Flecainide is used to treat and prevent irregular heartbeats.
Take flecainide regularly at the same time every day. Take with a glass of water.
Swallow controlled release (CR) flecainide tablets whole. Do not crush or chew them.
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.
Flecainide can react with many medicines, sometimes with severe results.
Tell your pharmacist or doctor about all medicines or treatments that you may be taking, including vitamins, herbal products or recreational drugs.
|Side Effects||Recommended action|
Change in heartbeat, chest pain, fainting
Increased risk of infection - symptoms may include: fever, chills, sore throat, aches and pains, tiredness, pain when peeing, mouth ulcers
Easy/unusual bruising or bleeding
|Tell your doctor immediately|
Changes in vision
Tingling or numbness
Loss of co-ordination/walking or handwriting problems, tremor
Swollen feet or legs, short of breath
|Tell your doctor|
Nausea, vomiting, constipation or diarrhoea, abdominal pain, change of appetite
Ringing in the ears
Trouble sleeping, anxiety, low mood
|Tell your doctor if troublesome|
If you notice any other effects, discuss them with your doctor or pharmacist.
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. January 2020
For more general information about this sheet and its contents, see: What does a My Medicines sheet cover?
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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