The short version
- •Group therapy is psychotherapy delivered to several people together by one or more trained therapists — a format, not a single method (CBT, DBT, IPT, and process groups can all be run as groups).
- •For many conditions it is as effective as individual therapy, and the group itself adds unique ingredients: universality ("I'm not alone"), peer feedback, modeling, and a live setting to practice relating to others.
- •It is distinct from a peer support group: group therapy is led by a clinician with a therapeutic structure and goals.
- •It has good evidence across anxiety, depression, trauma, and substance use, and is often more accessible and affordable than individual therapy.
- •It directly counteracts the isolation and withdrawal that feed depression and anxiety.
- •Group formats pair well with ketamine — including structured integration or skills groups that help consolidate gains and reduce isolation.
What it is
Group therapy is a form of psychotherapy in which a small group of people (often 5-12) meets regularly with one or two trained therapists to work on shared or related difficulties. It is a delivery format rather than a single technique: cognitive-behavioral, dialectical-behavioral, interpersonal, psychodynamic, and process-oriented approaches can all be run in groups, and the structure ranges from skills-teaching to open process work. Beyond the specific method, the group provides therapeutic factors that individual therapy cannot — universality (seeing others share the struggle reduces shame and isolation), instillation of hope, interpersonal learning and feedback, altruism (helping others), and a real-time arena to notice and practice new ways of relating. A trained clinician leads, distinguishing group therapy from a peer-led support group. It is widely used and, for many conditions, performs comparably to individual therapy while reaching more people at lower cost.
What it helps with
Group CBT for anxiety disorders has solid efficacy evidence and offers exposure to a social setting as part of the work.
A particularly good fit — the group is itself a supportive exposure to feared social evaluation.
Effective for depression and directly counters the withdrawal and isolation that sustain it.
Loneliness
The shared experience and connection of a therapy group directly address isolation.
What to expect
A small, consistent group
Usually 5-12 members meeting regularly with one or two therapists; many groups are closed (same members) to build trust.
Structure varies
From skills-teaching groups (CBT, DBT) to open process groups; the therapist sets norms and keeps it safe and productive.
Shared and individual goals
You work on your own goals while benefiting from others' experiences, feedback, and support.
Confidentiality and safety
Ground rules protect privacy; the clinician manages group dynamics so it stays therapeutic.
The evidence
Group psychotherapy has a strong evidence base and, across many conditions, performs comparably to individual therapy. Meta-analytic work (Barkowski 2020) found group psychotherapy efficacious for anxiety disorders, and group formats are well-supported for depression, trauma, and substance use as well. Its added value lies in the group-specific therapeutic factors and in expanding access at lower cost.
How it pairs with ketamine
Group formats complement ketamine in two ways. First, structured skills or integration groups give patients a place to consolidate what ketamine opens up — processing insights, building regulation skills, and sustaining motivation — at lower cost than individual therapy. Second, the connection and shared experience of a group directly counter the isolation that so often accompanies treatment-resistant depression and that ketamine alone doesn't address. For patients who can't access frequent individual therapy, a group can be the practical complement that helps ketamine's gains translate into lasting change.
Frequently asked
Is group therapy as good as individual therapy?
For many conditions, yes — research finds group therapy comparably effective to individual therapy, while adding ingredients individual work can't: seeing you're not alone, peer feedback, and a live setting to practice relating. It's also often more accessible and affordable.
How is it different from a support group?
Group therapy is led by a trained clinician with a therapeutic structure and goals; a peer support group is typically member-led and focused on mutual support. Both help, but group therapy is a treatment.
Isn't it intimidating to share in a group?
It can feel daunting at first, but the therapist sets clear norms and safety, and most people find the shared experience quickly becomes a source of relief and connection rather than exposure. For social anxiety specifically, the group is itself a gentle, supportive exposure.
Does group therapy work with ketamine?
Yes — structured skills or integration groups help consolidate what ketamine opens up, and the connection counters the isolation that often accompanies depression. A group can be a practical, affordable complement to ketamine treatment.
References
- Barkowski S et al. 2020, Psychotherapy Research. Meta-analysis finding group psychotherapy efficacious for anxiety disorders. PMID 32093586