Escitalopram is one of the most commonly prescribed antidepressants for depression and anxiety. It’s usually taken once a day and is often well tolerated, which makes it a frequent first choice. If you’re starting escitalopram or considering it, this guide explains what it treats, common Lexapro side effects, how long it takes to work, how it compares with sertraline on weight, and how to stop it safely.
What Is Escitalopram Used For?
Escitalopram is an SSRI, or selective serotonin reuptake inhibitor, used mainly for major depression and generalized anxiety disorder, and sometimes for other anxiety conditions. It increases the availability of serotonin in the brain, which can improve mood, worry, and related symptoms over several weeks.
It has solid evidence behind it. A large network meta-analysis of 21 antidepressants found that all studied antidepressants, including escitalopram, were more effective than placebo for adults with major depression. Our guide to SSRIs vs SNRIs explains how it fits among the options.
| Feature | Escitalopram |
|---|---|
| Class | SSRI |
| Common uses | Depression, generalized anxiety disorder |
| Dosing | Usually once daily |
| Time to benefit | Often 4 to 8 weeks for fuller effect |
| Stopping | Taper gradually with guidance |
Common Lexapro Side Effects
Common Lexapro side effects include nausea, headache, sleep changes, sweating, fatigue, and sexual side effects, and many of the early ones ease within a few weeks. Taking it with food can help nausea, and adjusting the time of day can help with sleep or drowsiness.
- Nausea: often early and temporary.
- Sleep changes: insomnia or daytime drowsiness.
- Sexual side effects: lower desire or delayed orgasm, which can often be managed.
- Emotional blunting: feeling flat, which is worth reporting.
Our guide to antidepressant side effects explains what can be adjusted.
Escitalopram can interact with other medications that affect serotonin, some blood thinners, and certain pain relievers, and it can affect heart rhythm at high doses in some people. Sharing your full medication list and any heart history helps your psychiatrist choose a safe dose.
Escitalopram is simple to take and often well tolerated. The first few weeks are about patience and good follow-up.
How Long Does Escitalopram Take to Work?
Escitalopram usually takes about 2 to 4 weeks to start helping and 4 to 8 weeks for fuller benefit, although sleep or anxiety may ease a little sooner. Your psychiatrist may start at a lower dose and adjust based on response and side effects. If symptoms haven’t improved enough after an adequate trial, a dose change or different approach may help.
Some people notice slightly more anxiety in the first days. This usually settles, especially with a low starting dose. Our timeline of how long antidepressants take to work explains what to expect week by week.
- Start low. Begin at a low dose to limit early side effects.
- Take it daily. Take it at the same time each day.
- Give it time. Expect gradual benefit over 4 to 8 weeks.
- Track symptoms. Note mood, anxiety, sleep, and side effects.
- Follow up. Review progress and adjust with your psychiatrist.
Many people find the first two weeks the hardest, as side effects appear before benefits. Keeping a simple daily log of mood, sleep, and side effects makes follow-up visits more productive and helps you notice early improvement that’s easy to miss.
Starting or reviewing escitalopram?
A medication review can help. By telehealth across South Carolina and New York.
Escitalopram and Weight Gain
Escitalopram and weight gain is a common question. In a large 2024 study of more than 183,000 adults, escitalopram was linked to slightly more weight gain than sertraline. As summarized by Harvard Health Publishing, average gain at two years was about 3.6 pounds with escitalopram and 3.2 pounds with sertraline, and a Psychiatric News report noted a 10% to 15% higher chance of gaining at least 5% of baseline weight with escitalopram, paroxetine, or duloxetine compared with sertraline.
Average weight gain two years after starting each antidepressant.
These differences are small on average, and individual responses vary widely. If weight is a concern, tracking it from the start and discussing changes early helps. Our guide to antidepressants and weight gain covers options.
Difference in average weight change versus sertraline at six months.
Escitalopram vs Sertraline
Escitalopram vs sertraline is a common comparison: both are SSRIs with good evidence for depression and anxiety, and the choice often comes down to side effect profile, past response, other conditions, interactions, and practical factors. Sertraline has more data during breastfeeding and was linked to slightly less weight gain in the 2024 study; escitalopram is often simple to dose and well tolerated.
Our guides to sertraline and medication while breastfeeding explain those details.
Past response is one of the most useful guides. If escitalopram or sertraline helped you or a close family member before, that can point toward a good starting choice. If one didn’t work, switching to another SSRI or a different class is a common next step.
Starting an SSRI
Questions about side effects, timing, weight, and how escitalopram compares.
A clear, supported start
A low starting dose, a plan for side effects, and regular follow-up.
Steady improvement
Mood and anxiety easing over weeks, with adjustments as needed.
