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Drug interactions

Carbenoxolone + Formoterol-mometasone

Severity: Moderate

Carbenoxolone and Formoterol-mometasone: 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 potassium loss and sodium retention. Formoterol shifts potassium into cells, and inhaled corticosteroids may contribute slightly. Together they can lead to clinically relevant hypokalemia, raising arrhythmia risk.

What this interaction means in plain words

Carbenoxolone and Formoterol-mometasone 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

Additive hypokalemia from renal potassium wasting (carbenoxolone) and beta-2 mediated intracellular potassium shift (formoterol).

What to do

Monitor serum potassium periodically and replace potassium as needed. Take extra care in patients with heart disease or on other potassium-lowering drugs.

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 Formoterol-mometasone?

MediHelp rates the interaction as moderate. Carbenoxolone and Formoterol-mometasone 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 potassium loss and sodium retention. Formoterol shifts potassium into cells, and inhaled corticosteroids may contribute slightly. Together they can lead to clinically relevant hypokalemia, raising arrhythmia risk.

How serious is the interaction between Carbenoxolone and Formoterol-mometasone?

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 periodically and replace potassium as needed. Take extra care in patients with heart disease or on other potassium-lowering drugs.

What other medicines interact with Formoterol-mometasone?

MediHelp also lists interactions of Formoterol-mometasone with, for example, Amiodarone, Amisulpride, Amoxapine. The full list is on the Formoterol-mometasone page.

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