Rizatriptan and Sertraline: Interaction Details
AI-assisted, pharmacist-reviewed · AI content regenerated Jul 11, 2026 · Source data updated Jul 2, 2026 · Sources: FDA labeling, DDInter 2.0, cited literature
Rizatriptan
No brand names on recordSertraline
No brand names on record
How we grade severity & evidence
Severity levels
- Contraindicated: These should generally not be used together.
- Major: Potentially serious — often needs a change or close monitoring.
- Moderate: Can be significant — usually manageable with monitoring.
- Minor: Usually limited clinical impact.
Evidence grades
- Established: Well documented — supported by controlled studies or strong clinical data.
- Probable: Good supporting evidence, though not definitively proven.
- Suspected: Some evidence suggests this interaction, but it is not well established.
- Possible: Limited or conflicting evidence; the interaction may occur.
- Theoretical: Predicted from the drugs' pharmacology; not yet confirmed in people.
Ratings come from the documented interaction literature and are reviewed by a pharmacist. They describe the documented risk of the combination, not what will necessarily happen to you — your dose, timing, and health picture all matter.
Both of these medicines raise serotonin, a chemical messenger in your body. Rizatriptan treats migraines, and sertraline treats depression and anxiety. When you take them together, the extra serotonin can sometimes build up too much and cause a rare but serious problem called serotonin syndrome.
Warning signs can come on quickly, within minutes to hours, especially when you start one of these or your dose goes up. Watch for feeling restless or shaky, a fast heartbeat, sweating, fever, muscle twitching, or nausea and diarrhea. The good news is that many people use these two safely with care. Talk with your pharmacist or doctor, and get medical help right away if these symptoms show up.
Effect: Additive serotonergic activity from a 5-HT receptor agonist (rizatriptan) plus an SSRI (sertraline), increasing risk of serotonin syndrome. This is a pharmacodynamic interaction, not a metabolic/prodrug issue.
- Direction: Increased serotonergic effect.
- Onset: Rapid (minutes to hours after initiation or dose increase).
- Severity/Evidence: Major; probable (case reports).
- Monitoring: Watch for autonomic instability (tachycardia, labile BP, hyperthermia), neuromuscular changes (clonus, hyperreflexia, incoordination), and altered mental status (agitation, hallucinations); GI symptoms.
- Management: Discontinue rizatriptan if serotonin syndrome is suspected; individualize therapy and monitor closely.
What happens
An increased risk of serotonin syndrome
Interaction Deep Dive
When a triptan (a 5-hydroxytryptamine receptor agonist) such as rizatriptan is given together with an SSRI, serotonin syndrome has been documented, and this reaction can be life-threatening. Onset of symptoms may appear within minutes to hours after either starting a serotonergic drug or raising its dose. If serotonin syndrome is suspected, rizatriptan should be stopped12. The syndrome can present with restlessness, hallucinations, loss of coordination, fast heart beat, rapid changes in blood pressure, increased body temperature, overreactive reflexes, nausea, vomiting, and diarrhea. Patients receiving this combination should be watched closely for these symptoms3.
Why it happens (mechanism)
Additive serotonergic effects
How to manage this interaction
This combination can be used with care, but your team will watch for serotonin syndrome.
- Keep taking both exactly as prescribed unless your doctor or pharmacist tells you otherwise. Do not stop either on your own.
- Be extra alert in the first minutes to hours after starting either drug or after a dose increase, since symptoms tend to appear then.
- Know the warning signs: restlessness, hallucinations, poor coordination, fast heartbeat, blood pressure swings, fever, twitchy or overactive reflexes, nausea, vomiting, or diarrhea.
- Seek medical help right away if these occur. Rizatriptan may be stopped if serotonin syndrome is suspected.
- Tell your pharmacist about all serotonergic medicines you take so your care can be individualized.
Management is individual — confirm any change with your pharmacist or prescriber.
