Can You Overdose on Lexapro? What You Should Know

Last Medical Review On: January 26, 2026
Updated On: January 26, 2026
6 min read
Written by:

Amanda Stevens, B.S.

Medical Review by:

Dr. Faith Coleman M.D.

The risk of fatality increases substantially when Lexapro is combined with alcohol, other antidepressants, opioids, or sedatives
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    What you will learn

    • Lexapro (escitalopram) is an SSRI antidepressant that can cause overdose when taken in excessive amounts or combined with other substances.
    • Lexapro overdose symptoms range from mild effects like nausea and dizziness to serious complications, including seizures and serotonin syndrome.
    • Combining Lexapro with alcohol, other antidepressants, or certain medications significantly increases the risk of dangerous antidepressant overdose.
    • Immediate medical attention is essential if you suspect someone has taken too much Lexapro, especially if severe symptoms are present.
    • Safe medication practices, proper storage, and following prescribed dosages help prevent accidental overdose and ensure effective treatment.

    When you’re taking medication for depression or anxiety, questions about safety naturally arise. If you’ve wondered if you can overdose on escitalopram you’re not alone in seeking this information. Understanding the risks associated with any medication, including antidepressants, helps you use them safely and know when to seek help. This guide addresses your concerns with accurate information about Lexapro overdose, what it’s like, and how to protect yourself or someone you care about.

    What Is Lexapro (Escitalopram)?

    Lexapro is the brand name for escitalopram, an antidepressant belonging to the selective serotonin reuptake inhibitor (SSRI) class [1]. Healthcare providers commonly prescribe Lexapro to treat major depressive disorder, generalized anxiety disorder, and sometimes panic disorder. The medication works by increasing serotonin levels in the brain, a neurotransmitter (chemical messenger) that helps regulate mood, sleep, and emotional well-being.

    Typical therapeutic doses of Lexapro range from 10 mg to 20 mg daily, though some people start at 5 mg and may be titrated to 30 mg depending on their specific needs and response. [2] Healthcare providers carefully determine appropriate dosing based on individual factors, including age, medical conditions, and other medications.

    Can You OD on Lexapro? Understanding the Risk

    Yes, it is possible to overdose on Lexapro. [3] While SSRIs like escitalopram are generally considered safer than older antidepressants, taking excessive amounts can lead to serious health consequences. An overdose occurs when someone takes more than the prescribed or safe amount of medication, whether accidentally or intentionally.

    Several factors increase the risk of Lexapro overdose. Taking significantly more than the prescribed dose, whether by mistake or deliberate action, can overwhelm your body’s ability to process the medication safely [2]. Combining Lexapro with alcohol or other central nervous system depressants (medicines that slow activity in the brain and spinal cord) amplifies risks considerably [4]. Using multiple medications that affect serotonin levels simultaneously can trigger dangerous reactions. Underlying health conditions, particularly liver or kidney problems, may increase vulnerability. Additionally, specific drug interactions with medications like MAO inhibitors, other antidepressants, or even some over-the-counter supplements can create dangerous situations.

    Be aware of any possible side effects or any change in your mental or physical health that may be occurring as a result of taking medication

    What Happens If You Take Too Much Lexapro?: Overdose Symptoms

    Recognizing overdose symptoms helps ensure timely medical intervention. The severity of symptoms typically correlates with the amount taken, the time since ingestion, and whether other substances are involved.

    Mild to moderate lexapro overdose symptoms can include the following:

    • Nausea and vomiting: These are often the earliest indicators of toxicity.
    • Dizziness and lightheadedness: These symptoms can significantly impair balance, making standing or walking difficult.
    • Drowsiness: Extreme sleepiness or lethargy that can progress rapidly.
    • Tremors: Involuntary shakiness, particularly noticeable in the hands.
    • Paradoxical Agitation: Restlessness or heightened anxiety, which is counterintuitive to the medication’s sedative effects.
    • Confusion: Cognitive impairment that creates difficulty concentrating or poor judgment.
    • Cardiovascular Changes: Noticeable rapid heartbeat (tachycardia) or palpitations.
    • Hypotension: Low blood pressure, which may lead to fainting episodes.
    • Diaphoresis: Excessive sweating that is unrelated to environmental temperature.

