Much like Valium, Xanax works by enhancing the effects of the neurotransmitter gamma-aminobutyric acid (GABA) in the brain, leading to a calming effect that helps alleviate symptoms of anxiety and panic.

However, Xanax is often preferred for the acute management of anxiety or panic attacks due to its relatively rapid onset of action, making it effective for providing immediate relief during moments of intense anxiety or panic.

As with any benzodiazepine, it's crucial to use Xanax exactly as prescribed and to be aware of the potential for dependence and addiction, especially with long-term use or at higher doses. It's typically prescribed for short periods, and abrupt discontinuation can lead to withdrawal symptoms, so it's important to taper off the medication under medical supervision when stopping treatment.