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Drug interactions

Benazepril + Enalapril-hydrochlorothiazide

Severity: Major

Benazepril and Enalapril-hydrochlorothiazide: 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 are ACE inhibitors, so this is therapeutic duplication. Dual ACE inhibition increases hypotension, hyperkalemia and renal impairment without added benefit.

What this interaction means in plain words

Benazepril and Enalapril-hydrochlorothiazide 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; Enalapril-hydrochlorothiazide belongs to Cardiovascular.

Evidence level: High

Why it happens

Duplicate ACE inhibition produces additive renin-angiotensin system blockade.

What to do

Avoid combining two ACE inhibitors and use a single agent. If duplication occurs, stop one and monitor blood pressure, potassium and creatinine.

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 Enalapril-hydrochlorothiazide?

MediHelp rates the interaction as major. Benazepril and Enalapril-hydrochlorothiazide 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 are ACE inhibitors, so this is therapeutic duplication. Dual ACE inhibition increases hypotension, hyperkalemia and renal impairment without added benefit.

How serious is the interaction between Benazepril and Enalapril-hydrochlorothiazide?

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 combining two ACE inhibitors and use a single agent. If duplication occurs, stop one and monitor blood pressure, potassium and creatinine.

What other medicines interact with Enalapril-hydrochlorothiazide?

MediHelp also lists interactions of Enalapril-hydrochlorothiazide with, for example, Aliskiren, Dofetilide, Protein a column. The full list is on the Enalapril-hydrochlorothiazide page.

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