Xanax has been out since the early 1980s, and is a horrible drug.
"It is extremely addictive when used long-term, making Xanax addiction and abuse a serious concern. Tolerance to Xanax develops quickly, requiring the user to take more of the drug to achieve the desired effects. Someone with a Xanax addiction may take up to 20 or 30 pills per day. Once a Xanax addiction has taken hold, daily responsibilities such as school, work, or family are ignored as energy is redirected toward drug-seeking behavior."