Sertraline and Triclabendazole: 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
Sertraline
No brand names on recordTriclabendazole
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.
You've been prescribed sertraline (an antidepressant) along with triclabendazole (a medicine that treats certain parasite infections). Both of these can affect the timing of your heartbeat, in a way doctors call QT prolongation. When two medicines that do this are taken together, the effect can add up and slightly raise the chance of an irregular heartbeat.
The good news is that this concern is mostly theoretical, and triclabendazole is usually taken for just a short time. Your care team can manage this easily, often by checking an ECG (a quick heart tracing) while you take both. Let your doctor or pharmacist know if you feel faint, dizzy, or notice a fluttering heartbeat.
Effect: Additive QT-interval prolongation with concomitant sertraline and triclabendazole. Both agents independently prolong the QTc; combined use is a pharmacodynamic (additive), not pharmacokinetic, interaction. Neither is a prodrug relevant here.
- Direction/magnitude: Increased QTc prolongation risk; triclabendazole's QTc effect may increase with longer treatment duration. Overall evidence is theoretical.
- Severity/onset: Major; onset unspecified.
- Management: Obtain baseline and follow-up ECG, monitor electrolytes (K+, Mg2+), and assess for additional QT-prolonging agents. Discontinue if arrhythmia or significant QTc prolongation occurs.
What happens
An increased risk of QT interval prolongation
Interaction Deep Dive
Taking triclabendazole together with this drug can produce additive prolongation of the QT interval. When triclabendazole is combined with an agent that prolongs QT, ECG monitoring is advised, and therapy should be stopped if any indications of cardiac arrhythmias appear. Triclabendazole itself lengthens the QT interval, and the degree of QTc prolongation may become greater as the duration of treatment lengthens1.
Why it happens (mechanism)
Additive QT interval prolongation
How to manage this interaction
Keep taking both medicines exactly as prescribed unless your care team tells you otherwise. Because both can lengthen the QT interval, your team may take some simple steps to keep you safe.
- Your doctor may order an ECG (heart tracing) while you use triclabendazole alongside sertraline, especially since triclabendazole's effect can grow with longer treatment.
- They may check your potassium and magnesium levels, since low levels add to the risk.
- Get medical help right away if you feel a fluttering or pounding heartbeat, dizziness, or fainting.
Ask your pharmacist or prescriber before adding any new medicines, including over-the-counter drugs.
Management is individual — confirm any change with your pharmacist or prescriber.
Common questions
Can I take Sertraline and Triclabendazole together?
Taking sertraline with triclabendazole may add together to prolong the QT interval, so your care team may check an ECG during treatment. Keep taking both as prescribed and report any dizziness, fainting, or irregular heartbeat. Always confirm with your pharmacist or prescriber before making any change.
How serious is the Sertraline and Triclabendazole 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 Sertraline and Triclabendazole interaction managed?
Keep taking both medicines exactly as prescribed unless your care team tells you otherwise. Because both can lengthen the QT interval, your team may take some simple steps to keep you safe. Your doctor may order an ECG (heart tracing) while you use triclabendazole alongside sertraline, especially since triclabendazole's effect can grow with longer treatment. They may check your potassium and magne… 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 Sertraline or Triclabendazole 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 (1)
- Product Information: EGATEN(R) oral tablets, triclabendazole oral tablets. Novartis Pharmaceuticals Corporation (per FDA), East Hanover, NJ, 2022. DailyMed
Keep reading about Sertraline
Keep reading about Triclabendazole
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Prescription drugs aren't the whole picture — herbal and dietary supplements can interact with them too. From the evidence-graded Natural Medicines database:
major · moderate · minor — check everything you take with our drug–supplement interaction checker.
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