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Drug interactions

Chloroquine + Eribulin

Severity: Major

Chloroquine 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

Eribulin can prolong the QT interval, and adding chloroquine increases the risk of ventricular arrhythmia. Patients with electrolyte abnormalities or heart failure are at greater risk.

What this interaction means in plain words

Chloroquine 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.

Chloroquine belongs to Anti Parasitic; Eribulin belongs to Oncology.

Evidence level: Moderate

Why it happens

Additive QT prolongation.

What to do

Avoid if possible. If used together, monitor ECG and 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 Chloroquine with Eribulin?

MediHelp rates the interaction as major. Chloroquine 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. Eribulin can prolong the QT interval, and adding chloroquine increases the risk of ventricular arrhythmia. Patients with electrolyte abnormalities or heart failure are at greater risk.

How serious is the interaction between Chloroquine 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 if possible. If used together, monitor ECG and correct potassium and magnesium before and during treatment.

What other medicines interact with Chloroquine?

MediHelp also lists interactions of Chloroquine with, for example, Cisapride, Dofetilide, Dronedarone. The full list is on the Chloroquine page.

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

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