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Drug interactions

Chloroquine + Ezogabine

Severity: Moderate

Chloroquine and Ezogabine: moderate 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 combined use may add to the risk of ventricular arrhythmia. Ezogabine has also been withdrawn from the market in many regions, limiting practical relevance.

What this interaction means in plain words

Chloroquine and Ezogabine can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.

Chloroquine belongs to Anti Parasitic; Ezogabine belongs to Central Nervous System.

Evidence level: Low

Why it happens

Additive QT prolongation.

What to do

Obtain a baseline ECG and monitor QTc, and correct electrolyte disturbances. Consider an alternative agent if QTc lengthens significantly.

What to ask your pharmacist

  • Should I take them at different times of day?
  • Does the dose of either medicine need to change?
  • Is there anything I should avoid, such as alcohol or certain foods, while on both?

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 Ezogabine?

MediHelp rates the interaction as moderate. Chloroquine and Ezogabine can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Both drugs can prolong the QT interval, so combined use may add to the risk of ventricular arrhythmia. Ezogabine has also been withdrawn from the market in many regions, limiting practical relevance.

How serious is the interaction between Chloroquine and Ezogabine?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Obtain a baseline ECG and monitor QTc, and correct electrolyte disturbances. Consider an alternative agent if QTc lengthens significantly.

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

Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.

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