Xanax XR (Alprazolam) may treat, side effects, dosage, drug interactions, warnings, patient labeling, reviews, and related medications including drug comparison and health resources. Learn about alprazolam ER (Xanax XR) usage and dosing. Read the latest news and reviews about the drug as well as potential side effects and popular alternatives. Overview: Alprazolam is a benzodiazepine medicine used to treat anxiety and panic disorder. It works by calming activity in the brain, which helps ease worry and promote relaxation. People take it. XANAX XR is a benzodiazepine indicated for the treatment of panic disorder with or without agoraphobia, in adults. (1) The efficacy of XANAX XR Tablets in the treatment of panic disorder was established in two 6-week, placebo-controlled studies of XANAX XR in patients with panic disorder. To reduce the risk of withdrawal reactions, use a gradual taper to discontinue XANAX XR or reduce the dosage (see DOSAGE AND ADMINISTRATION and WARNINGS). XANAX XR Tablets contain. Xanax XR is a benzodiazepine used to treat panic disorder, with or without a fear of places and situations that might cause agoraphobia. Detailed dosage guidelines and administration information for Xanax XR (alprazolam). Includes dose adjustments, warnings and precautions. Find medical information for Xanax XR on epocrates online, including its dosing, contraindications, drug interactions, and pill pictures. Xanax XR (alprazolam) is used to treat anxiety disorders, panic disorders, and anxiety caused by depression. Includes Xanax XR side effects, interactions, indications.