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Drug interactions

Cyclopenthiazide + Indapamide

Severity: Moderate

Cyclopenthiazide 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

Two thiazide-type diuretics together add little antihypertensive benefit and increase the risk of hypokalemia, hyponatremia and dehydration.

What this interaction means in plain words

Cyclopenthiazide 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.

Evidence level: Moderate

Why it happens

Both inhibit the distal tubular sodium-chloride cotransporter, producing additive electrolyte loss.

What to do

Avoid duplicate thiazide therapy and use a single agent. If both have been given, check electrolytes and renal function.

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 Cyclopenthiazide with Indapamide?

MediHelp rates the interaction as moderate. Cyclopenthiazide 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. Two thiazide-type diuretics together add little antihypertensive benefit and increase the risk of hypokalemia, hyponatremia and dehydration.

How serious is the interaction between Cyclopenthiazide 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: Avoid duplicate thiazide therapy and use a single agent. If both have been given, check electrolytes and renal function.

What other medicines interact with Indapamide?

MediHelp also lists interactions of Indapamide with, for example, Adagrasib, Amifostine, Amiodarone. The full list is on the Indapamide 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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