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Drug interactions

Chloroquine + Indapamide

Severity: Moderate

Chloroquine and Indapamide: 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

Indapamide can cause hypokalemia and hypomagnesemia and has been associated with QT prolongation, while chloroquine independently prolongs QT. The combination may increase the risk of torsades de pointes.

What this interaction means in plain words

Chloroquine and Indapamide 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; Indapamide belongs to Cardiovascular.

Evidence level: Moderate

Why it happens

Additive QT prolongation, with diuretic-induced electrolyte loss increasing arrhythmic risk.

What to do

Check potassium and magnesium before and during co-therapy and correct deficits. Obtain a baseline ECG and monitor QTc.

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 Indapamide?

MediHelp rates the interaction as moderate. Chloroquine and Indapamide 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. Indapamide can cause hypokalemia and hypomagnesemia and has been associated with QT prolongation, while chloroquine independently prolongs QT. The combination may increase the risk of torsades de pointes.

How serious is the interaction between Chloroquine and Indapamide?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Check potassium and magnesium before and during co-therapy and correct deficits. Obtain a baseline ECG and monitor QTc.

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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