Drug interactions
Levofloxacin + Pitolisant
Severity: Major
Levofloxacin and Pitolisant: 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 levofloxacin has a similar effect. The combination may increase the risk of torsades de pointes, particularly in patients with cardiac risk factors.
What this interaction means in plain words
Levofloxacin and Pitolisant 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.
Levofloxacin belongs to Anti Bacterial; Pitolisant belongs to Central Nervous System.
Why it happens
Additive QT interval prolongation.
What to do
Avoid the combination where possible, or interrupt pitolisant during a short antibiotic course. If coadministered, 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 Levofloxacin
- Dronedarone + Levofloxacin Contraindicated
- Ibutilide + Levofloxacin Contraindicated
- Levofloxacin + Thioridazine Contraindicated
- Levofloxacin + Vandetanib Contraindicated
- Levofloxacin + Ziprasidone Contraindicated
- Adagrasib + Levofloxacin 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 Levofloxacin with Pitolisant?
MediHelp rates the interaction as major. Levofloxacin and Pitolisant 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 levofloxacin has a similar effect. The combination may increase the risk of torsades de pointes, particularly in patients with cardiac risk factors.
How serious is the interaction between Levofloxacin and Pitolisant?
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, or interrupt pitolisant during a short antibiotic course. If coadministered, monitor ECG and electrolytes.
What other medicines interact with Levofloxacin?
MediHelp also lists interactions of Levofloxacin with, for example, Dronedarone, Ibutilide, Thioridazine. The full list is on the Levofloxacin page.
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