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Drug interactions

Benazepril + Hydrochlorothiazide-valsartan

Severity: Major

Benazepril and Hydrochlorothiazide-valsartan: 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 blockade. This raises the risk of hypotension, hyperkalemia and acute kidney injury without clear benefit in most patients.

What this interaction means in plain words

Benazepril and Hydrochlorothiazide-valsartan 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.

Benazepril belongs to Cardiovascular; Hydrochlorothiazide-valsartan belongs to Cardiovascular.

Evidence level: High

Why it happens

Additive inhibition of the renin-angiotensin-aldosterone system at two sites.

What to do

Avoid the combination in most patients and especially in diabetic nephropathy. If it is used, monitor potassium, creatinine and blood pressure 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?

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 Benazepril with Hydrochlorothiazide-valsartan?

MediHelp rates the interaction as major. Benazepril and Hydrochlorothiazide-valsartan 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 blockade. This raises the risk of hypotension, hyperkalemia and acute kidney injury without clear benefit in most patients.

How serious is the interaction between Benazepril and Hydrochlorothiazide-valsartan?

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 in most patients and especially in diabetic nephropathy. If it is used, monitor potassium, creatinine and blood pressure closely.

What other medicines interact with Hydrochlorothiazide-valsartan?

MediHelp also lists interactions of Hydrochlorothiazide-valsartan with, for example, Aliskiren, Dofetilide, Sparsentan. The full list is on the Hydrochlorothiazide-valsartan page.

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