In cognitive therapy, discussions between the patient and the therapist are not usually focused on the patient's past, as is the case with some forms of psychotherapy. Instead, conversations focus on the difficulties and successes the patient is having at the present time, and on skills the patient needs to learn.

The behavioral portion of cognitive-behavioral therapy may involve systematic training in relaxation techniques. By learning to relax, the patient may acquire the ability to reduce generalized anxiety and stress that often sets the stage for panic attacks.

Breathing exercises are often included in the behavioral therapy. The patient learns to control his or her breathing and avoid hyperventilation – a pattern of rapid, shallow breathing that can trigger or exacerbate some people's panic attacks.

Another important aspect of behavioral therapy is exposure to internal sensations called interoceptive exposure. During interoceptive exposure the therapist will do an individual assessment of internal sensations associated with panic. Depending on the assessment, the therapist may then encourage the patient to bring on some of the sensations of a panic attack by, for example, exercising to increase heart rate, breathing rapidly to trigger lightheadedness and respiratory symptoms, or spinning around to trigger dizziness. Exercises to produce feelings of unreality may also be used. Then the therapist teaches the patient to cope effectively with these sensations and to replace alarmist thoughts such as "I am going to die," with more appropriate ones, such as "It's just a little dizziness – I can handle it."

Another important aspect of behavioral therapy is "in vivo" or real-life exposure. The therapist and the patient determine whether the patient has been avoiding particular places and situations, and which patterns of avoidance are causing the patient problems. They agree to work on the avoidance behaviors that are most seriously interfering with the patient's life. For example, fear of driving may be of paramount importance for one patient, while inability to go to the grocery store may be, at most, handicapping for another.

Some therapists will go to an agoraphobic patient's home to conduct the initial sessions. Often therapists take their patients on excursions to shopping malls and other places the patients have been avoiding. Or they may accompany their patients who are trying to overcome fear of driving a car.

The patient approaches a feared situation gradually, attempting to stay in spite of rising levels of anxiety. In this way the patient sees that as frightening as the feelings are, they are not dangerous, and they do pass. On each attempt, the patient faces as much fear as he or she can stand. Patients find that with this step-by-step approach, aided by encouragement and skilled advice from the therapist, they can gradually master their fears and enter situations that had seemed unapproachable.

Many therapists assign the patient "homework" to do between sessions. Sometimes patients spend only a few sessions in one-on-one contact with a therapist and continue to work on their own with the aid of a printed manual.

Often the patient will join a therapy group with others striving to overcome panic disorder or phobias, meeting with them weekly to discuss progress, exchange encouragement, and receive guidance from the therapist.

Cognitive-behavioral therapy generally requires at least 8 to 12 weeks. Some people may need a longer time in treatment to learn and implement the skills. This kind of therapy, which is reported to have a low relapse rate, is effective in eliminating panic attacks or reducing their frequency. It also reduces anticipatory anxiety and the avoidance of feared situations.

Treatment with Medications.   In this treatment approach, which is also called pharmacotherapy, a prescription medication is used both to prevent panic attacks or reduce their frequency and severity, and to decrease the associated anticipatory anxiety. When patients find that their panic attacks are less frequent and severe, they are increasingly able to venture into situations that had been off-limits to them. In this way, they benefit from exposure to previously feared situations as well as from the medication.

The three groups of medications most commonly used are the tricyclic antidepressants, the high-potency benzodiazepines, and the monoamine oxidase inhibitors (MAOIs). Determination of which drug to use is based on considerations of safety, efficacy, and the personal needs and preferences of the patient. Some information about each of the classes of drugs follows.

The tricyclic antidepressants were the first medications shown to have a beneficial effect against panic disorder. Imipramine is the tricyclic most commonly used for this condition. When imipramine is prescribed, the patient usually starts with small daily doses that are increased every few days until an effective dosage is reached. The slow introduction of imipramine helps minimize side effects such as dry mouth, constipation, and blurred vision. People with panic disorder, who are inclined to be hypervigilant about physical sensations, often find these side effects disturbing at the outset. Side effects usually fade after the patient has been on the medication a few weeks.

It usually takes several weeks for imipramine to have a beneficial effect on panic disorder. Most patients treated with imipramine will be panic-free within a few weeks or months. Treatment generally lasts from 6 to 12 months. Treatment for a shorter period of time is possible, but there is substantial risk that when imipramine is stopped, panic attacks will recur. Extending the period of treatment to 6 months to a year may reduce this risk of a relapse. When the treatment period is complete, the dosage of imipramine is tapered over a period of several weeks.

The high-potency benzodiazepines are a class of medications that effectively reduce anxiety. Alprazolam, clonazepam, and lorazepam are medications that belong to this class. They take effect rapidly, have few bothersome side effects, and are well tolerated by the majority of patients. However, some patients, especially those who have had problems with alcohol or drug dependency, may become dependent on benzodiazepines.

