Ziftomenib 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 recordZiftomenib
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 ziftomenib (a cancer medicine) can affect your heart's electrical rhythm in the same way. Doctors call this QT prolongation. When two drugs that do this are taken together, the effect can add up, which in rare cases can lead to a dangerous irregular heartbeat.
Right now this concern is based mostly on how these drugs are expected to behave, not on lots of real-world cases with this exact pair. The good news is your care team can manage it. If both are needed, they may check your heart with an ECG and keep a close eye on you. Never stop either medicine on your own, just talk with your doctor or pharmacist first.
Effect: Additive QTc prolongation with increased risk of torsades de pointes when sertraline is combined with ziftomenib.
Mechanism: Pharmacodynamic (additive), not a metabolic/prodrug interaction. Both agents carry independent QTc-prolonging potential.
- Direction/magnitude: Additive QT effect; magnitude not quantified.
- Onset: Unspecified.
- Evidence: Theoretical.
- Management: Avoid coadministration if possible. If unavoidable, obtain baseline ECG, repeat during concomitant use and as clinically indicated. Interrupt ziftomenib if QTc more than 500 ms or increase from baseline more than 60 ms. Correct electrolytes (K, Mg) and review other QT-prolonging agents.
What happens
An increased risk of QT interval prolongation and torsade de pointes
Interaction Deep Dive
Ziftomenib should not be given together with other agents recognized as having the capacity to lengthen the QTc interval. When such concurrent use is unavoidable, perform ECGs at the start of therapy, throughout the period of combined use, and whenever clinically warranted. Hold ziftomenib if the QTc interval exceeds 500 ms or if the change from baseline exceeds 60 ms. Combined use can additionally lead to adverse reactions linked to QTc interval prolongation, such as torsades de pointes, other serious arrhythmias, and sudden death1.
Why it happens (mechanism)
Additive QT interval prolongation
How to manage this interaction
Your care team's main goal is to protect your heart rhythm while treating your condition.
- Keep taking both medicines exactly as prescribed unless your doctor tells you otherwise.
- Your team may prefer to avoid using them together if there is a safe alternative, so it is worth asking about options.
- If both are needed, expect ECG checks when starting and during treatment, and closer monitoring overall.
- Tell your doctor about any fainting, dizziness, or a fluttering or pounding heartbeat.
Bring a full list of your medicines to your pharmacist or prescriber so they can review everything together.
Management is individual — confirm any change with your pharmacist or prescriber.
Common questions
Can I take Ziftomenib and Sertraline together?
Sertraline and ziftomenib can both prolong the QT interval, and taking them together may add up to a dangerous heart rhythm risk. Do not stop either drug on your own, but ask your doctor or pharmacist, since your team may avoid the combination or monitor your heart with ECGs. Always confirm with your pharmacist or prescriber before making any change.
How serious is the Ziftomenib 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 Ziftomenib and Sertraline interaction managed?
Your care team's main goal is to protect your heart rhythm while treating your condition. Keep taking both medicines exactly as prescribed unless your doctor tells you otherwise. Your team may prefer to avoid using them together if there is a safe alternative, so it is worth asking about options. If both are needed, expect ECG checks when starting and during treatment, and closer monitoring overal… 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 Ziftomenib 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: KOMZIFTI™ oral capsules, ziftomenib oral capsules. Kura Oncology, Inc (per manufacturer), San Diego, CA, 2025. DailyMed
Keep reading about Sertraline
Keep reading about Ziftomenib
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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