OCD Treatment Options
Therapy, medication, and the evidence behind each, so you can make an informed decision about what is right for you.
There are effective, well-evidenced treatments for OCD. This guide covers the main options, what the evidence actually shows for each, and practical things to consider, including how to find a genuinely specialist therapist and what to expect from medication.
An overview
The two main evidence-based treatments for OCD are a specific type of CBT called Exposure and Response Prevention (ERP), and SSRI medication. Many people benefit most from a combination of the two, particularly where symptoms are more severe.
CBT with ERP
The gold-standard, first-line treatment for OCD, with the strongest evidence of any approach, psychological or pharmacological.
SSRIs
First-line medication option, often used alongside therapy or where therapy alone is not sufficient or accessible.
Cognitive Behavioural Therapy with Exposure and Response Prevention (ERP)
A specific, structured form of CBT designed for OCD. It is not the same as generic CBT, and this distinction matters considerably.
Strong evidence
— The best-evidenced treatment for OCD of any kind, recommended as first-line by NICE and international guidelines alike.How it works
- ERP works by gradually and deliberately exposing you to the situations, thoughts, or objects that trigger obsessions, while resisting the urge to carry out the compulsion that would normally follow.
- This allows anxiety to rise and then naturally fall on its own (habituation), teaching the brain that the feared outcome does not happen, and that the anxiety is tolerable without a compulsion to relieve it.
- Exposure is built up gradually using a hierarchy, starting with less distressing situations and working up to more challenging ones, always at a pace agreed with you.
- Multiple meta-analyses and randomised controlled trials support ERP as producing large, durable improvements, including in people who have not responded to medication alone.
- A typical course is around 12 to 20 sessions, though this varies with severity, and many therapists incorporate "homework" exposure practice between sessions, which is a core, evidence-based part of treatment, not an optional extra.
Other talking therapies
Acceptance and Commitment Therapy (ACT)
Emerging evidenceFocuses on accepting intrusive thoughts without engaging with them, rather than trying to eliminate them. Growing evidence supports its use, particularly as an adjunct to ERP or where ERP alone has not fully resolved symptoms.
Generic counselling / non-OCD-specific talking therapy
Limited evidenceGeneral counselling, psychodynamic therapy, or supportive listening without a structured, OCD-specific approach has little evidence of being effective for OCD symptoms specifically, and in some cases reassurance-based approaches can inadvertently reinforce compulsive patterns.
Choosing the right therapist
Not all therapy, and not all therapists or counsellors, are the same. The title "therapist" or "counsellor" is not a protected term in the UK in the way "doctor" is, and training, approach, and specialism vary enormously between practitioners.
It is always worth asking
- Do they have specific training and experience in treating OCD, and specifically in delivering ERP?
- Are they accredited with a recognised body (for example BABCP, the British Association for Behavioural and Cognitive Psychotherapies)?
- How many people with OCD have they treated, and what does a typical course of treatment look like with them?
- Do they use exposure-based techniques, or a more general talking/supportive approach?
A skilled, specifically trained ERP therapist tends to produce meaningfully better outcomes than a generalist counsellor, even a well-meaning and experienced one. It is entirely reasonable, and encouraged, to ask about someone's specific specialist experience before starting a course of treatment with them.
SSRIs (Selective Serotonin Reuptake Inhibitors)
The first-line medication option for OCD. Examples include fluoxetine, sertraline, fluvoxamine, paroxetine, and citalopram.
Strong evidence
— Multiple large randomised controlled trials and meta-analyses support SSRIs as effective for OCD, though effect sizes are generally somewhat smaller than for ERP.What is different about SSRIs for OCD
- OCD often requires higher doses of SSRIs than are typically used for depression or general anxiety, sometimes towards or at the maximum licensed dose.
- A full, fair trial of an SSRI for OCD typically takes 10 to 12 weeks at an adequate dose before its full effect can be judged, longer than the 4 to 6 weeks often quoted for depression.
- If one SSRI is not effective at an adequate dose after a full trial, switching to a different SSRI is a reasonable next step, response to one does not predict response to another.
- SSRIs can be used alone, but the evidence suggests the best outcomes, particularly for more severe OCD, tend to come from combining an SSRI with ERP rather than either alone.
Other medication options
Clomipramine
Strong evidenceAn older antidepressant (a tricyclic) with strong evidence for OCD, in some trials slightly outperforming SSRIs. It is generally used second-line due to a less favourable side effect profile, including effects on the heart at higher doses, which need monitoring.
Antipsychotic augmentation
Moderate evidenceFor OCD that has not responded fully to an SSRI, adding a low dose of an antipsychotic (for example risperidone or aripiprazole) can improve response in some people. This is a specialist decision, generally made once first-line options have been properly tried.
Side effects & safety
SSRIs are generally well tolerated, but side effects are common, particularly in the first couple of weeks, and there are some genuinely important safety points to be aware of.
Common side effects
Most side effects settle within the first 1 to 2 weeks. Starting at a low dose and increasing gradually helps reduce initial side effects.
An important safety point: suicidal thoughts
There is a recognised, if uncommon, increased risk of suicidal thinking when starting an SSRI, particularly in the first few weeks of treatment or after a dose increase. This risk is more pronounced in children, teenagers, and young adults under 25, and is the reason the MHRA requires specific warnings on these medications for this age group.
This does not mean SSRIs should not be used, for the great majority of people they are safe and effective, but it does mean close monitoring matters, particularly early on. We will always discuss this risk with you before starting treatment and agree a monitoring plan, especially if you are under 25.
Contact us urgently, or NHS 111, if you or someone you support develops new or worsening thoughts of suicide or self-harm, especially in the first few weeks of starting or changing dose.
Other management options
Alongside formal therapy and medication, several other approaches can genuinely help, though they work best as an addition to, not a replacement for, evidence-based treatment.
Self-help resources
Structured, ERP-based self-help books and guided programmes have reasonable evidence, particularly for milder OCD or as a supplement to therapy. Look for resources explicitly based on ERP principles.
Peer support groups
Connecting with others who understand OCD from lived experience can reduce isolation and shame, and is a valuable addition alongside, not instead of, formal treatment.
Family involvement & education
Family members often unknowingly provide reassurance or take part in rituals to reduce a loved one's distress. Educating families to reduce this "accommodation" has good evidence for improving outcomes.
Lifestyle factors
Good sleep, regular exercise, and stress management do not treat OCD directly, but they reduce overall anxiety levels and can make other treatments more effective. Evidence here is modest but consistent with general mental health benefits.
Independent resources
In addition to speaking with us, these independent, trustworthy organisations provide reliable further information about OCD.
NHS: Obsessive Compulsive Disorder (OCD)
Official NHS overview of symptoms, causes, and treatment for OCD
OCD-UK
A UK-based charity run by and for people with OCD, offering information, support, and a directory of specialist therapists
OCD Action
A UK charity providing support and information for anyone affected by OCD, including helplines and support groups
International OCD Foundation (IOCDF)
A leading international non-profit providing evidence-based education and resources on OCD and related disorders
NICE guideline CG31
The UK national clinical guideline on the recognition, assessment and treatment of OCD and body dysmorphic disorder
Not yet been assessed? Read how our assessment process works, or start with our overview of what OCD is.