Xanax is recommended for the treatment of anxiety disorder. Anxiety is identified in various ways like Unrealistic worry and apprehension, Symptoms of restlessness, Aches, Trembling, Shortness of breath, Smothering sensation, Palpitations, Sweating, Cold, clammy hands, Light-headedness, Flushing, Exaggerated startle responses, Problems concentrating and Insomnia. It is also advised for the treatment of anxiety-related to panic disorders. Panic attacks occur unexpectedly, which requires a large dose of Xanax.