Xanax (alprazolam) is a medication that treats anxiety. It calms down your nervous system. Alprazolam (Xanax, Xanax XR, Niravam) is an anti-anxiety drug that belongs to the benzodiazepine class. Common side effects are fatigue, constipation, changes in weight, and addiction (dependency). 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. Alprazolam is used to treat anxiety disorders and panic disorder (sudden, unexpected attacks of extreme fear and worry about these attacks). Alprazolam is in a class of medications called benzodiazepines. Alprazolam is a benzodiazepine. Benzodiazepines belong to the group of medicines called central nervous system (CNS) depressants, which are medicines that slow down the nervous system. Alprazolam is taken orally, and is absorbed well – 80% of alprazolam binds to proteins in the serum (the majority binding to albumin). The concentration of alprazolam peaks after one to two hours. Alprazolam generic tablets are indicated for the management of anxiety disorder. Learn about side effects, drug interactions, dosages, warnings, and more. Xanax (alprazolam) is a benzodiazepine medication used to treat anxiety and panic disorders. Includes side effects, interactions and safety information. Get the facts on alprazolam’s dosages. You can also learn how to take the drug, which forms it comes in, and more. Alprazolam is used to treat anxiety and panic disorders. Learn how it works, common side effects, dosing, warnings, and safety tips.