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Calcium channel blockers

Amlodipine

Also sold as: Norvasc

Prescription neededCalcium channel blockers
Comes as:Tablet

Usual adult dose

Usual adult dose: 5 mg once a day, increased to 10 mg if needed. Start with 2.5 mg in elderly people or those with liver disease.

Your doctor may give you a different dose. Children's doses depend on weight.

Side effects

Common

  • swollen ankles
  • flushing
  • headache
  • dizziness
  • tiredness

Serious — get help

Stop taking it and see a doctor straight away if you notice:

  • chest pain that gets worse
  • fainting
  • severe allergic reaction

Do not take it, or take care, if

  • Very low blood pressure or shock
  • Severe narrowing of the aortic heart valve (use with caution)
  • Liver disease (start with a lower dose)

Interactions

Medicines that can react with this one.

Moderate2 medicinesTake together only with care. Ask your doctor or pharmacist.
  • Clarithromycin

    Clarithromycin raises amlodipine levels and can cause low blood pressure.

  • Simvastatin

    Amlodipine raises simvastatin levels; do not take more than 20 mg simvastatin a day.

Pregnancy

  1. A
  2. B
  3. C
  4. D
  5. X

Category C

A risk to the baby cannot be ruled out. Use only if your doctor says the benefit is greater than the risk.

Generic alternatives

Similar medicines your doctor or pharmacist may offer instead.

  • Nifedipine
  • Diltiazem
  • Verapamil
Check with my other medicines

Always follow your doctor or pharmacistThis page is general information, not a prescription. Do not start, stop or change a medicine on your own.