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OCD Guide · and Addiction

OCD and addiction: why do they occur together and how are they treated together?Sedatives and alcohol as an attempt to silence anxiety, the difference between compulsion and addiction, and a dual diagnosis plan

Reviewed by: Dr. Mahmoud El-Sawy Last updated: October 1, 2026 7-minute read
The short answer

The link between obsessive-compulsive disorder (OCD) and addiction is less well known than the link with depression or other anxiety disorders, but it is real: in a treatment sample of 323 patients with OCD, 27% met criteria for a substance use disorder at some point in their lives, and OCD came at least a year before substance use in 70% of them. Some patients turn to alcohol or sedatives to quiet the anxiety, and these become a new burden. The solution is integrated treatment for both problems together.

  • Sedatives are not a treatment for OCD, and guidelines warn against them except for very short periods.
  • Substance use undermines exposure and response prevention because it switches off the anxiety the brain learns from.
  • Tell your doctor honestly about any substance use, because it changes the whole plan.

How common is addiction among people with OCD?

“I felt like the only pill that could quiet my brain at night was the sedative. At first it was one, and after a year I couldn't sleep without it, and the OCD was exactly the same.” This story repeats among people with OCD more than many realize.

In the large US national survey known as the NCS-R, researchers found that OCD is linked to high rates of co-occurring disorders, not only anxiety and depression but also substance use disorders. In a treatment sample of 323 patients, whose results were published in the Journal of Anxiety Disorders in 2009, 27% met criteria for a substance use disorder at some point in their lives.

27%of the people with OCD in a treatment sample had a substance use disorder during their lifetime
70%of them had OCD begin at least a year before substance use
35%of US adults with mental disorders have a substance use disorder (NIDA)

An important observation in the same study is that OCD came at least a year before substance use in 70% of those who had both problems, and that early-onset OCD and borderline personality disorder were linked to a higher risk. This supports the idea that many people start using substances in an attempt to cope with OCD.

Why do people with OCD turn to alcohol or sedatives?

A person with OCD lives through hours of anxiety and rituals, then discovers that a certain substance eases the tension quickly. The US National Institute on Drug Abuse (NIDA) notes that mental disorders and substance use disorders share risk factors, and that some people use substances to relieve their symptoms. With OCD, certain patterns recur:

  • Numbing thoughts at night: alcohol or a sedative to stop the mental reviewing and get to sleep.
  • Getting through frightening situations: a sedative before going out, shaking hands or going to work.
  • Escaping after a day of rituals: hashish or alcohol to “switch off” from the exhaustion.
  • Co-occurring depression: when OCD goes untreated for long, sadness follows, and the pull toward substance use grows.

Which substances are most linked to OCD?

Common substances and their effect on a person with OCD
SubstanceWhy some people turn to themWhat happens over time
Sedatives (benzodiazepines)Fast calming of anxiety and insomniaTolerance, dependence and difficult withdrawal, while the OCD itself does not improve
AlcoholForgetting thoughts and sleepingDeepens depression, disrupts real sleep and weakens commitment to treatment
HashishRelaxation and escape from tensionMay increase anxiety and doubt in some people, and weakens concentration in therapy sessions
PregabalinCalming anxiety without a prescriptionMisuse and dependence, especially with doses outside medical supervision
Stimulants such as shabu and CaptagonTemporary energy and focusWorse insomnia, anxiety and tension, and they may trigger psychotic symptoms

This table does not mean every person with OCD will use substances. It means that paying attention early to any growing use protects against a second problem on top of the first.

Are sedatives a treatment for OCD?

No. The British NICE guidelines recommend against using anti-anxiety medications to treat OCD, except with caution and for short periods to relieve the tension that accompanies the start of antidepressants. The main treatment is exposure and response prevention, with a selective serotonin reuptake inhibitor (SSRI) medication when needed.

And the problem runs deeper: the core of treatment is that the patient faces what they fear and tolerates the anxiety until it settles on its own, so the brain learns that the danger is not real. A sedative or alcohol switches the anxiety off artificially, acting as a new ritual that blocks this learning. So do not start or stop any medication without a doctor, and tell them honestly if you are using a sedative without a prescription.

What is the difference between a compulsion and an addiction?

