Panic disorder is characterized by recurrent, unexpected panic attacks. These are usually accompanied by physical symptoms, such as a racing heart, shortness of breath, and trembling. left untreated, panic disorder can lead to avoidance of certain activities, which can in turn disrupt work, school, and social life. There are several effective treatments for panic disorder, including cognitive-behavioral therapy and medication. Cognitive-behavioral therapy helps to identify and change negative thinking patterns that contribute to anxiety. Medication can be used to manage symptoms and prevent future panic attacks. With treatment, most people with panic disorder are able to return to their normal activities.