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Drug interactions

Amiloride + Carbenoxolone

Severity: Moderate

Amiloride and Carbenoxolone: 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

Carbenoxolone has mineralocorticoid-like activity that promotes potassium loss and sodium and fluid retention, whereas amiloride conserves potassium. The two effects partly offset one another, but carbenoxolone also tends to raise blood pressure and can blunt the diuretic and antihypertensive benefit of amiloride.

What this interaction means in plain words

Amiloride and Carbenoxolone 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: Low

Why it happens

Carbenoxolone inhibits 11-beta-hydroxysteroid dehydrogenase, producing mineralocorticoid-like sodium retention and potassium wasting that opposes amiloride's ENaC blockade.

What to do

Monitor serum potassium, blood pressure and fluid status when the two are combined. Adjust the doses based on potassium results and watch for edema or loss of blood pressure control.

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 Carbenoxolone?

MediHelp rates the interaction as moderate. Amiloride and Carbenoxolone 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. Carbenoxolone has mineralocorticoid-like activity that promotes potassium loss and sodium and fluid retention, whereas amiloride conserves potassium. The two effects partly offset one another, but carbenoxolone also tends to raise blood pressure and can blunt the diuretic and antihypertensive benefit of amiloride.

How serious is the interaction between Amiloride and Carbenoxolone?

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, blood pressure and fluid status when the two are combined. Adjust the doses based on potassium results and watch for edema or loss of blood pressure control.

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.

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