Drug interactions
Captopril-hydrochlorothiazide + Eprosartan
Severity: Major
Captopril-hydrochlorothiazide and Eprosartan: 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
Combining an ACE inhibitor with an angiotensin receptor blocker produces dual renin-angiotensin system blockade. This raises the risk of hypotension, hyperkalemia and acute kidney injury without clear added benefit in most patients.
What this interaction means in plain words
Captopril-hydrochlorothiazide and Eprosartan 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.
Captopril-hydrochlorothiazide belongs to Cardiovascular; Eprosartan belongs to Cardiovascular.
Why it happens
Additive pharmacodynamic inhibition of the renin-angiotensin-aldosterone system at two points reduces glomerular filtration pressure and aldosterone-mediated potassium excretion.
What to do
Avoid the combination and use a single renin-angiotensin agent. If unavoidable, monitor blood pressure, serum potassium and creatinine closely.
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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Other interactions of Captopril-hydrochlorothiazide
- Aliskiren + Captopril-hydrochlorothiazide Contraindicated
- Captopril-hydrochlorothiazide + Dofetilide Contraindicated
- Captopril-hydrochlorothiazide + Sacubitril / valsartan Contraindicated
- Aceclofenac + Captopril-hydrochlorothiazide Major
- Aldesleukin + Captopril-hydrochlorothiazide Major
- Amifostine + Captopril-hydrochlorothiazide Major
Other interactions of Eprosartan
- Aliskiren + Eprosartan Contraindicated
- Eprosartan + Sparsentan Contraindicated
- Amifostine + Eprosartan Major
- Amiloride + Eprosartan Major
- Amlodipine-benazepril + Eprosartan Major
- Amlodipine-hydrochlorothiazide-valsartan + Eprosartan Major
Frequently asked questions
Can I take Captopril-hydrochlorothiazide with Eprosartan?
MediHelp rates the interaction as major. Captopril-hydrochlorothiazide and Eprosartan 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. Combining an ACE inhibitor with an angiotensin receptor blocker produces dual renin-angiotensin system blockade. This raises the risk of hypotension, hyperkalemia and acute kidney injury without clear added benefit in most patients.
How serious is the interaction between Captopril-hydrochlorothiazide and Eprosartan?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid the combination and use a single renin-angiotensin agent. If unavoidable, monitor blood pressure, serum potassium and creatinine closely.
What other medicines interact with Captopril-hydrochlorothiazide?
MediHelp also lists interactions of Captopril-hydrochlorothiazide with, for example, Aliskiren, Dofetilide, Sacubitril / valsartan. The full list is on the Captopril-hydrochlorothiazide page.
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