panic disorde
"This medicine is a life-saver. Before I began taking Xanax the suffering I endured was indescribable. I panicked when I rode on trains or buses. I almost went out of my mind if a train stopped or slowed down between stations and I could not get off. I felt trapped. 

  During a job interview I suffered such a severe panic attack that I wanted to flee into the street. My doctor prescribed Xanax and I was able to start and continue to work. Otherwise, I would have committed suicide. Fortunately, I get a generous supply each month, which I use up.

I've heard horror stories from people whose doctors will not prescribe benzodiazepines at all. Also, some states place unnecessary  red tape on Xanax prescriptions."