Alprazolam, commonly known by the brand name Xanax, is a medication primarily used to treat anxiety and panic disorders. It belongs to the class of drugs known as benzodiazepines, which work by enhancing the effects of a neurotransmitter called gamma-aminobutyric acid (GABA) in the brain.

Alprazolam is available in tablet form and is typically taken orally. It is fast-acting, with effects usually felt within an hour of ingestion. The drug helps to reduce excessive brain activity, producing a calming effect and relieving symptoms of anxiety and panic.