Quick Answer
Sertraline for PTSD is usually started at a low dose and increased gradually over weeks, based on side effects and response. It's one of two SSRIs approved by the FDA for PTSD. Improvement often builds over months, so regular follow-up and patience during the first weeks matter.
Understanding sertraline for PTSD
Sertraline is a selective serotonin reuptake inhibitor, or SSRI, and it’s one of only two medications approved by the U.S. Food and Drug Administration for PTSD, along with paroxetine. A review in the American Psychiatric Association’s FOCUS journal describes SSRIs as the current pharmacological treatment of choice for PTSD, supported by multiple guidelines. Sertraline is widely used, generally well tolerated and available as an inexpensive generic. It can reduce intrusive memories, hyperarousal, avoidance and mood symptoms. It tends to work well as part of a plan that often includes trauma-focused therapy. This guide is part of our guide to PTSD care in New York.
The same FOCUS review reported that trials of sertraline and paroxetine consistently produced remission in about 30% of participants, and that extending sertraline treatment from 12 to 36 weeks increased remission from 30% to 55%. That finding shapes how titration is approached: the goal isn’t a quick fix but reaching an effective dose and staying on it long enough for improvement to build. Many people stop too early, before the medication has had a fair trial. Our guide on PTSD medication side effects covers what to expect.
For New Yorkers starting medication for PTSD, a steady titration plan helps the first months feel more predictable. The NYC Health Department‘s 2024 report estimated that about 366,000 adult New Yorkers, roughly 5%, have been diagnosed with PTSD by a health care professional. Secure video visits from anywhere in New York can make it easier to start trauma care from a place that feels safe.
Starting dose and increases, early SSRI side effects in PTSD, and how long sertraline takes are the three topics this guide covers.
Early side effects
Common early side effects include nausea, loose stools, headache, sleep changes, jitteriness and sweating. Many fade within the first few weeks. Sexual side effects can appear and may persist, and they’re worth mentioning, since options exist. Taking sertraline with food may ease stomach upset, and the time of day can be adjusted if it affects sleep. Starting any antidepressant calls for attention to mood and safety, especially in younger adults. Report new or worsening thoughts of suicide right away.
How long it takes
Some people notice better sleep or less tension within a few weeks, while intrusive memories and avoidance often take longer. A fair trial usually means several weeks at an effective dose, not days. Because improvement can keep building for months, clinicians often continue sertraline well beyond the first signs of benefit. Tracking scores every few weeks shows whether progress is real. If there’s little change after an adequate trial, your prescriber can discuss a dose change, switching or adding treatment.
The Bottom Line
Sertraline for PTSD is common and treatable, and careful care can make daily life feel more manageable.
Frequently Asked Questions
Is sertraline FDA-approved for PTSD?
Yes, sertraline is one of two medications approved by the FDA for PTSD, along with paroxetine, and both are SSRIs. A review in the APA's FOCUS journal describes SSRIs as the current pharmacological treatment of choice for PTSD. Other medications are sometimes used off label. Your prescriber will explain the options. Therapy is often combined with medication.
Why is sertraline started at a low dose for PTSD?
People with PTSD can be sensitive to early side effects like jitteriness or stomach upset, which can feel like anxiety. Starting low reduces that risk and makes it easier to continue. The dose is then increased in steps as you tolerate it. The low dose is a bridge, not the final dose. Your prescriber will explain the target range.
How long does sertraline take to work for PTSD?
Some people notice better sleep or less tension within a few weeks. Intrusive memories and avoidance often take longer to improve. A review found extending sertraline from 12 to 36 weeks raised remission from 30% to 55%. That's why patience and follow-up matter. Scores are tracked to judge progress.
What side effects does sertraline cause?
Common early side effects include nausea, loose stools, headache, sleep changes and jitteriness. Many fade within the first few weeks. Sexual side effects can appear and may persist, so mention them. Taking it with food may ease stomach upset. Report new or worsening thoughts of suicide right away.
Can I stop sertraline once I feel better?
Don't stop sertraline suddenly, since that can cause discontinuation symptoms like dizziness and irritability. Stopping too soon also raises the chance of relapse. Many people continue for a while after improvement. Any change should be planned with your prescriber and done gradually. Follow-up helps catch early warning signs.
Can sertraline be managed by video in New York?
