Drug interactions
Amlodipine-valsartan + Spironolactone
Severity: Major
Amlodipine-valsartan and Spironolactone: 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
Spironolactone antagonizes aldosterone and valsartan blocks the angiotensin II receptor, so both reduce renal potassium excretion. The combination can cause serious hyperkalemia and worsening renal function, especially in heart failure, diabetes or chronic kidney disease.
What this interaction means in plain words
Amlodipine-valsartan and Spironolactone 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.
Amlodipine-valsartan belongs to Cardiovascular; Spironolactone belongs to Cardiovascular.
Why it happens
Additive suppression of the renin-angiotensin-aldosterone system effect on potassium excretion.
What to do
Monitor serum potassium and creatinine at baseline, within the first week or two, and regularly thereafter. Reduce or stop spironolactone if potassium exceeds the accepted limit, and avoid potassium supplements.
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 Amlodipine-valsartan
- Aliskiren + Amlodipine-valsartan Contraindicated
- Amlodipine-valsartan + Sparsentan Contraindicated
- Aldesleukin + Amlodipine-valsartan Major
- Amifostine + Amlodipine-valsartan Major
- Amiloride + Amlodipine-valsartan Major
- Amlodipine-valsartan + Benazepril Major
Other interactions of Spironolactone
- Amiloride + Spironolactone Contraindicated
- Eplerenone + Spironolactone Contraindicated
- Spironolactone + Triamterene Contraindicated
- Abiraterone + Spironolactone Major
- Aceclofenac + Spironolactone Major
- Acemetacin + Spironolactone Major
Frequently asked questions
Can I take Amlodipine-valsartan with Spironolactone?
MediHelp rates the interaction as major. Amlodipine-valsartan and Spironolactone 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. Spironolactone antagonizes aldosterone and valsartan blocks the angiotensin II receptor, so both reduce renal potassium excretion. The combination can cause serious hyperkalemia and worsening renal function, especially in heart failure, diabetes or chronic kidney disease.
How serious is the interaction between Amlodipine-valsartan and Spironolactone?
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 creatinine at baseline, within the first week or two, and regularly thereafter. Reduce or stop spironolactone if potassium exceeds the accepted limit, and avoid potassium supplements.
What other medicines interact with Amlodipine-valsartan?
MediHelp also lists interactions of Amlodipine-valsartan with, for example, Aliskiren, Sparsentan, Aldesleukin. The full list is on the Amlodipine-valsartan page.
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