Drug interactions
Pitolisant + Ranolazine
Severity: Major
Pitolisant and Ranolazine: 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 can prolong the QT interval and ranolazine also does so. Combined use may raise the risk of torsades de pointes, particularly in patients with cardiac disease or electrolyte abnormalities.
What this interaction means in plain words
Pitolisant and Ranolazine 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; Ranolazine belongs to Cardiovascular.
Why it happens
Additive pharmacodynamic QT prolongation.
What to do
Avoid if possible; if coadministered, obtain an ECG and monitor 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 Ranolazine
- Adagrasib + Ranolazine Contraindicated
- Amobarbital + Ranolazine Contraindicated
- Apalutamide + Ranolazine Contraindicated
- Butabarbital + Ranolazine Contraindicated
- Carbamazepine + Ranolazine Contraindicated
- Clarithromycin + Ranolazine Contraindicated
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 Ranolazine?
MediHelp rates the interaction as major. Pitolisant and Ranolazine 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 can prolong the QT interval and ranolazine also does so. Combined use may raise the risk of torsades de pointes, particularly in patients with cardiac disease or electrolyte abnormalities.
How serious is the interaction between Pitolisant and Ranolazine?
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 if possible; if coadministered, obtain an ECG and monitor electrolytes.
What other medicines interact with Ranolazine?
MediHelp also lists interactions of Ranolazine with, for example, Adagrasib, Amobarbital, Apalutamide. The full list is on the Ranolazine page.
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