Drug interactions
Buprenorphine buccal + Granisetron
Severity: Moderate
Buprenorphine buccal and Granisetron: moderate interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Buprenorphine can prolong the QT interval, particularly at higher doses, and granisetron has a similar effect. Together they may add to arrhythmia risk, though the buccal product's effect is modest.
What this interaction means in plain words
Buprenorphine buccal and Granisetron can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Why it happens
Additive pharmacodynamic QT prolongation.
What to do
Obtain a baseline ECG in patients with cardiac risk factors and monitor during co-use. Correct potassium and magnesium and consider another antiemetic if QTc lengthens.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Buprenorphine buccal and Granisetron, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 7 days on the web. No card needed.
Other interactions of Granisetron
- Apomorphine + Granisetron Contraindicated
- Amiodarone + Granisetron Major
- Amisulpride + Granisetron Major
- Arsenic trioxide + Granisetron Major
- Artemether / lumefantrine + Granisetron Major
- Artemether + Granisetron Major
Frequently asked questions
Can I take Buprenorphine buccal with Granisetron?
MediHelp rates the interaction as moderate. Buprenorphine buccal and Granisetron can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Buprenorphine can prolong the QT interval, particularly at higher doses, and granisetron has a similar effect. Together they may add to arrhythmia risk, though the buccal product's effect is modest.
How serious is the interaction between Buprenorphine buccal and Granisetron?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Obtain a baseline ECG in patients with cardiac risk factors and monitor during co-use. Correct potassium and magnesium and consider another antiemetic if QTc lengthens.
What other medicines interact with Granisetron?
MediHelp also lists interactions of Granisetron with, for example, Apomorphine, Amiodarone, Amisulpride. The full list is on the Granisetron page.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
