Alprazolam is the generic name of Xanax, and it comes under the class of drugs known as benzodiazepine. Doctors prescribe it for the treatment of anxiety disorder and panic disorder. It is also suggested for the treatment of sleeping problems and alcohol withdrawals. The inactive composition of Xanax is Cellulose, corn starch, docusate sodium, lactose, magnesium stearate, silicon dioxide, and sodium benzoate. Generalized Anxiety Disorder (GAD) occurs in a person when a person feels anxious for more than six months. Other signs of anxiety disorder are Restlessness, Fatigue, low energy, Difficulty concentrating, Irritability, Muscle tension, disturbance in sleeping, etc.