Sertraline and Domperidone: 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 recordDomperidone
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 can affect your heart's rhythm. Sertraline (an antidepressant) and domperidone (used for nausea and stomach problems) can each stretch out a part of your heartbeat called the QT interval. When you take them together, that effect can add up, which in rare cases could lead to an abnormal heart rhythm.
This concern is based mostly on how these drugs work rather than a lot of real-world cases, but it is taken seriously. Please don't stop either medicine on your own. Talk with your pharmacist or doctor. They can decide whether this combination is right for you, choose a safer option, or keep a closer eye on you.
Effect: Additive risk of QT interval prolongation and potential ventricular arrhythmias (including torsades de pointes) with concurrent sertraline and domperidone.
Mechanism: Pharmacodynamic additive QT prolongation; both agents can delay cardiac repolarization. This is a PD interaction, not a metabolic one, and neither drug is a prodrug here.
- Direction/magnitude: Additive; magnitude not quantified.
- Onset: Unspecified.
- Evidence: Theoretical.
- Severity: Major.
- Management: Avoid coadministration where possible. If unavoidable, consider ECG monitoring, correct electrolytes (K+, Mg2+), review other QT-prolonging agents, and individualize therapy.
What happens
An increased risk of QT interval prolongation
Interaction Deep Dive
Concurrent use of sertraline with this drug should be avoided, since combining them can raise the likelihood of QT prolongation and/or ventricular arrhythmias1.
Why it happens (mechanism)
Additive QT interval prolongation
How to manage this interaction
What your care team may do:
- Prefer to avoid using these two together when a suitable alternative exists.
- If both are needed, they may monitor you more closely, including checking your heart rhythm (ECG) and blood electrolytes such as potassium and magnesium.
- Review your other medicines for anything else that affects heart rhythm.
What you should do: Keep taking both exactly as prescribed for now, and bring this up with your pharmacist or prescriber. Tell them right away if you feel a fast or irregular heartbeat, fainting, dizziness, or palpitations.
Management is individual — confirm any change with your pharmacist or prescriber.
Common questions
Can I take Sertraline and Domperidone together?
Sertraline and domperidone can each prolong the QT interval, so combining them may raise the risk of a dangerous heart rhythm; this combination is generally best avoided, so check with your pharmacist or doctor before using both. Always confirm with your pharmacist or prescriber before making any change.
How serious is the Sertraline and Domperidone 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 Domperidone interaction managed?
What your care team may do: Prefer to avoid using these two together when a suitable alternative exists. If both are needed, they may monitor you more closely, including checking your heart rhythm (ECG) and blood electrolytes such as potassium and magnesium. Review your other medicines for anything else that affects heart rhythm. What you should do: Keep taking both exactly as prescribed for now,… 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 Domperidone 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: ZOLOFT oral tablets, oral solution, sertraline hydrochloride oral tablets, oral solution. Viatris Specialty LLC (per FDA), Morgantown, WV, 2023. DailyMed
Keep reading about Sertraline
Keep reading about Domperidone
These medications also interact with supplements
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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