation, respiratory depression, and overdose. Xanax is classified as a controlled substance due to its potential for abuse.