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Drug interactions

Enalapril + Ethacrynic acid

Severity: Moderate

Enalapril and Ethacrynic acid: moderate 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

Ethacrynic acid is a potent loop diuretic that causes volume depletion, which can lead to marked first-dose hypotension and acute kidney injury when enalapril is started or doses raised.

What this interaction means in plain words

Enalapril and Ethacrynic acid can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.

Enalapril belongs to Cardiovascular; Ethacrynic acid belongs to Cardiovascular.

Evidence level: High

Why it happens

Diuretic-induced volume depletion makes blood pressure and glomerular filtration dependent on angiotensin II, which enalapril blocks.

What to do

Consider reducing or holding the diuretic before starting enalapril, begin with a low dose, and check blood pressure, creatinine and potassium within the first weeks.

What to ask your pharmacist

  • Should I take them at different times of day?
  • Does the dose of either medicine need to change?
  • Is there anything I should avoid, such as alcohol or certain foods, while on both?

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 Enalapril with Ethacrynic acid?

MediHelp rates the interaction as moderate. Enalapril and Ethacrynic acid can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Ethacrynic acid is a potent loop diuretic that causes volume depletion, which can lead to marked first-dose hypotension and acute kidney injury when enalapril is started or doses raised.

How serious is the interaction between Enalapril and Ethacrynic acid?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Consider reducing or holding the diuretic before starting enalapril, begin with a low dose, and check blood pressure, creatinine and potassium within the first weeks.

What other medicines interact with Enalapril?

MediHelp also lists interactions of Enalapril with, for example, Aliskiren, Protein a column, Sacubitril / valsartan. The full list is on the Enalapril page.

Full monographs, dosing and an interaction checker in the MediHelp app

Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.

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