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What does it do?

Disopyramide is used to treat and prevent irregular heartbeats.

How should you take it?

Take disopyramide regularly at the same time every day. Take with a glass of water.

What if you forget a dose?

Take the missed dose as soon as possible. If it is close to the time for your next dose, skip the missed dose and carry on as normal. Do not take two doses at the same time.

Can you take other medicines?

Several medicines can alter the effects of disopyramide, sometimes with severe results. Please talk to your pharmacist or doctor before using any over-the-counter medicines, vitamins, herbal products or recreational drugs.

What side effects might you notice?

Side EffectsRecommended action

Change in heartbeat, chest pain, fainting

Fever, sore throat, tiredness, aches and pains

Easy/unusual bruising or bleeding

Tell your doctor immediately

Dry mouth or throat, dry eyes, blurred vision, trouble peeing

Swollen feet or legs, short of breath

Skin rash, itching

Tell your doctor

Nausea, vomiting, constipation or diarrhoea, weight gain, farting, change of appetite

Headache, dizziness, tiredness or weakness, anxiety

Changes in sexual function

Muscle weakness or pain

Tell your doctor if troublesome

If you notice any other effects, discuss them with your doctor or pharmacist.

Other information:

  • Tell your doctor if you have liver, prostate, kidney or other heart problems, or if you have trouble peeing.
  • Tell your doctor if you have diabetes, glaucoma, or a chronic muscle condition (e.g. myasthenia gravis).
  • Tell your doctor if you are pregnant, planning to become pregnant, or breastfeeding.
  • Disopyramide may make you dizzy or sleepy and make it dangerous to drive, operate machinery or do other activities that require you to be alert. Limit alcohol intake because it can increase these effects.

This leaflet contains important, but not all, information about this medicine.

Prepared by the PILs Committee at Christchurch Hospital, Canterbury District Health Board, New Zealand. March 2018

For more general information about this sheet and its contents, see: What does a My Medicines sheet cover?

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About My Medicines

My Medicines Patient Information Leaflets (PILs) contain important, but not all, information about the medicines they describe.

For more information about the sheets, see: What does a My Medicines sheet cover?

My Medicines is developed by a team at the Canterbury District Health Board. Our team is made up of doctors, pharmacists, and a non-medical person to help us keep to plain language. We also discuss our information with specialist health professionals or groups when needed