Interpersonal therapy (IPT) is most often used on a one-on-one basis to treat depression or dysthymia (a more persistent but less severe form of depression). The current manual-based form of IPT used today was developed in the 1980's by Gerald Klerman, M.D., and Myrna Weissman, M.D.
IPT is based on the idea that improving communication patterns and the ways people relate to others will effectively treat depression. IPT helps identify how a person interacts with other people. When a behavior is causing problems, IPT guides the person to change the behavior. IPT explores major issues that may add to a person's depression, such as grief, or times of upheaval or transition. Sometimes IPT is used along with antidepressant medications.
IPT varies depending on the needs of the patient and the relationship between the therapist and patient. Basically, a therapist using IPT helps the patient identify troubling emotions and their triggers. The therapist helps the patient learn to express appropriate emotions in a healthy way. The patient may also examine relationships in his or her past that may have been affected by distorted mood and behavior. Doing so can help the patient learn to be more objective about current relationships.
Studies vary as to the effectiveness of IPT. It may depend on the patient, the disorder, the severity of the disorder, and other variables. In general, however, IPT is found to be effective in treating depression.
A variation of IPT called interpersonal and social rhythm therapy (IPSRT) was developed to treat bipolar disorder. IPSRT combines the basic principles of IPT with behavioral psychoeducation designed to help patients adopt regular daily routines and sleep/wake cycles, stick with medication treatment, and improve relationships. Research has found that when IPSRT is combined with medication, it is an effective treatment for bipolar disorder. IPSRT is as effective as other types of psychotherapy combined with medication in helping to prevent a relapse of bipolar symptoms.