    The following are serious overdose complications that require immediate emergency care:

    • Seizures: This is one of the most dangerous outcomes and can occur without warning.
    • Cardiac complications: Irregular heartbeat or significant blood pressure fluctuations
    • Altered mental status: This can range from confusion to loss of consciousness, indicating critical complications [1].
    • Respiratory difficulties: Shallow or slow breathing that requires urgent intervention.

    Another serious overdose complication is Serotonin syndrome, a potentially life-threatening condition that develops when serotonin levels become dangerously elevated [5].

    Signs of serotonin syndrome include:

    • High body temperature
    • Severe agitation
    • Increased reflexes
    • Muscle rigidity
    • Tremors
    • Profuse sweating
    • Dilated pupils
    • Diarrhea.

    The risk escalates significantly when Lexapro is combined with other substances. Alcohol, benzodiazepines, opioids, or other medications that depress the central nervous system (CNS, brain and spinal cord) create compounding dangers [4].

    How Dangerous Is Lexapro Overdose?

    The severity of a Lexapro overdose varies considerably based on multiple factors. The amount ingested relative to body weight significantly influences outcomes. The time elapsed since ingestion affects both symptom progression and treatment effectiveness. Whether other substances are involved often determines whether the overdose becomes life-threatening.

    While isolated Lexapro overdoses are less frequently fatal compared to overdoses involving other drug classes, serious complications absolutely can occur. Hospitalization may be necessary for monitoring and supportive care. The risk of fatality increases substantially when Lexapro is combined with alcohol, other antidepressants, opioids, or sedatives [1].

    Prompt medical care significantly improves outcomes. Healthcare providers can administer treatments that help eliminate the medication from your body more quickly, manage dangerous symptoms, and prevent complications.

    Understanding Overdose, Overmedication, and Side Effects

    Clarifying these distinct concepts helps prevent dangerous misconceptions. An overdose means taking an amount that exceeds safe limits, causing toxicity [3]. This differs from experiencing side effects, which are unwanted but typically non-dangerous reactions that may occur even at therapeutic doses. Overmedication can develop when doses are too high for an individual, even if technically within prescribing guidelines.

    Common misconceptions include believing that prescription antidepressants cannot cause overdose simply because they’re legal medications prescribed by doctors. Some people mistakenly think overdose only happens with street drugs or that SSRI risks are negligible. Understanding that any medication carries overdose potential when misused helps promote appropriate caution.

    What to Do If You Suspect a Lexapro Overdose

    Knowing how to respond to a suspected overdose can save a life. If someone exhibits severe symptoms, including unconsciousness or difficulty waking, seizures or convulsions, breathing difficulties, extremely high fever, severe chest pain, or signs of serotonin syndrome (such as agitation, restlessness, rapid heart rate, headache, fever), call 911 immediately [5].

    For mild to moderate symptoms, contact Poison Control at 1-800-222-1222 for immediate guidance. Seek medical assessment even if symptoms seem manageable, as they can worsen rapidly [6]. Monitor vital signs, including breathing, pulse, and level of consciousness, while waiting for help.

    Necessary precautions include never attempting self-treatment for an overdose. Do not induce vomiting unless specifically instructed by medical professionals. Avoid giving the person any other medications, food, or drinks unless directed by emergency personnel. Refrain from leaving them alone, as their condition may deteriorate quickly.

    When calling for help, provide essential information including the medication name and strength, approximately how much was taken and when, any other substances involved, the person’s age and weight, current symptoms, and any known medical conditions.

    Safe Use and Prevention: Protecting Yourself and Others

    To avoid overdose, it’s important to use medications responsibly and by following the instructions given by your healthcare provider. Take the dosage exactly as instructed, without exceeding the prescribed amount. Don’t make any changes to your medication dosage unless you have consulted your healthcare provider first.

