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Drug interactions

Carbenoxolone + Carvedilol

Severity: Moderate

Carbenoxolone and Carvedilol: 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 causes sodium and water retention, hypertension and potassium loss. These effects can counteract the blood pressure lowering of carvedilol and the hypokalemia may add to arrhythmia risk in cardiac patients.

What this interaction means in plain words

Carbenoxolone and Carvedilol 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

Pharmacodynamic antagonism through carbenoxolone-induced mineralocorticoid effects (fluid retention, hypokalemia) opposing antihypertensive action.

What to do

Monitor blood pressure, fluid status and serum potassium during combined use. Correct hypokalemia and consider an alternative to carbenoxolone if hypertension or edema develops.

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 Carbenoxolone with Carvedilol?

MediHelp rates the interaction as moderate. Carbenoxolone and Carvedilol 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 causes sodium and water retention, hypertension and potassium loss. These effects can counteract the blood pressure lowering of carvedilol and the hypokalemia may add to arrhythmia risk in cardiac patients.

How serious is the interaction between Carbenoxolone and Carvedilol?

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 blood pressure, fluid status and serum potassium during combined use. Correct hypokalemia and consider an alternative to carbenoxolone if hypertension or edema develops.

What other medicines interact with Carvedilol?

MediHelp also lists interactions of Carvedilol with, for example, Amifostine, Amiodarone, Arformoterol. The full list is on the Carvedilol page.

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