The Xanax drug, also known as alprazolam, belongs to the class of medications known as benzodiazepines. It is used to treat anxiety disorders as well as panic disorders. It works by slowing down the messages sent by brain nerves. Only doctors who have been certified by the FDA are able to offer it for sale. The use of Xanax without a prescription could be risky. It can also be legal. Legality ...