Oxaliplatin and Buprenorphine: 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
Buprenorphine
Oxaliplatin
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 your medicines can affect your heart's rhythm in a similar way. Buprenorphine (a pain or opioid-treatment medicine) and oxaliplatin (a chemotherapy medicine) can each stretch out a part of your heartbeat called the QT interval. When two medicines do this at once, the effect can add up and slightly raise the chance of an irregular heartbeat.
This concern is based on theory rather than lots of real-world reports, so try not to worry. Your care team can manage it well, often by checking your heart with an EKG and watching your other medicines. Please keep taking both as prescribed and let your doctor or pharmacist know if you feel faint, dizzy, or notice a fluttering heartbeat.
Effect: Additive QT-interval prolongation with increased theoretical risk of ventricular arrhythmias (including torsades de pointes).
Mechanism: Both agents independently prolong cardiac repolarization; combined use produces additive QT effect. Neither is a prodrug relevant to this pharmacodynamic interaction.
- Direction: Additive PD effect, increased QT risk
- Onset: Unspecified
- Evidence: Theoretical
- Severity: Major
Management: Where possible, avoid concomitant use. If co-administered, obtain baseline and periodic ECGs, monitor and correct electrolytes (K+, Mg2+), and review other QT-prolonging agents. Individualize based on cardiac risk factors.
What happens
Increased risk of QT-interval prolongation
Interaction Deep Dive
QT interval prolongation and ventricular arrhythmias are possible adverse effects of oxaliplatin. Its concurrent administration with other agents recognized as having the capacity to lengthen the QT interval should be avoided1.
Why it happens (mechanism)
Additive QT-interval prolongation
How to manage this interaction
Your care team can keep this manageable. Because both drugs can affect heart rhythm, they may:
- Consider whether both are truly needed together, or whether an alternative fits your situation
- Check your heart rhythm with an EKG before and during treatment
- Monitor and correct blood minerals like potassium and magnesium
- Review your full medicine list for other rhythm-affecting drugs
Keep taking both exactly as prescribed unless your doctor tells you otherwise. Ask your pharmacist or prescriber before adding any new medicine, and report dizziness, fainting, or a fluttering or pounding heartbeat right away.
Management is individual — confirm any change with your pharmacist or prescriber.
Common questions
Can I take Oxaliplatin and Buprenorphine together?
Combining buprenorphine and oxaliplatin can add up to strain your heart's rhythm (QT prolongation), so your care team may avoid the combo or monitor your heart and electrolytes closely. 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 Oxaliplatin and Buprenorphine 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 Oxaliplatin and Buprenorphine interaction managed?
Your care team can keep this manageable. Because both drugs can affect heart rhythm, they may: Consider whether both are truly needed together, or whether an alternative fits your situation Check your heart rhythm with an EKG before and during treatment Monitor and correct blood minerals like potassium and magnesium Review your full medicine list for other rhythm-affecting drugs Keep taking both e… 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.
Questions for your pharmacist
- Does my dose of Oxaliplatin or Buprenorphine 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: ELOXATIN(R) intravenous injection, oxaliplatin intravenous injection. sanofi-aventis US LLC (per FDA), Bridgewater, NJ, 2020. DailyMed
Keep reading about Buprenorphine
Keep reading about Oxaliplatin
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