Xanax works by reducing abnormal excitement in the brain. It can be used to treat a variety of anxiety disorders, including generalized anxiety disorder, panic disorder, and social anxiety disorder. It can also be used to reduce anxiety caused by other conditions, such as depression. When buying Xanax online, it is important to make sure that the medication is purchased from a reputable source. It is also important to be aware of any potential side effects and interactions with other medications. It is also important to talk to a doctor before taking any medication, as some people may have certain medical conditions that may not be compatible with Xanax.