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Drug interactions

Eribulin + Pitolisant

Severity: Major

Eribulin 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 modestly prolong the QT interval and its labeling advises avoiding combination with other QT-prolonging drugs. Eribulin may add to this effect.

What this interaction means in plain words

Eribulin 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.

Eribulin belongs to Oncology; Pitolisant belongs to Central Nervous System.

Evidence level: Low

Why it happens

Additive pharmacodynamic QT prolongation.

What to do

Avoid combined use where possible, or hold pitolisant during eribulin therapy if clinically acceptable. If both are used, 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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Eribulin with Pitolisant?

MediHelp rates the interaction as major. Eribulin 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 modestly prolong the QT interval and its labeling advises avoiding combination with other QT-prolonging drugs. Eribulin may add to this effect.

How serious is the interaction between Eribulin 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 combined use where possible, or hold pitolisant during eribulin therapy if clinically acceptable. If both are used, monitor ECG and electrolytes.

What other medicines interact with Eribulin?

MediHelp also lists interactions of Eribulin with, for example, Adagrasib, Amiodarone, Amisulpride. The full list is on the Eribulin page.

Full monographs, dosing and an interaction checker in the MediHelp app

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