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Drug interactions

Indomethacin + Potassium citrate

Severity: Moderate

Indomethacin and Potassium citrate: 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

Indomethacin is notably associated with hyperkalemia through reduced renal potassium excretion, and potassium citrate adds to this risk. Elderly and renally impaired patients are particularly susceptible.

What this interaction means in plain words

Indomethacin and Potassium citrate 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.

Indomethacin belongs to Musculoskeletal; Potassium citrate belongs to Gastrointestinal Tract.

Evidence level: Moderate

Why it happens

Strong inhibition of renal prostaglandins suppresses renin and aldosterone, reducing potassium excretion.

What to do

Check serum potassium and renal function at baseline and during co-therapy. Reduce the supplement or stop indomethacin if hyperkalemia occurs.

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 Indomethacin with Potassium citrate?

MediHelp rates the interaction as moderate. Indomethacin and Potassium citrate 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. Indomethacin is notably associated with hyperkalemia through reduced renal potassium excretion, and potassium citrate adds to this risk. Elderly and renally impaired patients are particularly susceptible.

How serious is the interaction between Indomethacin and Potassium citrate?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Check serum potassium and renal function at baseline and during co-therapy. Reduce the supplement or stop indomethacin if hyperkalemia occurs.

What other medicines interact with Potassium citrate?

MediHelp also lists interactions of Potassium citrate with, for example, Triamterene, Amiloride, Amlodipine-benazepril. The full list is on the Potassium citrate page.

Full monographs, dosing and an interaction checker in the MediHelp app

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