Drug interactions
Granisetron + Panobinostat
Severity: Major
Granisetron and Panobinostat: major interaction.
Last updated Sources: US FDA label
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
Both drugs can prolong the QT interval, and panobinostat has a significant QT-prolonging effect. Together they may increase the risk of torsades de pointes, although 5-HT3 antagonists are sometimes needed for chemotherapy-related nausea.
What this interaction means in plain words
Granisetron and Panobinostat can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Granisetron belongs to Gastrointestinal Tract; Panobinostat belongs to Oncology.
Why it happens
Additive pharmacodynamic QT prolongation through delayed ventricular repolarization.
What to do
Obtain a baseline ECG and keep potassium and magnesium within normal range. If granisetron is required, monitor ECG frequently and stop or change therapy if QTc becomes markedly prolonged.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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References
Other interactions of Granisetron
- Apomorphine + Granisetron Contraindicated
- Amiodarone + Granisetron Major
- Amisulpride + Granisetron Major
- Arsenic trioxide + Granisetron Major
- Artemether / lumefantrine + Granisetron Major
- Artemether + Granisetron Major
Other interactions of Panobinostat
- Amiodarone + Panobinostat Contraindicated
- Anagrelide + Panobinostat Contraindicated
- Chloroquine + Panobinostat Contraindicated
- Chlorpromazine + Panobinostat Contraindicated
- Dronedarone + Panobinostat Contraindicated
- Haloperidol + Panobinostat Contraindicated
Frequently asked questions
Can I take Granisetron with Panobinostat?
MediHelp rates the interaction as major. Granisetron and Panobinostat can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Both drugs can prolong the QT interval, and panobinostat has a significant QT-prolonging effect. Together they may increase the risk of torsades de pointes, although 5-HT3 antagonists are sometimes needed for chemotherapy-related nausea.
How serious is the interaction between Granisetron and Panobinostat?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Obtain a baseline ECG and keep potassium and magnesium within normal range. If granisetron is required, monitor ECG frequently and stop or change therapy if QTc becomes markedly prolonged.
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.
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