People sometimes confuse the two words because both are repetition that is hard to stop. But the motive is different, and that changes the treatment:

Compulsion compared with addictive behavior
Point of comparisonCompulsion in OCDAddictive behavior
Initial motiveGetting rid of fear or distress caused by an intrusive thoughtOften seeking pleasure or a high, then escaping withdrawal
Feeling during itNo pleasure, just temporary relief from anxietyPleasure at first that fades with tolerance
The person's attitude toward itOften sees it as illogical and wishes to stopMay justify it or downplay its risk
Main treatmentExposure and response preventionSafe withdrawal, then psychotherapy, rehabilitation and relapse prevention
Infographic: Compulsion or addiction? The initial motive, the feeling during it, the person's attitude toward it, the main treatment
A comparison of a compulsion in OCD and addictive behavior in terms of motive, feeling and treatment.

When the two come together, the sedative or alcohol itself becomes part of the OCD cycle: anxiety, then a substance, then brief relief, then worse anxiety.

How are OCD and addiction treated together?

The foundation is dual diagnosis: one team that sees both problems together, instead of each doctor treating a separate part. The plan usually goes through these stages:

  1. 1
    Comprehensive assessment

    Determining the severity of the OCD, the type and amount of substances, and the presence of depression or suicidal thoughts.

  2. 2
    Safe withdrawal

    When there is dependence on alcohol or sedatives, stopping is done under medical supervision, because sudden withdrawal from them can be dangerous.

  3. 3
    OCD treatment

    Starting exposure and response prevention once the patient is stable, with medication set by the doctor.

  4. 4
    Replacement skills

    Learning to deal with anxiety without a substance, through cognitive behavioral therapy and support groups.

  5. 5
    Relapse prevention

    A plan for high-risk situations, regular follow-up, and involving the family.

You can find the details of the withdrawal stage in the detox program, and the details of OCD treatment itself in OCD treatment.

Signs that call for the family's attention

  • Increasing use of a sedative, or asking for it from more than one doctor or pharmacy.
  • Drinking or using before facing OCD situations or before sleep every night.
  • Irritability, insomnia or tremor when the substance runs out.
  • Neglecting therapy sessions or the prescribed medication.
  • Growing depression or talk of hopelessness.

At Eradah we offer a free, confidential first consultation and a dual diagnosis program that combines addiction and OCD treatment in one plan, with residential treatment for men when withdrawal under medical supervision is needed.

Severe despair or suicidal thoughts because of OCD? Get help now

  • Talking about death or saying that life with OCD is “unbearable”
  • Giving up eating, sleeping or going out altogether because of rituals or fear
  • Severe skin wounds or infections from washing or disinfectants
  • Hurting or punishing oneself because of thoughts they did not choose
  • Saying goodbye to family, or a sudden strange calm after intense suffering

Stay with the person and listen calmly without blame or mockery, and reassure them that what they are going through is a treatable illness. Keep medications and dangerous objects out of their reach. Call an ambulance (123) or go to the nearest emergency room if the danger is imminent, and contact the mental health support line (16328), available around the clock.

Ambulance 123 Mental health support line 16328
Frequently asked questions

Frequently asked questions about OCD and addiction

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Is there a link between OCD and addiction?

Yes. In a treatment sample of 323 patients with OCD, 27% met criteria for a substance use disorder in their lifetime, and OCD began before substance use in 70% of them.

Does OCD cause addiction?

Not directly, but severe anxiety and exhausting rituals can push some patients toward alcohol or sedatives to ease the tension, and that turns into dependence.

Do sedatives treat OCD?

No. NICE recommends against using anti-anxiety medications to treat OCD except with caution and for short periods, and the main treatment is exposure and response prevention with medication set by the doctor.

What is the difference between OCD and addiction?

A compulsion aims to get rid of fear caused by an intrusive thought and brings no pleasure, whereas addiction often begins with seeking pleasure and then becomes an escape from withdrawal.

Does hashish make OCD worse?

It may increase anxiety and doubt in some people and weakens concentration in treatment. It is not a treatment for OCD, and it is best to discuss any use with your doctor.

How are OCD and addiction treated together?

With integrated dual treatment that starts with a comprehensive assessment and safe withdrawal when needed, then OCD treatment with exposure and response prevention, along with alternative coping skills and relapse prevention.

Can sedatives be stopped suddenly?

This is not advised when there is dependence on them, because sudden withdrawal can be dangerous, and stopping is done under medical supervision.

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