Xanax, a brand name for the drug alprazolam, is a potent central nervous system depressant commonly prescribed to treat anxiety and panic disorders. Known for its calming effects, Xanax works by slowing down brain activity, resulting in a sense of relaxation and relief from anxiety symptoms. It binds to specific receptors in the brain to enhance the effects of a neurotransmitter called gamma-aminobutyric acid (GABA), which helps regulate brain activity. When used as prescribed under medical supervision, Xanax can be effective in managing anxiety, but it is crucial to follow dosage instructions to avoid dependence and potential side effects.