Eletriptan 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
Eletriptan
Sertraline
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.
Eletriptan (Relpax) is a migraine medicine, and sertraline is an antidepressant. Both can raise levels of a brain chemical called serotonin. When you take them together, that extra serotonin can, in rare cases, build up too much and cause a problem called serotonin syndrome.
Signs to watch for include feeling agitated or shaky, a fast heartbeat, sweating, fever, muscle twitching, or nausea and diarrhea. The good news is this is uncommon, and many people take these two together safely. Your care team can manage this by watching you closely, especially when you first start or change a dose. If you notice these symptoms, reach out to your doctor or pharmacist right away.
Mechanism: additive serotonergic effects. Eletriptan is a 5-HT1B/1D agonist; sertraline is an SSRI increasing synaptic serotonin. Combined use can theoretically precipitate serotonin syndrome. Neither drug is a prodrug; this is a pharmacodynamic (not PK) interaction.
Evidence: theoretical, though life-threatening cases are reported. A 14-year cohort estimated risk at 0 to 4 cases per 10,000 person-years.
- Severity: major; onset: unspecified (often early or after dose escalation)
- Monitor for: agitation, hallucinations, tachycardia, labile BP, hyperthermia, hyperreflexia/clonus, GI upset
- Management: co-use may proceed if warranted; observe closely at initiation and dose increases
What happens
Increased risk of serotonin syndrome
Interaction Deep Dive
Because their serotonergic actions are additive, taking eletriptan together with an SSRI can produce serotonin syndrome. Coadministration of 5-hydroxytryptamine receptor agonists (triptans) with SSRIs has been linked to reports of serotonin syndrome that was life-threatening2. Over a 14-year observation period involving patients who were coprescribed triptans alongside SSRI or serotonin norepinephrine reuptake inhibitor (SNRI) antidepressants, the concomitant-use risk of serotonin syndrome was estimated at 0 to 4 cases for every 10,000 person-years of exposure 1. Presentations can involve agitation, hallucinations, coma, incoordination, tachycardia, labile blood pressure, hyperthermia, hyperreflexia, nausea, vomiting, and diarrhea. Should combined therapy with eletriptan and an SSRI be necessary, close observation for indications of serotonin syndrome is warranted, especially when starting treatment and when doses are raised 2.
Why it happens (mechanism)
Additive serotonergic effects
How to manage this interaction
If both medicines are prescribed together, that can be appropriate. Here is how a care team typically handles it:
- Keep taking both as prescribed unless your doctor tells you otherwise. Do not stop on your own.
- Your team may monitor you more closely, especially when you start either drug or when a dose is increased.
- Learn the warning signs: agitation, confusion, fast heartbeat, sweating, fever, muscle twitching or stiffness, shivering, or nausea, vomiting, and diarrhea.
Get medical help promptly if these symptoms appear. Ask your pharmacist or prescriber any questions about combining these two.
Management is individual — confirm any change with your pharmacist or prescriber.
Literature reports
1 report — tap to read
a) During a 14-year study of patients who were coprescribed 5-hydroxytryptamine receptor agonists (triptans) together with SSRI or serotonin norepinephrine reuptake inhibitor (SNRI) antidepressants (n=19,017; total exposure=30,928 person-years), the risk of serotonin syndrome associated with concurrent use was found to be 0 to 4 cases per 10,000 person-years of exposure. When only confirmed cases were considered (n=2), and when confirmed cases were combined with possible cases (n=7), the risk of serotonin syndrome with concomitant 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 were given triptan prescriptions, including sumatriptan, zolmitriptan, naratriptan, rizatriptan, eletriptan, almotriptan, or frovatriptan, along with a coprescribed SSRI or SNRI antidepressant, including citalopram, fluvoxamine, escitalopram, paroxetine, fluoxetine, sertraline, duloxetine, or venlafaxine 1.
Common questions
Can I take Eletriptan and Sertraline together?
Taking eletriptan with sertraline can rarely raise serotonin too much (serotonin syndrome), so keep taking both as prescribed but watch for agitation, fast heartbeat, fever, or muscle twitching and get help promptly if they appear. Always confirm with your pharmacist or prescriber before making any change.
How serious is the Eletriptan 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 "unspecified". The timing of this interaction is not well characterized.
How is the Eletriptan and Sertraline interaction managed?
If both medicines are prescribed together, that can be appropriate. Here is how a care team typically handles it: Keep taking both as prescribed unless your doctor tells you otherwise. Do not stop on your own. Your team may monitor you more closely, especially when you start either drug or when a dose is increased. Learn the warning signs: agitation, confusion, fast heartbeat, sweating, fever, mus… Management is individual — always follow your own care team's guidance.
How strong is the evidence for this interaction?
The evidence is graded "theoretical". Predicted from the drugs' pharmacology; not yet confirmed in people.
From our Q&A
Real reader questions about these medications, each personally answered by our pharmacist:
Questions for your pharmacist
- Does my dose of Eletriptan 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 (2)
- 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: RELPAX(R) oral tablets, eletriptan hydrobromide oral tablets. Roerig, New York, NY, 2011. DailyMed
Keep reading about Eletriptan
Keep reading about Sertraline
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