Drug interactions
Amiloride + Potassium citrate / citric acid
Severity: Major
Amiloride and Potassium citrate / citric acid: major 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
Potassium citrate provides a potassium load while amiloride reduces potassium excretion, so hyperkalemia can develop and may be severe. The risk is greatest with renal impairment or diabetes.
What this interaction means in plain words
Amiloride and Potassium citrate / citric acid can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Why it happens
Supplemental potassium combined with inhibition of renal potassium secretion by amiloride.
What to do
Avoid the combination where possible. If both are needed, monitor serum potassium and renal function closely and adjust the potassium dose.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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Other interactions of Amiloride
- Amiloride + Eplerenone Contraindicated
- Amiloride + Spironolactone Contraindicated
- Amiloride + Triamterene Contraindicated
- Aceclofenac + Amiloride Major
- Acemetacin + Amiloride Major
- Amiloride + Amlodipine-benazepril Major
Frequently asked questions
Can I take Amiloride with Potassium citrate / citric acid?
MediHelp rates the interaction as major. Amiloride and Potassium citrate / citric acid can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Potassium citrate provides a potassium load while amiloride reduces potassium excretion, so hyperkalemia can develop and may be severe. The risk is greatest with renal impairment or diabetes.
How serious is the interaction between Amiloride and Potassium citrate / citric acid?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid the combination where possible. If both are needed, monitor serum potassium and renal function closely and adjust the potassium dose.
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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