    Alcohol should never be taken in combination with Lexapro because taking these two substances together increases the risk of experiencing both overdose and adverse effects, as do prescription medications that depress the CNS, for example, certain pain medications, sleep aids, and anti-anxiety medications. Inform all of your healthcare providers of all medicines, supplements, and natural products you are using, to help eliminate the potential for adverse drug interactions [7].

    All medications should be stored safely in the container in which they were dispensed and should be accessed only by people over the age of 18. Medication should also be kept in a safe and secure location, particularly if you have children or someone in your household has a history of substance abuse. Each time you refill a prescription, check whether any medications have expired or are no longer needed, and dispose of them appropriately.

    Be aware of any possible side effects or any change in your mental or physical health that may be occurring as a result of taking medication. You must maintain regular follow-up appointments with your prescriber. For individuals who have a mental illness or have had a history of substance use, an integrated support system combining therapy and holistic care is extremely beneficial in providing safety and support. [3]

    When to Seek Professional Help

    Above all, emergency medical care should be the top priority in overdose situations; do not wait for symptoms to improve or resolve on their own to take action. If you have repeatedly taken more than what was prescribed or have difficulty with adherence to your medication, then these behaviors may point to an underlying problem that needs the assistance of professionals [6].

    People with combined mental health and substance use issues, known as co-occurring disorders, are often best served by receiving integrated treatment for both disorders. Since both mental health and substance use issues often go hand-in-hand, dual diagnosis treatment offers coordinated care and focuses on helping the client achieve success in recovery from both or multiple disorders.

    Alpas Wellness provides compassionate, evidence-based treatment for individuals who are dealing with complex mental health and substance use problems. Our treatment services offer medical support, therapy, and holistic wellness options to enhance an individual’s overall health. If you or someone you care about needs assistance, reach out for help, as doing so will be the first step towards recovery.

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    Frequently Asked Questions

    01

    Can Lexapro overdose kill you?

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    A lexapro overdose is less common than other drugs, but it can be fatal, especially when combined with other antidepressants, alcohol, benzodiazepines, opioids, or CNS depressants (medications that slow activity in the brain and spinal cord). Serotonin syndrome, seizures, and cardiac events are potentially life-threatening [5]. Therefore, if anyone suspects they have taken too much of any kind of antidepressant, they should seek medical attention immediately.

    02

    What if I accidentally took 40 mg of Lexapro instead of my usual dose?

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    If you realize you have accidentally taken a second dose of medication, call your doctor or Poison Control immediately (1-800-222-1222). While it is possible that a person will not feel any adverse effects from the second dose of medication, it is also likely that some people may experience nausea, sweating, increased heart rate, nervousness, and other unpleasant side effects. Therefore, a doctor needs to assess your specific case and determine whether or not you need emergency medical help. Have someone with you to watch for severe side effects, including seizures, passing out, or trouble breathing; if you experience any of these symptoms, you will need to go to the emergency room for treatment.

    03

    What are the side effects of too much Lexapro compared to the typical side effects?

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    At the beginning of treatment with Lexapro, typical side effects include mild nausea, headache, sleepiness, dry mouth, and loss of appetite [2]. These effects usually decrease after continued use. However, large amounts of Lexapro can cause much worse side effects, such as extreme sleepiness, confusion, shaky hands, fast or uneven heartbeat, extreme agitation, and possibly life-threatening complications such as seizures or serotonin syndrome. Usually, the symptoms from taking too much Lexapro are much stronger than the typical side effects, occur very suddenly, and will continue to get worse.

    04

    How long after taking too much escitalopram will overdose symptoms appear?

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    It can take from 1 to 3 hours for symptoms from taking an overdose of a drug to present, with the actual time that it takes to see symptoms varying not only from person to person, but also from how many milligrams were consumed by the individual. The larger the milligram dosage, the sooner an individual will begin to display symptoms. Whether the user consumed the medication with food will also influence how long it takes for the individual to start showing symptoms from the drug that was ingested. Serotonin syndrome can develop immediately after taking a medication, or may take days to establish if there are at least two different medications that affect serotonin receptors. If you suspect you may have overdosed or have any questions, please contact your healthcare provider.

