Best Place to order Xanax for treatment for anxiety and panic disorder. It is a class of drugs category of medicine. It is called a benzodiazepine. It calms your nervous system. works by lessening abnormal excitement in the brain. It balances out chemicals in your body. You can take this medicine to feel depressed and feel relaxed. Xanax is available in 1mg, 2mg, 3mg, 0.5mg, and 0.25mg.