Pazopanib 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
Sertraline
No brand names on recordPazopanib
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 sertraline (an antidepressant) and pazopanib (a cancer medicine) can affect your heart's electrical rhythm in a way doctors call QT prolongation. When you take them together, that effect can add up, which may raise the small chance of an irregular heartbeat.
This concern is based on how these drugs work rather than on lots of real-world reports, so please don't worry or change anything on your own. Your care team is very good at watching for this. Let your pharmacist and doctor know you take both, and tell them if you feel dizzy, faint, or notice a fluttering or pounding heartbeat.
Effect: Additive QT interval prolongation with potential for ventricular arrhythmias (including torsades de pointes) when sertraline is combined with pazopanib.
Mechanism: Pharmacodynamic additive effect on cardiac repolarization; both agents carry QT-prolonging potential. Neither is a prodrug relevant to this interaction.
- Direction: Increased QT-prolongation risk.
- Onset: Unspecified.
- Evidence: Theoretical; severity rated major.
- Management: Avoid coadministration where feasible. If used together, obtain baseline and follow-up ECGs, monitor and correct electrolytes (K+, Mg2+), minimize other QT-prolonging agents, and individualize therapy.
What happens
An increased risk of QT interval prolongation
Interaction Deep Dive
Because concurrent use can raise the likelihood of QT prolongation and/or ventricular arrhythmias, giving sertraline together with this drug should be avoided1.
Why it happens (mechanism)
Additive QT interval prolongation
How to manage this interaction
The documented guidance is to avoid using these two together when possible because the QT effects can add up. Do not stop or change either medicine on your own.
- Keep taking both exactly as prescribed until you speak with your care team.
- Ask your pharmacist or prescriber whether an alternative antidepressant or cancer therapy fits your situation.
- If they continue both, your team may monitor you more closely, including heart tracing (ECG) and blood electrolytes, and doses may be individualized.
- Report any fainting, dizziness, or irregular/pounding heartbeat right away.
Management is individual — confirm any change with your pharmacist or prescriber.
Common questions
Can I take Pazopanib and Sertraline together?
Sertraline and pazopanib can each prolong the QT interval, so combining them may raise the risk of a dangerous irregular heartbeat; guidance is to avoid this combination when possible, so check with your doctor or pharmacist before changing anything. Always confirm with your pharmacist or prescriber before making any change.
How serious is the Pazopanib 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 Pazopanib and Sertraline interaction managed?
The documented guidance is to avoid using these two together when possible because the QT effects can add up. Do not stop or change either medicine on your own. Keep taking both exactly as prescribed until you speak with your care team. Ask your pharmacist or prescriber whether an alternative antidepressant or cancer therapy fits your situation. If they continue both, your team may monitor you mor… 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 Pazopanib 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 (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 Pazopanib
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.
Check another combination
Our instant two-drug interaction checker is almost here.
Still have questions about this combination?
Every question gets a real answer from a licensed pharmacist — free, and usually within a day.
Ask the pharmacist