Yes, starting and adjusting sertraline can happen through secure video visits anywhere in New York. You need to be physically in New York during each visit. Prescriptions go electronically to your pharmacy. The practice is in-network with Aetna and Cigna; confirm your New York plan with the office. Follow-ups are scheduled around dose changes.
Key Takeaways
- Sertraline and paroxetine are the two medications FDA-approved for PTSD.
- Doses usually start low and increase step by step over several weeks.
- Early side effects are common and often ease within a few weeks.
- Remission rates rose from 30% to 55% when sertraline treatment was extended from 12 to 36 weeks.
Sertraline for PTSD at a glance
| Phase | Focus |
|---|---|
| Start | Low dose to limit early side effects |
| First weeks | Check tolerance, sleep and safety |
| Adjustment | Gradual increases if tolerated |
| Months | Response builds; PCL-5 tracking |
| Maintenance | Continue at an effective dose |
Why start low
People with PTSD are often sensitive to body sensations, and early SSRI side effects, like jitteriness, stomach upset or restlessness, can feel like anxiety or hyperarousal. Starting at a low dose reduces that risk and makes it easier to continue. The low starting dose isn’t meant to be the final dose. It’s a bridge that lets your body adjust. After a period of tolerating it, the dose is usually increased in steps. Your prescriber will explain the target range and the pace.
Dose increases
Increases typically happen every few weeks, depending on how you’re tolerating the medication and whether symptoms are improving. If side effects are strong, the pace slows. If symptoms are improving well, the dose may stay where it is. Each change is followed by a check-in, often with a PCL-5 to compare with your baseline. Don’t increase or decrease the dose on your own, and don’t stop suddenly, which can cause discontinuation symptoms. Changes go more smoothly when planned together. Our guides on PTSD medication side effects and the early PTSD follow-up schedule cover related topics.
Sertraline starts for New York patients
Titration follow-ups work well by secure video, with prescriptions sent electronically. Visits run by secure video anywhere in New York, while you’re physically in the state. The practice is in-network with Aetna and Cigna; confirm your New York plan with the office, and see self-pay fees on the Good Faith Estimate page.
Sertraline and therapy
Medication and trauma-focused therapy often work well together. Sertraline can lower arousal and distress enough that therapy feels more manageable, while therapy addresses the memories, beliefs and avoidance that medication alone may not change. Some people start with one and add the other. With your permission, your prescriber and therapist can share updates. If therapy temporarily stirs up symptoms, your prescriber can help with sleep or other short-term needs.
When to call
Contact your prescriber if side effects are hard to tolerate, you feel much more anxious or agitated after starting, you have signs of an allergic reaction, or symptoms suddenly worsen. New or worsening thoughts of suicide need immediate help through 988 or 911. Tell your prescriber about any other medications or supplements, since some interact with SSRIs. Questions about missed doses or refills are always okay to ask.
Where to go from here
- Right now, if you're not safe
- Call or text 988, or call 911.
- If you'd like an evaluation
- See how scheduling and telehealth work on the new patient page.
- If you want to keep reading
- Return to the New York PTSD hub for more guides. For more help preparing and finding care, see NIMH’s tips for talking with your health care provider.
How We Reviewed This Page
Written by Steven Lockhart of Health Marketing Group and clinically reviewed by Gabriella I. Farkas, MD PhD, a board-certified psychiatrist. Clinical information comes from the sources listed below, and the page is reviewed every 180 days or when guidance changes.
What’s new: September 29, 2026. Page published.
References
- Friedman MJ. PTSD: Pharmacotherapeutic Approaches. FOCUS (American Psychiatric Association). https://focus.psychiatryonline.org/doi/10.1176/appi.focus.11.3.315
- National Institute of Mental Health. Post-Traumatic Stress Disorder (PTSD) statistics. https://www.nimh.nih.gov/health/statistics/post-traumatic-stress-disorder-ptsd
- NYC Health Department. The State of Mental Health of New Yorkers (2024). https://www.nyc.gov/assets/doh/downloads/pdf/mh/state-of-mental-health-new-yorkers.pdf
- 988 Suicide & Crisis Lifeline. https://988lifeline.org/
- Tips for talking with your health care provider. https://www.nimh.nih.gov/health/publications/tips-for-talking-with-your-health-care-provider