ACE inhibitorPrescription only

Enalapril

Tablet

Quick Summary

Enalapril relaxes blood vessels and reduces strain on the heart.

High blood pressure
Heart failure
After a heart attack

Medical Uses

High blood pressure: Lowers cardiovascular risk.
Heart failure: Improves symptoms and survival.
After a heart attack: Protects the heart.

How it's taken

Usually taken once or twice a day at the same times each day.

Keep taking it even if you feel well, and don't stop suddenly without talking to your doctor.

Your doctor decides the right dose for you and how long to take it.

Your doctor decides the right dose for you. Follow their instructions and the label.

Common Side Effects

Dry cough

Common; tell your doctor if troublesome.

Dizziness

Especially at first.

Raised potassium

Checked by blood tests.

Interactions

Potassium supplements

Can raise potassium too much.

Anti-inflammatory painkillers

Such as ibuprofen can reduce the effect and affect the kidneys.

Lithium

Levels can rise.

Critical Warnings

Not in pregnancy

Black Box Warning: Can harm an unborn baby.

Swelling of face or throat

Black Box Warning: Angioedema: emergency.

Kidney checks

Regular blood tests.

Sources and further reading

Last updated 21 October 2026. For more detail, see these trusted health organisations.

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