Calcium channel blockerPrescription only
Nifedipine
Tablet
Quick Summary
Nifedipine relaxes and widens blood vessels.
High blood pressure
Angina
Medical Uses
High blood pressure: Lowers cardiovascular risk.
Angina: Prevention.
How it's taken
Swallow modified-release tablets whole. 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
Ankle swelling
Common with some types.
Headache and flushing
Especially at first.
Palpitations
Sometimes.
Interactions
Grapefruit juice
Raises levels.
Other blood pressure medicines
Together they can lower blood pressure too much.
Critical Warnings
Chest pain
New or worse chest pain needs urgent care.
Liver problems
Tell your doctor.
Sources and further reading
Last updated 21 October 2026. For more detail, see these trusted health organisations.
- Nifedipine: drug information(opens in a new tab) · MedlinePlus, US National Library of Medicine
- Nifedipine: medicine to treat high blood pressure and angina(opens in a new tab) · NHS