Skip to main content
TherapyExplained

Interpersonal Psychotherapy (IPT)

A guide to Interpersonal Psychotherapy: how it addresses relationship patterns and life transitions to treat depression, grief, and more.

8 min readLast reviewed: March 24, 2026

What Is Interpersonal Psychotherapy?

Interpersonal Psychotherapy, commonly known as IPT, is a structured, time-limited therapy originally developed in the 1970s by Gerald Klerman and Myrna Weissman at Yale University. It was designed specifically to treat major depression by focusing on the interpersonal context in which depressive symptoms develop and are maintained.

The central idea behind IPT is that psychological symptoms — especially depression — do not occur in a vacuum. They arise in the context of your relationships and social roles. By improving how you navigate interpersonal challenges, IPT alleviates the symptoms those challenges produce.

How It Works

IPT identifies four key interpersonal problem areas and focuses treatment on one or two that are most relevant to your current difficulties:

  1. Grief and loss: Processing complicated bereavement when the natural mourning process has stalled or become overwhelming.
  2. Role disputes: Addressing conflicts with a significant other — a partner, family member, friend, or coworker — where expectations differ and resolution has been difficult.
  3. Role transitions: Adapting to major life changes such as retirement, divorce, becoming a parent, job loss, or diagnosis of an illness.
  4. Interpersonal deficits: Building social skills and connections when isolation or a persistent lack of fulfilling relationships contributes to depression.

Treatment typically unfolds in three phases over 12 to 16 sessions:

  • Initial phase (sessions 1-3): Assess symptoms, review your relationships and social functioning, identify the primary interpersonal problem area, and establish the treatment focus.
  • Middle phase (sessions 4-12): Work directly on the identified problem area using specific strategies — improving communication, processing grief, navigating transitions, or building social skills.
  • Termination phase (sessions 13-16): Consolidate gains, anticipate future challenges, and prepare for ending therapy.

What to Expect

IPT sessions last 50 to 60 minutes and occur weekly. The therapy is collaborative and focused:

  • You discuss current relationships and events. IPT stays focused on your present interpersonal life rather than exploring the distant past.
  • The therapist actively guides the conversation. Unlike more open-ended approaches, IPT therapists direct attention to the agreed-upon problem area.
  • Communication analysis is used. You may be asked to describe specific conversations in detail so the therapist can help you identify patterns and find more effective ways to communicate.
  • Emotions are connected to relationships. The therapist consistently links how you feel to what is happening in your interpersonal world.

12-16 sessions

IPT is a time-limited treatment, typically completed in 12 to 16 weekly sessions, making it one of the most efficient evidence-based treatments for depression

Conditions It Treats

IPT has the strongest evidence for:

  • Major depression — IPT's primary indication and where the evidence is strongest
  • Grief and complicated bereavement — helping people process loss when mourning becomes stuck
  • Relationship difficulties — conflicts, disconnection, and communication breakdowns
  • Perinatal depression — both prenatal and postpartum depression
  • Eating disorders — particularly bulimia nervosa and binge eating disorder
  • Social anxiety — when interpersonal difficulties maintain avoidance
  • Bipolar disorder — adapted as Interpersonal and Social Rhythm Therapy (IPSRT)

Effectiveness

IPT is among the most rigorously studied psychotherapies:

  • Multiple large-scale randomized controlled trials have demonstrated IPT's effectiveness for depression, with outcomes comparable to antidepressant medication and CBT.
  • The National Institute of Mental Health Treatment of Depression Collaborative Research Program found IPT effective for moderate to severe depression.
  • IPT has been successfully adapted across cultures and is used worldwide, including in low-resource settings.
  • For perinatal depression, IPT is often considered the treatment of choice given concerns about medication use during pregnancy and breastfeeding.
FeatureIPTCBT
FocusInterpersonal relationshipsThought patterns and behaviors
Duration12-16 sessions8-20 sessions
HomeworkMinimalCentral component
Past explorationRecent interpersonal eventsCurrent thought patterns
Best forDepression linked to relationships/lossDepression with cognitive distortions

Frequently Asked Questions

IPT is more structured than general relationship discussion. It uses specific techniques — communication analysis, role-playing, exploration of emotional responses — to help you change interpersonal patterns that maintain depression. The focus on relationships is strategic and evidence-based.

Yes. IPT addresses all forms of interpersonal life, including friendships, family relationships, work relationships, and social isolation. The interpersonal deficits problem area specifically addresses building connections when loneliness or isolation contributes to depression.

While both explore relationships, IPT is time-limited, structured, and focused on current interpersonal problems. Psychodynamic therapy typically explores deeper unconscious patterns and early life experiences over a longer period. IPT is more directive and goal-oriented.

Yes. Research supports the effectiveness of IPT delivered via telehealth, and many therapists offer IPT through video sessions. The interpersonal focus translates well to a virtual format.

Understanding IPT

Compared with Other Approaches

For Specific Conditions

Find an IPT Therapist

Connect with a licensed therapist trained in Interpersonal Psychotherapy who can help you improve your relationships and overcome depression.

Take the Therapy Quiz

Treats These Conditions

Compare With