Drug interactions
Irbesartan + Potassium citrate / citric acid
Severity: Major
Irbesartan and Potassium citrate / citric acid: major interaction.
Last updated Sources: US FDA label
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
Irbesartan reduces renal potassium excretion, and potassium citrate supplies additional potassium. Together they can cause hyperkalemia, especially with renal impairment, diabetes or other potassium-raising drugs.
What this interaction means in plain words
Irbesartan 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
Additive increase in serum potassium: potassium load plus ARB-induced reduction in aldosterone-mediated potassium excretion.
What to do
Monitor serum potassium and renal function at initiation and periodically thereafter. Reduce or stop the potassium supplement if potassium rises.
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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References
Other interactions of Irbesartan
- Aliskiren + Irbesartan Contraindicated
- Irbesartan + Sparsentan Contraindicated
- Amifostine + Irbesartan Major
- Amiloride + Irbesartan Major
- Amlodipine-benazepril + Irbesartan Major
- Amlodipine-hydrochlorothiazide-valsartan + Irbesartan Major
Frequently asked questions
Can I take Irbesartan with Potassium citrate / citric acid?
MediHelp rates the interaction as major. Irbesartan 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. Irbesartan reduces renal potassium excretion, and potassium citrate supplies additional potassium. Together they can cause hyperkalemia, especially with renal impairment, diabetes or other potassium-raising drugs.
How serious is the interaction between Irbesartan 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: Monitor serum potassium and renal function at initiation and periodically thereafter. Reduce or stop the potassium supplement if potassium rises.
What other medicines interact with Irbesartan?
MediHelp also lists interactions of Irbesartan with, for example, Aliskiren, Sparsentan, Amifostine. The full list is on the Irbesartan page.
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