Drug interactions
Pitolisant + Sunitinib
Severity: Major
Pitolisant and Sunitinib: major 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
Pitolisant prolongs the QT interval modestly and labeling advises avoiding it with other QT-prolonging drugs. Adding sunitinib increases the risk of ventricular arrhythmias.
What this interaction means in plain words
Pitolisant and Sunitinib 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.
Pitolisant belongs to Central Nervous System; Sunitinib belongs to Oncology.
Why it happens
Additive QTc prolongation.
What to do
Avoid the combination where possible. If both are needed, monitor ECG and electrolytes.
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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Other interactions of Sunitinib
- Adagrasib + Sunitinib Major
- Amiodarone + Sunitinib Major
- Amisulpride + Sunitinib Major
- Anagrelide + Sunitinib Major
- Apalutamide + Sunitinib Major
- Arsenic trioxide + Sunitinib Major
Other interactions of Pitolisant
- Alfuzosin + Pitolisant Major
- Amiodarone + Pitolisant Major
- Amisulpride + Pitolisant Major
- Anagrelide + Pitolisant Major
- Asenapine + Pitolisant Major
- Bupropion + Pitolisant Major
Frequently asked questions
Can I take Pitolisant with Sunitinib?
MediHelp rates the interaction as major. Pitolisant and Sunitinib 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. Pitolisant prolongs the QT interval modestly and labeling advises avoiding it with other QT-prolonging drugs. Adding sunitinib increases the risk of ventricular arrhythmias.
How serious is the interaction between Pitolisant and Sunitinib?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid the combination where possible. If both are needed, monitor ECG and electrolytes.
What other medicines interact with Sunitinib?
MediHelp also lists interactions of Sunitinib with, for example, Adagrasib, Amiodarone, Amisulpride. The full list is on the Sunitinib page.
Full monographs, dosing and an interaction checker in the MediHelp app
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