Drug interactions
Eplerenone + Quinapril
Severity: Major
Eplerenone and Quinapril: 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
Both drugs reduce potassium excretion, so together they can cause clinically significant hyperkalemia. The risk is greater in renal impairment, diabetes, older age or with potassium supplements.
What this interaction means in plain words
Eplerenone and Quinapril 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
ACE inhibition lowers aldosterone production while eplerenone blocks the aldosterone receptor, giving additive potassium retention.
What to do
Check serum potassium and creatinine at baseline, within the first week, and periodically afterwards. Stop potassium supplements and reduce or stop eplerenone if potassium rises above the accepted limit.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Eplerenone and Quinapril, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 7 days on the web. No card needed.
Other interactions of Eplerenone
- Amiloride + Eplerenone Contraindicated
- Atazanavir + Eplerenone Contraindicated
- Clarithromycin + Eplerenone Contraindicated
- Cobicistat + Eplerenone Contraindicated
- Elvitegravir / cobicistat / emtricitabine / tenofovir df + Eplerenone Contraindicated
- Ensitrelvir + Eplerenone Contraindicated
Frequently asked questions
Can I take Eplerenone with Quinapril?
MediHelp rates the interaction as major. Eplerenone and Quinapril 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. Both drugs reduce potassium excretion, so together they can cause clinically significant hyperkalemia. The risk is greater in renal impairment, diabetes, older age or with potassium supplements.
How serious is the interaction between Eplerenone and Quinapril?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Check serum potassium and creatinine at baseline, within the first week, and periodically afterwards. Stop potassium supplements and reduce or stop eplerenone if potassium rises above the accepted limit.
What other medicines interact with Eplerenone?
MediHelp also lists interactions of Eplerenone with, for example, Amiloride, Atazanavir, Clarithromycin. The full list is on the Eplerenone 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.
