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Drug interactions

Carbenoxolone + Tolmetin

Severity: Moderate

Carbenoxolone and Tolmetin: 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 causes sodium retention and potassium loss through mineralocorticoid-like effects, while NSAIDs also cause fluid retention. Together they may worsen hypertension and edema, with unpredictable potassium effects.

What this interaction means in plain words

Carbenoxolone and Tolmetin 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 causing mineralocorticoid excess, with additive NSAID sodium and water retention.

What to do

Monitor blood pressure, edema and serum potassium. Consider an alternative to one of the agents in patients with hypertension or heart failure.

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 Tolmetin?

MediHelp rates the interaction as moderate. Carbenoxolone and Tolmetin 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 causes sodium retention and potassium loss through mineralocorticoid-like effects, while NSAIDs also cause fluid retention. Together they may worsen hypertension and edema, with unpredictable potassium effects.

How serious is the interaction between Carbenoxolone and Tolmetin?

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, edema and serum potassium. Consider an alternative to one of the agents in patients with hypertension or heart failure.

What other medicines interact with Tolmetin?

MediHelp also lists interactions of Tolmetin with, for example, Ketorolac intranasal, Ketorolac, Aceclofenac. The full list is on the Tolmetin 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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