Obsessive-Compulsive Disorder (OCD) and Addiction: Treatment, Signs, and Symptoms

Understanding Obsessive Compulsive Disorder (OCD)

OCD is a mental health condition that causes obsessions, or repetitive unwanted thoughts, and compulsions, or irrational, uncontrollable urges to fulfill the obsessions. Obsessions may include upsetting thoughts or images or a preoccupation with something, such as whether you left the oven on or locked a door.[1]

Compulsions are repetitive actions that you feel you have to do, either to suppress obsessions or to follow a self-imposed rule.[2] This is often done to reduce anxiety or prevent an unwanted situation, even if the action isn’t linked to the unwanted situation. A compulsion may be excessive hand-washing or repeated mental acts like counting.

For people with OCD, obsessions and compulsions can be time-consuming and distressing, often taking an exorbitant amount of time and disrupting day-to-day life. Though the specific obsessions and compulsions can vary, the signs of OCD may include: [3]

• Fear of losing something or forgetting something
• Fear of germs
• Repetitive thoughts of aggression or violence toward oneself or others
• A strong desire to have objects in a specific order or symmetrical
• Excessive hand-washing or cleaning
• Excessive checking, such as whether the door is locked or the oven is off
• Obsessive counting
• Repetition of words

Why OCD and Addiction Can Overlap

OCD and addiction have similar mechanisms that can cause them to co-occur. Though the research findings vary on how often OCD co-occurs with substance use disorder, they share some commonalities. Both OCD and addiction involve dysregulation of the brain’s reward system and neurotransmitter pathways, especially involving dopamine, serotonin, and glutamate.[4]

With OCD, people may experience intrusive thoughts of obsessions that can lead to repetitive behaviors or compulsions intended to reduce stress or prevent unwanted situations. Drug addiction also involves compulsive drug seeking and use despite negative consequences, fueled by cravings and an inability to control use.

Some research indicates that people with OCD may be more vulnerable to addiction and may rely on substances to self-medicate anxiety or distress caused by obsessive thoughts.[5] This is counterproductive, however, as substance use can worsen OCD symptoms or trigger compulsive behaviors.

The complex relationship between OCD and addiction requires specialized treatment that addresses both the mental health disorder and the substance use simultaneously, as well as addressing how these two conditions influence one another.

How Substance Use Worsens OCD Symptoms

Some people with OCD turn to substances at first as a way to help their OCD symptoms; to block out obsessive thinking, calm down or alleviate anxiety, or try to stop the urge to perform a compulsion.

And while drugs or alcohol may be a temporary fix from the anxiety of symptoms, that relief is often what makes the underlying OCD cycle harder for someone to break.

OCD involves anxiety followed by a certain behavior that reduces that anxiety in the short term. Adding substances to the cycle only makes them part of the same pattern. Over time, what starts as a coping mechanism becomes a habit. The brain begins associating relief from discomfort with the drug or alcohol, which can actually worsen the underlying OCD symptoms. And the longer you continue to rely on these “coping” strategies, the harder it becomes to break both the OCD symptoms and the substance use patterns.

Substance use can also interfere with the stability that OCD treatment often requires. It may worsen anxiety, disrupt sleep, increase impulsive behavior, reduce follow-through with therapy skills, or make it harder to resist compulsions. For someone already dealing with intrusive thoughts and distress, this can create a cycle where OCD symptoms fuel substance use, and substance use makes OCD symptoms feel more difficult to control.

Factors That Can Connect OCD and Addiction

There are many possible reasons why OCD and addiction may co-occur, including:

• Genetics: OCD and addiction share some common traits and that OCD genetic component means that the disorder can run in families.[6]
• Trauma: According to one study, about 60% of participants experienced a traumatic life event before their OCD symptoms started.[7] Trauma is also a risk factor for addiction.
• Impulsivity: According to one study, people with OCD were more impulsive than those without OCD, which is also a factor in substance abuse.[8]

Treatment Options for OCD and Addiction

If you’re struggling with both OCD and substance abuse or OCD and alcohol abuse, simultaneous treatment is necessary to improve treatment outcomes. It’s important to have addiction and OCD interventions that are tailored to your symptoms and treatment goals.

In addition to traditional therapies like support groups and family therapy, some of the possible evidence-based interventions for OCD and addiction include:

• Cognitive behavioral therapy (CBT): Among cognitive behavioral therapies for OCD, exposure and response prevention is the first-line treatment, and ERP therapy is effective for many people with OCD. Cognitive Behavioral Therapy has also been validated in over 30 studies.
• Exposure therapy: In OCD care, exposure and response prevention gradually brings up feared thoughts or situations while response prevention helps you resist compulsions, which can reduce OCD symptoms and reduce symptoms over time.
• Holistic therapies: Holistic therapies offer an integrative approach to individualized treatment of OCD and addiction, encompassing the mind, body, emotions, and spirit to promote healing and wellness.
• Medication-assisted treatment (MAT): As part of medication treatment for OCD, selective serotonin reuptake inhibitors are the first line treatment and first-line pharmacotherapy, though higher doses than for depression are often needed and an adequate trial is usually 10 to 12 weeks. About half of people with OCD who take an SRI medication respond with meaningful symptom reduction and symptom relief. Clomipramine, a tricyclic antidepressant, is another SRI medication with evidence dating back to the 1960s.
• Psychodrama: Blending interaction with psychotherapy guided by a mental health professional, psychodrama helps you gain an understanding of yourself and how you developed certain behaviors to consciously change them.
• Eye movement desensitization and reprocessing (EMDR): EMDR is a trauma-focused psychotherapy that uses specific techniques to help you process traumatic experiences and reduce the emotional impact and distress associated with them.

A combined treatment approach using ERP and medication often works better than either alone and can be part of an individualized OCD treatment plan and broader treatment plan.

In treatment resistant patients, other medications such as antipsychotic medications may be used to augment standard care.

Why Integrated Treatment Matters

OCD and addiction can affect each other during treatment. If substance use is not addressed, it may continue to interfere with sleep, anxiety, routines, and the ability to practice coping skills, making it harder to manage symptoms when both conditions interact. If OCD symptoms are not addressed, obsessive thoughts and compulsive patterns may continue to create distress that increases the urge to use substances.

Integrated care helps treatment teams look at the full picture. Instead of treating substance use and OCD as separate problems, dual diagnosis treatment often uses an individualized treatment plan that considers how intrusive thoughts, compulsions, cravings, avoidance, anxiety, and relapse risk may be connected rather than handling them in isolation. This can help people build coping skills that support both OCD management and addiction recovery.

Seek Help for OCD and Addiction

OCD and addiction can co-occur for several reasons, including the desire to self-medicate the compulsions and obsessions and relieve distress. If you or a loved one is struggling with OCD and addiction, an accurate diagnosis and OCD diagnosis from a mental health professional or primary care provider can help guide effective treatment for both conditions, and dual-diagnosis treatment options offer help through integrative care that addresses both conditions.