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Drug interactions

Lisinopril + Potassium citrate-citric acid

Severity: Moderate

Lisinopril and Potassium citrate-citric acid: 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

Lisinopril lowers aldosterone and thus potassium excretion, while potassium citrate adds potassium. Hyperkalemia can develop, with higher risk in renal impairment, diabetes and heart failure.

What this interaction means in plain words

Lisinopril and Potassium citrate-citric acid 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.

Lisinopril belongs to Cardiovascular; Potassium citrate-citric acid belongs to Gastrointestinal Tract.

Evidence level: High

Why it happens

ACE inhibition decreases aldosterone, reducing renal potassium excretion alongside the supplemental potassium.

What to do

Check potassium and creatinine at baseline and periodically. Decrease or stop the potassium salt if potassium increases.

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 Lisinopril with Potassium citrate-citric acid?

MediHelp rates the interaction as moderate. Lisinopril and Potassium citrate-citric acid 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. Lisinopril lowers aldosterone and thus potassium excretion, while potassium citrate adds potassium. Hyperkalemia can develop, with higher risk in renal impairment, diabetes and heart failure.

How serious is the interaction between Lisinopril and Potassium citrate-citric acid?

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 potassium and creatinine at baseline and periodically. Decrease or stop the potassium salt if potassium increases.

What other medicines interact with Potassium citrate-citric acid?

MediHelp also lists interactions of Potassium citrate-citric acid with, for example, Amiloride, Eplerenone, Finerenone. The full list is on the Potassium citrate-citric acid page.

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

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