Xanax is the brand name for Alprazolam, which along with Valium, Klonopin, Ativan, and Serax, among other drugs, falls under a classification known as benzodiazepines.
Xanax is the most difficult of the benzodiazepines to detoxify from because they have the shortest half-life. This makes the withdrawal symptoms from Xanax more pronounced than other drugs in its class.
Xanax and its counterparts are prescribed primarily for the treatment of anxiety disorders such as Generalized Anxiety Disorder(GAD) , General Panic Disorder (GPD) and miscellaneous phobias, such as agoraphobia.
They are occasionally prescribed for sleep disturbances, temporary situational anxiety, or muscle tension.