    05

    Can mixing Lexapro with alcohol cause an overdose?

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    The interaction of alcohol and Lexapro increases the likelihood and danger of an overdose significantly. They both impact the CNS and can have similar effects on the body. In addition to increased risk of overdosing, there is an increased chance of developing serotonin syndrome, worsening psychological symptoms, dangerous reductions in blood pressure, impaired breathing, and extreme sedation when taking these two agents at the same time. Moderate levels of alcohol consumption while taking Lexapro will also increase adverse effects and safety risks. Moreover, using alcohol with Lexapro can cause an overdose-like reaction even without the ingestion of excessive amounts of the drug.

    06

    If someone survives an SSRI overdose, are there long-term effects?

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    Most people who get prompt, appropriate medical care for an overdose of Lexapro recover completely without any long-term effects. However, severe overdoses, particularly those involving seizures, prolonged serotonin syndrome, or significant cardiovascular events, could potentially cause long-term health consequences [7]. In some cases, the psychological trauma from the event may require continued support as well.

    07

    Is accidental antidepressant overdose common?

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    Despite accidental overdose occurring with prescribed antidepressants, more than half of all overdose instances are intentional rather than unintentional. Examples of accidental overdose include: taking multiple doses of an antidepressant close to each other or forgetting you took your last dose earlier in the day, misunderstanding how to take your antidepressant properly (for example, taking too much, or performing incorrect dosing), and young children taking medication due to improper storage. When using a proper pill dispenser and storing medications safely, you can help avoid the occurrence of accidental overdosing.

    08

    What dose of escitalopram is considered dangerous?

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    The recommended dosage for most antidepressants is in the range of 10 to 20 mg per day [3]. A dosage greater than what has been prescribed to you can be potentially harmful. The general view is that dosages greater than 60 to 80 mg of the medication may be considered potentially toxic; however, depending on other factors specific to the individual and any concomitantly used substances, an adverse reaction may occur at doses less than this range. There is no one-size-fits-all “toxic dose” because tolerance development, body weight, metabolism, liver and kidney function, age, and other medications could all affect an individual’s ability to process the antidepressant.

    Sources
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    [01]

    [1] Landy, K., Rosani, A., & Estevez, R. (2023). Escitalopram. StatPearls Publishing. https://www.ncbi.nlm.nih.gov/books/NBK557734/

    [02]

    [2] U.S. Food and Drug Administration. (2023). Lexapro (escitalopram) prescribing information (Revised 10/2023). https://www.accessdata.fda.gov/drugsatfda_docs/label/2024/021365s041lbl.pdf

    [03]

    [3] Jindal, V., & MacDonald, K. (2025). Antidepressants. StatPearls Publishing. https://www.ncbi.nlm.nih.gov/books/NBK538182/

    [04]

    [4] Mayo Clinic Staff. (2024). Antidepressants and alcohol: What’s the concern? Mayo Clinic. https://www.mayoclinic.org/diseases-conditions/depression/expert-answers/antidepressants-and-alcohol/faq-20058231

    [05]

    [5] Mayo Clinic Staff. (2024). Serotonin syndrome – Symptoms & causes. Mayo Clinic. https://www.mayoclinic.org/diseases-conditions/serotonin-syndrome/symptoms-causes/syc-20354758

    [06]

    [6] Sherrill, B., Halmo, L., & Spiller, H. A. (2018). Antidepressant and antipsychotic medication errors reported to United States poison control centers. Clinical Toxicology, 56(6), 507–514. https://pubmed.ncbi.nlm.nih.gov/29740912/

    [07]

    [7] Escitalopram overdose: A case series. (n.d.). Health & Environmental Research Online (HERO), U.S. Environmental Protection Agency. https://hero.epa.gov/hero/index.cfm/reference/details/reference_id/4093078

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