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Drug interactions

Amiloride + Labetalol

Severity: Moderate

Amiloride and Labetalol: 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

Beta-blockers can modestly raise serum potassium, adding to the potassium retention caused by amiloride. Clinically significant hyperkalemia is uncommon but more likely with renal impairment.

What this interaction means in plain words

Amiloride and Labetalol 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.

Amiloride belongs to Cardiovascular; Labetalol belongs to Cardiovascular.

Evidence level: Low

Why it happens

Beta blockade reduces cellular potassium uptake and renin release, adding to amiloride's renal potassium retention.

What to do

Monitor serum potassium and renal function, especially at initiation.

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 Amiloride with Labetalol?

MediHelp rates the interaction as moderate. Amiloride and Labetalol 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. Beta-blockers can modestly raise serum potassium, adding to the potassium retention caused by amiloride. Clinically significant hyperkalemia is uncommon but more likely with renal impairment.

How serious is the interaction between Amiloride and Labetalol?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor serum potassium and renal function, especially at initiation.

What other medicines interact with Amiloride?

MediHelp also lists interactions of Amiloride with, for example, Eplerenone, Spironolactone, Triamterene. The full list is on the Amiloride 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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