Drug interactions
Amlodipine-hydrochlorothiazide-valsartan + Spironolactone
Severity: Major
Amlodipine-hydrochlorothiazide-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 and valsartan both reduce potassium excretion, so combined use increases the risk of hyperkalemia, particularly in renal impairment, heart failure or diabetes. The thiazide component lowers potassium and may partly offset this, but cannot be relied on.
What this interaction means in plain words
Amlodipine-hydrochlorothiazide-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-hydrochlorothiazide-valsartan belongs to Cardiovascular; Spironolactone belongs to Cardiovascular.
Why it happens
Additive potassium retention from mineralocorticoid receptor antagonism and angiotensin receptor blockade, partly opposed by thiazide kaliuresis.
What to do
Monitor potassium and creatinine at baseline, within the first week or so, and periodically afterward. Avoid potassium supplements and reduce or stop spironolactone if hyperkalemia develops.
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-hydrochlorothiazide-valsartan
- Aliskiren + Amlodipine-hydrochlorothiazide-valsartan Contraindicated
- Amlodipine-hydrochlorothiazide-valsartan + Dofetilide Contraindicated
- Amlodipine-hydrochlorothiazide-valsartan + Sparsentan Contraindicated
- Aceclofenac + Amlodipine-hydrochlorothiazide-valsartan Major
- Aldesleukin + Amlodipine-hydrochlorothiazide-valsartan Major
- Amifostine + Amlodipine-hydrochlorothiazide-valsartan 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-hydrochlorothiazide-valsartan with Spironolactone?
MediHelp rates the interaction as major. Amlodipine-hydrochlorothiazide-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 and valsartan both reduce potassium excretion, so combined use increases the risk of hyperkalemia, particularly in renal impairment, heart failure or diabetes. The thiazide component lowers potassium and may partly offset this, but cannot be relied on.
How serious is the interaction between Amlodipine-hydrochlorothiazide-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 potassium and creatinine at baseline, within the first week or so, and periodically afterward. Avoid potassium supplements and reduce or stop spironolactone if hyperkalemia develops.
What other medicines interact with Amlodipine-hydrochlorothiazide-valsartan?
MediHelp also lists interactions of Amlodipine-hydrochlorothiazide-valsartan with, for example, Aliskiren, Dofetilide, Sparsentan. The full list is on the Amlodipine-hydrochlorothiazide-valsartan page.
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