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Drug interactions

Enalapril + Furosemide

Severity: Moderate

Enalapril and Furosemide: 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

Adding enalapril to a patient on furosemide may cause abrupt hypotension and reduced renal function, especially in volume-depleted patients or those with renal artery stenosis. The combination is widely used and beneficial when initiated carefully.

What this interaction means in plain words

Enalapril and Furosemide 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; Furosemide belongs to Cardiovascular.

Evidence level: High

Why it happens

Additive pharmacodynamic effect: diuretic-induced volume depletion and renin activation combined with ACE inhibition reduces blood pressure and glomerular filtration pressure.

What to do

Start enalapril at a low dose and consider reducing or holding the furosemide dose beforehand. Check blood pressure, creatinine and potassium within one to two 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 Furosemide?

MediHelp rates the interaction as moderate. Enalapril and Furosemide 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. Adding enalapril to a patient on furosemide may cause abrupt hypotension and reduced renal function, especially in volume-depleted patients or those with renal artery stenosis. The combination is widely used and beneficial when initiated carefully.

How serious is the interaction between Enalapril and Furosemide?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Start enalapril at a low dose and consider reducing or holding the furosemide dose beforehand. Check blood pressure, creatinine and potassium within one to two weeks.

What other medicines interact with Furosemide?

MediHelp also lists interactions of Furosemide with, for example, Amifostine, Amikacin, Carbenoxolone. The full list is on the Furosemide page.

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