Generally, the physician prescribing one of these drugs starts the patient on a low dose and gradually increases it until panic attacks cease. This procedure minimizes side effects.

Treatment with high-potency benzodiazepines is usually continued for 6 months to a year. One drawback of these medications is that patients may experience withdrawal symptoms – malaise, weakness, and other unpleasant effects – when the treatment is discontinued. Reducing the dose gradually generally minimizes these problems. There may also be a recurrence of panic attacks after the medication is withdrawn.

Of the MAOIs, a class of antidepressants which have been shown to be effective against panic disorder, phenelzine is the most commonly used. Treatment with phenelzine usually starts with a relatively low daily dosage that is increased gradually until panic attacks cease or the patient reaches a maximum dosage of about 100 milligrams a day.

Use of phenelzine or any other MAOI requires the patient to observe exacting dietary restrictions, because there are foods and prescription drugs and certain substances of abuse that can interact with the MAOI to cause a sudden, dangerous rise in blood pressure. All patients who are taking MAOIs should obtain their physician's guidance concerning dietary restrictions and should consult with their physician before using any over-the-counter or prescription medications.

As in the case of the high-potency benzodiazepines and imipramine, treatment with phenelzine or another MAOI generally lasts 6 months to a year. At the conclusion of the treatment period, the medication is gradually tapered.

Newly available antidepressants such as fluoxetine (one of a class of new agents called serotonin reuptake inhibitors) appear to be effective in selected cases of panic disorder. As with other anti-panic medications, it is important to start with very small doses and gradually increase the dosage.

Scientists supported by NIMH are seeking ways to improve drug treatment for panic disorder. Studies are underway to determine the optimal duration of treatment with medications, who they are most likely to help, and how to moderate problems associated with withdrawal.

Combination Treatments.   Many believe that a combination of medication and cognitive-behavioral therapy represents the best alternative for the treatment of panic disorder. The combined approach is said to offer rapid relief, high effectiveness, and a low relapse rate. However, there is a need for more research studies to determine whether this is in fact the case.

Comparing medications and psychological treatments, and determining how well they work in combination, is the goal of several NIMH-supported studies. The largest of these is a 4-year clinical trial that will include 480 patients and involve four centers at the State University of New York at Albany, Cornell University, Hillside Hospital/Columbia University, and Yale University. This study is designed to determine how treatment with imipramine compares with a cognitive-behavioral approach, and whether combining the two yields benefits over either method alone.

Psychodynamic Treatment.   This is a form of "talk therapy" in which the therapist and the patient, working together, seek to uncover emotional conflicts that may underlie the patient's problems. By talking about these conflicts and gaining a better understanding of them, the patient is helped to overcome the problems. Often, psychodynamic treatment focuses on events of the past and making the patient aware of the ramifications of long-buried problems.

Although psychodynamic approaches may help to relieve the stress that contributes to panic attacks, they do not seem to stop the attacks directly. In fact, there is no scientific evidence that this form of therapy by itself is effective in helping people to overcome panic disorder or agoraphobia. However, if a patient's panic disorder occurs along with some broader and pre-existing emotional disturbance, psychodynamic treatment may be a helpful addition to the overall treatment program.

When Panic Reoccurs

Panic disorder is often a chronic, relapsing illness. For many people, it gets better at some times and worse at others. If a person gets treatment and appears to have largely overcome the problem, it can still worsen later for no apparent reason. These recurrences should not cause a person to despair or consider himself or herself a "treatment failure." Recurrences can be treated effectively, just like an initial episode.

In fact, the skills that a person learns in dealing with the initial episode can be helpful in coping with any setbacks. Many people who have overcome panic disorder once or a few times find that, although they still have an occasional panic attack, they are now much better able to deal with the problem. Even though it is not fully cured, it no longer dominates their lives, or the lives of those around them.

Coexisting Conditions

At the NIH conference on panic disorder, the panel recommended that patients be carefully evaluated for other conditions that may be present along with panic disorder. These may influence the choice of treatment, the panel noted. The following are among the conditions frequently found to coexist with panic disorder:

Simple Phobias.   People with panic disorder often develop irrational fears of specific events or situations that they associate with the possibility of having a panic attack. Fear of heights and fear of crossing bridges are examples of simple phobias. Generally, these fears can be resolved through repeated exposure to the dreaded situations, while practicing specific cognitive-behavioral techniques to become less sensitive to them.

Social Phobia.   This is a persistent dread of situations in which the person is exposed to possible scrutiny by others and fears acting in a way that will be embarrassing or humiliating. Social phobia can be treated effectively with cognitive-behavioral therapy or medications, or both.

Depression.   About half of panic disorder patients will have an episode of clinical depression sometime during their lives. Major depression is marked by persistent sadness or feelings of emptiness, a sense of hopelessness, and other symptoms.

When major depression occurs, it can be treated effectively with one of several antidepressant drugs, or, depending on its severity, by cognitive-behavioral therapies.