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All price changes →Indications & Uses
Flecainide Acetate tablets belong to a group of medicines called anti-arrhythmics, which work by controlling the rate and rhythm of the heart. Doctors use Flecainide Acetate to treat these conditions: arrhythmias (irregular heart beat), tachycardia (heart beating too fast) and atrial fibrillation (rapid contractions of muscles in the heart). