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  • What Is Lexapro?What Is Lexapro?
  • How it WorksHow it Works
  • Is it Effective?Is it Effective?
  • Benefits & RisksBenefits & Risks
  • OCD-Related DisordersOCD-Related Disorders
  • Side EffectsSide Effects
  • DosageDosage
  • How to GetHow to Get
  • Alternatives for OCDAlternatives for OCD
  • Therapy OptionsTherapy Options
  • Lexapro for OCD FAQsLexapro for OCD FAQs
  • Questions to AskQuestions to Ask
  • In My ExperienceIn My Experience
  • Additional ResourcesAdditional Resources

Lexapro for OCD: Everything You Need to Know

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Author: Luke Prest, MD

Luke Prest, MD headshot

Luke Prest MD

Dr. Luke Prest is an accomplished pediatric pediatrician and expert in child and adolescent development and behavior. His areas of expertise include adolescent ADHD, depression, and anxiety, and preventative mental health care.

See My Bio Editorial Policy
Headshot of Heidi Moawad, MD

Medical Reviewer: Heidi Moawad, MD Licensed medical reviewer

Headshot of Heidi Moawad, MD

Heidi Moawad MD

Heidi Moawad, MD is a neurologist with 20+ years of experience focusing on
mental health disorders, behavioral health issues, neurological disease, migraines, pain, stroke, cognitive impairment, multiple sclerosis, and more.

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Published: October 10, 2023
  • What Is Lexapro?What Is Lexapro?
  • How it WorksHow it Works
  • Is it Effective?Is it Effective?
  • Benefits & RisksBenefits & Risks
  • OCD-Related DisordersOCD-Related Disorders
  • Side EffectsSide Effects
  • DosageDosage
  • How to GetHow to Get
  • Alternatives for OCDAlternatives for OCD
  • Therapy OptionsTherapy Options
  • Lexapro for OCD FAQsLexapro for OCD FAQs
  • Questions to AskQuestions to Ask
  • In My ExperienceIn My Experience
  • Additional ResourcesAdditional Resources
Brand name:
Lexapro
Generic name:
Escitalopram
Is the generic available:
Yes
Class of drug:
SSRI
Boxed warning:
Yes
FDA-approved treatments:
Major Depression, Generalized Anxiety Disorder
Common Off-label Uses (non-FDA approved):
OCD, PTSD, Premenstrual Dysphoric Disorder (PMDD), Panic Disorder, Bulimia Nervosa, Binge Eating Disorder
Common alternatives:

Zoloft, Paxil, Prozac

View Drug Class, FDA-Approved Uses, Off-Label Uses, and more

*An off-label use of a medication is a use that is not FDA-approved. Prescribers can decide to use a medication off-label because, in their professional judgment, they believe it may offer a benefit to someone.

Lexapro (escitalopram) can be an effective treatment for obsessive-compulsive disorder (OCD). It is a selective serotonin reuptake inhibitor (SSRI) and can help alleviate obsessive thoughts and compulsive behaviors. However, its effect varies from person to person, and it may take several weeks to notice improvement in these symptoms.

If you’re considering Lexapro as treatment for OCD, online psychiatry platforms such as Talkiatry and Brightside Health can connect you with a provider quickly. They offer assessments and can provide a prescription if they determine Lexapro or another medication may help your symptoms.

Boxed Warning: Escitalopram (Lexapro) - Risk of suicidal thoughts and behaviors in certain people

Click here to open and close the box warning container.

Escitalopram, the active ingredient in Lexapro, has a black box warning. These are the most serious types of warnings from the Food and Drug Administration (FDA). Escitalopram can increase the risk of suicidal thoughts and behaviors in children, adolescents, and young adults. Regardless of your age, you should talk with your doctor about serious risks with escitalopram and any other medications before starting treatment.

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What Is Lexapro (Escitalopram)?

Lexapro (escitalopram) is a medication used in the treatment of many mood disorders, including depression and generalized anxiety disorder. It is a selective serotonin reuptake inhibitor (SSRI) that works by increasing serotonin in the brain. 1

Serotonin is involved in mood regulation, and increased serotonin in the brain can help alleviate symptoms of anxiety and depression. Lexapro is FDA-approved for the treatment of major depressive disorder in those aged 12 years and older. It is also FDA-approved for treating generalized anxiety disorder in those 7 years and older.2

How Does Lexapro for OCD Work?

Lexapro, while not FDA-approved specifically for the treatment of OCD, is sometimes prescribed off-label for this condition. “Off-label” means that the medication is being used for a condition not approved by the FDA. A healthcare provider may prescribe a medication for off-label use if they believe it may benefit someone.

Lexapro is often used for OCD due to its function as a selective serotonin reuptake inhibitor, which can help increase and regulate serotonin levels in the brain. Since serotonin plays a role in mood and anxiety regulation, increasing levels of serotonin may reduce the severity of obsessive thoughts and compulsive behaviors in some individuals with OCD.

How Long Does it Take for Lexapro to Work on OCD?

The time it takes for Lexapro to take effect varies from person to person. However, in most individuals, the effect can take several weeks. Most individuals can begin to notice improvements after 2-4 weeks of treatment, while others may take up to 6-8 weeks.3 Because the effects are not immediately noticed, you might want to stop taking it, but it’s important to give it time.

Is Lexapro an Effective Treatment for OCD?

Lexapro can be an effective treatment for OCD in some individuals. Studies have shown that SSRIs can help reduce the symptoms of OCD by increasing serotonin in the brain. Studies looking specifically at Lexapro have shown that it can improve functioning and reduce OCD symptoms in some individuals.4, 5

Other studies have demonstrated that Lexapro can decrease the risk of relapse of OCD symptoms compared to a placebo.6 These studies have also shown that Lexapro is typically well-tolerated with minimal side effects.

Is Lexapro the Best SSRI for OCD?

There are many SSRIs available on the market for the treatment of OCD. Some SSRIs, such as fluoxetine and sertraline, are FDA-approved for treating OCD. However, this does not necessarily mean these SSRIs will be more effective than Lexapro. Which SSRI works best varies from person to person and depends on several factors, including the person’s health history, potential side effects, and individual responses to medications.

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Benefits & Risks of Lexapro for OCD

Lexapro offers many potential benefits as OCD treatment by reducing obsessive thoughts and compulsive behaviors in some individuals. These improvements can lead to a significantly improved quality of life and better daily functioning. However, there are potential risks and side effects associated with Lexapro. These side effects include nausea, insomnia, sexual dysfunction, and more.

Additionally, not everyone responds the same way to Lexapro, and it may take several weeks to see improvement in symptoms. Lexapro can also cause withdrawal symptoms if the medication is stopped abruptly. The decision to use Lexapro for OCD should be made in consultation with a healthcare provider to weigh these benefits and risks.

Lexapro and OCD-Related Disorders

Lexapro can be beneficial in cases where individuals with OCD also experience other conditions, such as depression or anxiety. Lexapro is an SSRI and helps regulate serotonin in the brain, which plays a major role in mood regulation. Anxiety and depression commonly co-occur in individuals with OCD. By addressing depression and anxiety symptoms, Lexapro can provide a comprehensive treatment for individuals with OCD. By improving overall mood and reducing anxiety, it can indirectly help with managing distress and impairment caused by OCD.

Side Effects of Lexapro for OCD

Although Lexapro is generally well-tolerated, it can cause side effects in many individuals. These side effects are often due to the medication’s impact on the brain’s and body’s serotonin levels. Many side effects are mild and resolve over time as the body adjusts to the medication.

Some side effects, however, can be severe or persistent, requiring adjustments in the dose of the medication or discontinuation of the medication altogether. Keeping your healthcare provider informed of all potential side effects you are experiencing is important to ensure the safe and effective use of Lexapro.

Common side effects of Lexapro include*:1, 3

  • Dry mouth
  • Nausea
  • Diarrhea
  • Constipation
  • Decreased appetite
  • Insomnia
  • Drowsiness
  • Decreased libido
  • Delayed ejaculation

*All medications, including Lexapro, can cause side effects which can be mild or serious. This is not a comprehensive list of all possible side effects. You should talk with your doctor about any questions you have and to understand the potential side effects and benefits of any medication.

Serious side effects of Lexapro that require immediate medical attention include*:1, 7

  • Hallucinations
  • Difficulty breathing or swallowing
  • Swelling of the face, tongue, or throat
  • Problems with thinking or concentrating
  • Seizures

*All medications, including Lexapro, can cause side effects which can be mild or serious. This is not a comprehensive list of all possible side effects. You should talk with your doctor about any questions you have and to understand the potential side effects and benefits of any medication.

Although Lexapro is typically well-tolerated, it is important to be aware of these potentially severe side effects. If severe side effects occur, it is necessary to seek immediate medical attention to lower the risk of serious long-term complications.

Lexapro for OCD Dosage

The dosage of Lexapro for treating OCD is determined by several factors that a prescriber must take into consideration. These factors include the person’s age, overall health, and response to the medication. Prescribers will most often start an individual on the lowest dose and gradually increase the dosage based on the individual’s response. Some studies have indicated that higher-dose Lexapro may be best for the treatment of OCD.4

How to Get a Prescription for Lexapro for OCD

When considering a medication such as Lexapro for the treatment of OCD, it is necessary first to have a comprehensive evaluation by a qualified healthcare provider. During this process, the healthcare provider will assess the severity of symptoms and coexisting conditions to determine the best treatment plan. While this can be done at an in-person visit, one option is working with an online psychiatry service. These services provide remote access to licensed psychiatrists and therapists who can assess, diagnose, and prescribe medications via a virtual consultation.

Alternative Medications for OCD

Lexapro is just one option for the treatment of OCD, but there are many other medications to consider. SSRI medications, such as Lexapro, are often the first medications to try when treating OCD. However, if SSRIs do not work for an individual, there are many other medications to try.

Alternative medications for OCD include:7

  • Other SSRIs: Other SSRIs have been shown to be effective in treating OCD. These include citalopram, fluoxetine, fluvoxamine, paroxetine, and sertraline.
  • Clomipramine: Clomipramine is a tricyclic antidepressant that works similarly to SSRIs and was the first drug used to treat OCD.
  • Serotonin-norepinephrine reuptake inhibitors (SNRIs): SNRIs have been shown to be similarly effective in treating OCD and are often more tolerable than clomipramine. SNRIs include venlafaxine and duloxetine.
  • Other antidepressants: Other antidepressant medications may help with OCD symptoms but require more study. This includes agomelatine and mirtazapine.

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Therapy Options for OCD

Lexapro can be most effective in managing OCD symptoms when used in conjunction with therapy. The most common therapy approach for OCD is cognitive behavioral therapy (CBT). CBT for OCD involves identifying and modifying thought patterns and behaviors associated with OCD. Therapists help individuals understand their obsessions and compulsions and teach them strategies to challenge and change these patterns.

Cognitive behavioral therapy for OCD includes:

  • Psychoeducation: Before treatment, the therapist will educate the individual about OCD and explain how CBT will be helpful for treatment. This is an important part of treatment as it can help motivate the patient and prevent distress during the treatment process.
  • Exposure response prevention therapy (ERP): ERP focuses on gradually exposing individuals to their obsessions or triggers while preventing the usual compulsive responses. This might occur in the form of repeated exposure to feared low-risk situations or through the imagined confrontation of these situations. This can help individuals learn to respond to obsessive thoughts and feared situations in a healthy way.
  • Cognitive therapy: Cognitive therapy involves addressing inaccurate beliefs about obsessive thoughts and compulsion, helping patients address and change these beliefs.

FAQs About Using Lexapro for OCD

It is common for individuals to have questions and concerns when starting a new medication, such as Lexapro. Below are a few frequently asked questions and answers when treating OCD with Lexapro.

Is Lexapro Effective for OCD Symptoms?

The effectiveness of treating OCD symptoms varies from person to person. In one study, the risk of recurrence of symptoms decreased from 52% in the placebo group to 23% in those treated with Lexapro.6 Another study demonstrated that Lexapro at a higher dose led to significant improvements in all aspects of OCD functioning.5

Does Lexapro Stop Obsessive Thoughts?

While Lexapro may not stop obsessive thoughts completely, it can help reduce obsessive thoughts in individuals with OCD by decreasing the intensity and frequency of these thoughts.

Is Zoloft or Lexapro Better for OCD?

Zoloft (sertraline) is another SSRI medication commonly prescribed for the treatment of OCD. Both Zoloft and Lexapro are similarly effective in the treatment of OCD. The choice between them depends on how a person responds to the medication and any potential side effects.

Questions to Ask Your Healthcare Provider About Lexapro (Fluoxetine) for OCD

If you are considering using Lexapro for conditions such as OCD, it is essential to discuss this with your doctor, psychiatrist, and therapist. You may want to ask about how Lexapro works, its potential risks and benefits, and what to expect when you start taking the medication.

Questions to ask your care team when considering the side effects of Lexapro may include:

  • Can I use Lexapro along with therapy to treat OCD?
  • How long will it take for me to adjust to taking Lexapro?
  • Am I at risk for more severe symptoms if I am already taking other psychotropic medications?
  • What is the best dosage to ensure fewer side effects?
  • Are there drugs I am taking that could have negative interactions?
  • When should I reach out to you if I am experiencing side effects?
  • Is there anything I should tell my therapist about this new medication?
  • Are there any lifestyle or dietary considerations that may impact the effectiveness of Lexapro?
  • What alternatives are there for the treatment of OCD?
  • Is there a different medication that may work best based on my history?
  • Can you provide resources or additional information to help me better understand Lexapro and OCD?

In My Experience

In my experience, Lexapro is a well-tolerated medication that offers many benefits. I see patients taking Lexapro for anxiety, depression, and OCD. I have seen firsthand the beneficial impact it has had on their quality of life. The patients seeking help for these problems are always happy that they did, and the most significant benefit often comes when using medication with therapy.

Luke Prest, MD headshot Luke Prest, MD

Sources

ChoosingTherapy.com strives to provide our readers with mental health content that is accurate and actionable. We have high standards for what can be cited within our articles. Acceptable sources include government agencies, universities and colleges, scholarly journals, industry and professional associations, and other high-integrity sources of mental health journalism. Learn more by reviewing our full editorial policy.

  • Drugs@FDA: FDA-Approved Drugs. (n.d.). FDA. Retrieved from https://www.accessdata.fda.gov/drugsatfda_docs/label/2023/021323

  • DailyMed – LEXAPRO- escitalopram tablet, film coated LEXAPRO- escitalopram solution. (n.d.). Retrieved from https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm

  • Stahl S. M. & Grady M. M. (2017). Stahl’s essential psychopharmacology: prescriber’s guide (Sixth). Cambridge University Press.

  • Rabinowitz, I., Baruch, Y., & Barak, Y. (2008, January 1). High-dose escitalopram for the treatment of obsessive–compulsive disorder. International Clinical Psychopharmacology; Wolters Kluwer. Retrieved from https://doi.org/10.1097/yic.0b013e3282f0f0c5

  • Stein, D. J., Andersen, E. W., Tonnoir, B., & Fineberg, N. (2007, March 5). Escitalopram in obsessive–compulsive disorder: a randomized, placebo-controlled, paroxetine-referenced, fixed-dose, 24-week study. Current Medical Research and Opinion; Informa. Retrieved from https://doi.org/10.1185/030079907×178838

  • Fineberg, N., Tonnoir, B., Lemming, O., & Stein, D. J. (2007, May 1). Escitalopram prevents relapse of obsessive-compulsive disorder. European Neuropsychopharmacology; Elsevier BV. Retrieved from https://doi.org/10.1016/j.euroneuro.2006.11.005

  • Escitalopram: MedlinePlus Drug Information. (n.d.). Retrieved from https://medlineplus.gov/druginfo/meds/a603005.html

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