Xanax XR 3mg is a alprazolam extended-release. It is a type of Xanax and is prescribed to treat anxiety disorders, including generalized anxiety disorder (GAD) and panic disorders. As an extended-release formulation, it provides a gradual and prolonged effect, making it suitable for individuals who require consistent symptom management throughout the day. It works by affecting the central nervous system to reduce symptoms of anxiety and panic. It belongs to benzodiazepines class, which enhance the activity of gamma-aminobutyric acid (GABA), a neurotransmitter in the brain. GABA has a calming effect, helping to reduce excessive brain activity that can lead to anxiety, panic attacks, and related symptoms.