Literature reports
2 reports — tap to read
a) In a study following patients who were co-prescribed 5-hydroxytryptamine receptor agonists (triptans) together with SSRI or serotonin norepinephrine reuptake inhibitor (SNRI) antidepressants over a 14 year period (n=19,017; total exposure=30,928 person-years), the risk of serotonin syndrome from combined use was estimated at 0 to 4 cases per 10,000 person-years of exposure. When only confirmed cases were counted (n=2) and when confirmed cases plus possible cases were counted (n=7), the risk of serotonin syndrome with concurrent use was 0.6 (95% CI, 0 to 1.5) and 2.3 (95% CI, 0.6 to 3.9) cases per 10,000 person-years of exposure, respectively. Over the course of the study, an average of 26% (range, 21% to 29%) of patients received triptan prescriptions, such as SUMAtriptan, ZOLMitriptan, naratriptan, rizatriptan, eletriptan, almotriptan, or frovatriptan, along with a co-prescribed SSRI or SNRI antidepressant, such as citalopram, fluvoxaMINE, escitalopram, PARoxetine, FLUoxetine, sertraline, DULoxetine, or venlafaxine 4.
b) Twelve healthy volunteers were given PARoxetine 20 mg daily for two weeks along with a single 10 mg dose of rizatriptan. The plasma concentrations of rizatriptan were not changed by the administration of PARoxetine 15.
Common questions
Can I take Rizatriptan and Sertraline together?
Taking rizatriptan with sertraline can raise serotonin too much and, in rare cases, cause serotonin syndrome. Keep taking both as prescribed, know the warning signs (agitation, fast heartbeat, fever, muscle twitching), and get medical help quickly if they appear. Always confirm with your pharmacist or prescriber before making any change.
How serious is the Rizatriptan and Sertraline interaction?
It is rated major. Potentially serious — often needs a change or close monitoring.
How quickly could this interaction happen?
The documented onset is "rapid". Effects can appear quickly, often within about 24 hours of combining the drugs.
How is the Rizatriptan and Sertraline interaction managed?
This combination can be used with care, but your team will watch for serotonin syndrome. Keep taking both exactly as prescribed unless your doctor or pharmacist tells you otherwise. Do not stop either on your own. Be extra alert in the first minutes to hours after starting either drug or after a dose increase, since symptoms tend to appear then. Know the warning signs: restlessness, hallucinations… Management is individual — always follow your own care team's guidance.
How strong is the evidence for this interaction?
The evidence is graded "probable". Good supporting evidence, though not definitively proven.
From our Q&A
Real reader questions about these medications, each personally answered by our pharmacist:
Questions for your pharmacist
- Does my dose of Rizatriptan or Sertraline need adjusting while I take them together?
- What symptoms should prompt me to call you or my prescriber right away?
- Does the timing of my doses matter for this combination?
- Is there a safer alternative to one of these medications for me?
References (5)
- Product Information: MAXALT(R) oral tablets, rizatriptan benzoate oral tablets. Merck Sharp & Dohme Corp. (per Manufacturer), Whitehouse Station, NJ, 2015. DailyMed
- Product Information: RizaFilm® oral film, rizatriptan oral film. Gensco Pharma (per FDA), Doral, FL, 2026. DailyMed
- US Food and Drug Administration: 5-Hydroxytryptamine Receptor Agonists (Triptans) Selective Serotonin Reuptake Inhibitors (SSRIs) Selective Serotonin/Norepinephrine Reuptake Inhibitors (SNRIs) Serotonin Syndrome. US Food and Drug Administration. Rockville, MDAvailable from URL:
- Orlova Y, Rizzoli P, & Loder E: Association of coprescription of triptan antimigraine drugs and selective serotonin reuptake inhibitor or selective norepinephrine reuptake inhibitor antidepressants with serotonin syndrome. JAMA Neurol 2018; 75(5):566-572. PubMed
- Product Information: RizaFilm(R) oral film, rizatriptan oral film. IntelGenx Corp (per FDA), Saint-Laurent, Quebec, Canada, 2023. DailyMed
Keep reading about Rizatriptan
Keep reading about Sertraline
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