Dr. Gabriella Farkas, MD PhD
Board-certified adult psychiatrist with a PhD in neuroscience and pharmaceutical research experience. Dr. Farkas starts and adjusts SSRIs carefully with each patient.
About Dr. Farkas →Stopping Escitalopram Safely
Stopping escitalopram safely means tapering gradually with your psychiatrist, because stopping suddenly can cause discontinuation symptoms such as dizziness, irritability, flu-like feelings, or trouble sleeping. The pace depends on your dose and how long you’ve taken it.
Our guide to tapering psychiatric medication safely explains the process. A comprehensive medication review can help decide whether escitalopram is right for you or whether a change makes sense. If you’re having thoughts of suicide, call or text 988 in the US.
Key Terms
- Escitalopram
- An SSRI antidepressant sold as Lexapro.
- SSRI
- Selective serotonin reuptake inhibitor, a class of antidepressants.
- Discontinuation symptoms
- Temporary symptoms when an antidepressant is reduced or stopped too quickly.
- Generalized anxiety disorder
- Excessive, hard-to-control worry most days for at least six months.
Common Questions About Escitalopram
What is escitalopram used for?
Escitalopram is used mainly for major depression and generalized anxiety disorder, and sometimes for other anxiety conditions. It's an SSRI. It's usually taken once a day. It's often well tolerated. Your psychiatrist can explain whether it fits you. Your psychiatrist can guide you. Regular follow-up helps. Plans can be adjusted.
What are common Lexapro side effects?
Common Lexapro side effects include nausea, headache, sleep changes, sweating, fatigue, and sexual side effects, and many early ones fade within weeks. Taking it with food can help. Dose timing can help sleep. Report persistent side effects. Many can be managed. Your psychiatrist can guide you. Regular follow-up helps. Plans can be adjusted.
How long does escitalopram take to work?
Escitalopram often starts helping within 2 to 4 weeks, with fuller benefit over 4 to 8 weeks, though sleep or anxiety may improve a little earlier. Doses are adjusted gradually. Patience matters. Track your symptoms. Follow up with your psychiatrist. Your psychiatrist can guide you. Regular follow-up helps. Plans can be adjusted.
Does escitalopram cause weight gain?
Escitalopram can cause some weight gain; in a 2024 study, average gain at two years was about 3.6 pounds, slightly more than with sertraline, though individual responses vary widely. Tracking helps. Discuss concerns early. Alternatives exist. Weight isn't the only factor. Your psychiatrist can guide you. Regular follow-up helps. Plans can be adjusted.
Is escitalopram better than sertraline?
Neither escitalopram nor sertraline is clearly better for everyone; both are effective SSRIs, and the choice depends on side effects, past response, other conditions, and interactions. Sertraline has more breastfeeding data. Escitalopram is simple to dose. Your psychiatrist can help choose. Switching is possible if needed. Your psychiatrist can guide you.
Can I stop escitalopram suddenly?
Don't stop escitalopram suddenly; tapering gradually with your psychiatrist reduces discontinuation symptoms such as dizziness, irritability, flu-like feelings, and sleep problems. The pace is individualized. Symptoms are usually temporary. Plan changes together. Relapse risk is monitored. Your psychiatrist can guide you. Regular follow-up helps. Plans can be adjusted.
Can escitalopram be prescribed by telehealth?
Yes, Dr. Farkas can evaluate and prescribe escitalopram when appropriate by secure telehealth for adults in South Carolina and New York. Bring your medication list. Prescriptions go to your pharmacy. You'll need a private space. Follow-ups use the same platform. Your psychiatrist can guide you. Regular follow-up helps. Plans can be adjusted.
A clear plan makes the first weeks easier.
Careful, supported SSRI management.
Sources
- Harvard Health Publishing. “Weighing in on weight gain from antidepressants.” Harvard Health Blog, August 2024. https://www.health.harvard.edu/blog/weighing-in-on-weight-gain-from-antidepressants-202408023063
- American Psychiatric Association. “Bupropion linked to lowest weight gain.” Psychiatric News Alert, July 2024. https://alert.psychnews.org/2024/07/bupropion-linked-to-lowest-weight-gain.html
- Cipriani A, Furukawa TA, Salanti G, et al. “Comparative efficacy and acceptability of 21 antidepressant drugs for the acute treatment of adults with major depressive disorder: a systematic review and network meta-analysis.” The Lancet, 2018;391(10128):1357–1366. https://boris.unibe.ch/112281
Educational content only. This article does not constitute medical advice and does not establish a doctor-patient relationship. If you are in crisis, call or text 988 (Suicide & Crisis Lifeline) or call 911. Treatment decisions should be made with a qualified clinician familiar with your circumstances. Last reviewed: September 2026.