Which selective serotonin reuptake inhibitors (SSRIs) are approved for the treatment of post‑traumatic stress disorder (PTSD)?

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Last updated: November 10, 2026 • View editorial policy

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FDA-Approved SSRIs for PTSD

Only sertraline and paroxetine have FDA approval for the treatment of post-traumatic stress disorder (PTSD). 1, 2, 3, 4, 5, 6, 7, 8, 9

Key Points

  • Sertraline and paroxetine are the sole SSRIs with FDA indication for PTSD, based on large-scale, well-designed placebo-controlled trials that demonstrated efficacy 5

  • While fluoxetine has shown efficacy in controlled trials for chronic PTSD 2, 4, it does not have FDA approval for this indication

  • No other SSRIs (citalopram, escitalopram, fluvoxamine) have FDA approval for PTSD

Clinical Context

These are the only two medications of any class approved by the FDA specifically for PTSD 6, 8. Despite decades of research and numerous trials with other agents, sertraline and paroxetine remain the only pharmacologic options with regulatory approval for this indication.

Evidence Base

The approval of sertraline and paroxetine was based on their demonstrated effectiveness in multiple rigorous clinical trials showing:

  • Superiority over placebo in reducing PTSD symptoms
  • Acceptable safety profiles
  • Benefits maintained with continuation treatment for 6-12 months 4

Important Caveat

While fluoxetine has substantial evidence supporting its use in PTSD and is commonly prescribed off-label for this condition 2, 3, 4, it lacks FDA approval. The distinction matters for insurance coverage, medicolegal considerations, and informed consent discussions with patients.

Treatment duration should be at least 12 months, and likely much longer—potentially 2 years or more given the risks of untreated PTSD 3.

References

Research

Current concepts in pharmacotherapy for posttraumatic stress disorder.

Psychiatric services (Washington, D.C.), 2004

Research

Investigational drugs in PTSD.

Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology, 2026

Research

Treatment of posttraumatic stress disorder (PTSD).

Dialogues in clinical neuroscience, 2026

Research

An Update on Psychotherapy for the Treatment of PTSD.

The American journal of psychiatry, 2025

Research

Posttraumatic Stress Disorder Psychopharmacology Algorithm Update-2024-2025.

Psychiatry and clinical psychopharmacology, 2025

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