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Drug interactions

Amiodarone + Eribulin

Severity: Major

Amiodarone and Eribulin: 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

Both drugs can prolong the QT interval, so giving them together may produce additive prolongation and raise the risk of torsades de pointes. Eribulin labeling recommends ECG monitoring in patients with risk factors for QT prolongation.

What this interaction means in plain words

Amiodarone and Eribulin 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.

Amiodarone belongs to Cardiovascular; Eribulin belongs to Oncology.

Evidence level: Moderate

Why it happens

Additive pharmacodynamic QT prolongation through delayed cardiac repolarization.

What to do

Avoid the combination where an alternative exists; if both are required, obtain a baseline ECG and monitor it periodically. Correct potassium and magnesium before and during treatment.

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 Amiodarone with Eribulin?

MediHelp rates the interaction as major. Amiodarone and Eribulin 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, so giving them together may produce additive prolongation and raise the risk of torsades de pointes. Eribulin labeling recommends ECG monitoring in patients with risk factors for QT prolongation.

How serious is the interaction between Amiodarone and Eribulin?

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 an alternative exists; if both are required, obtain a baseline ECG and monitor it periodically. Correct potassium and magnesium before and during treatment.

What other medicines interact with Amiodarone?

MediHelp also lists interactions of Amiodarone with, for example, Amisulpride, Arsenic trioxide, Dofetilide. The full list is on the Amiodarone page.

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