What is Xanax? Xanax is an antianxiety medication that belongs to a class of drugs known as benzodiazepines. Xanax works by attaching to a receptor in your brain called the GABA-A (gamma-aminobutyric acid-A) receptor. When Xanax binds to this receptor, it has a calming effect in the brain. For anxiety disorders, Xanax is often prescribed […]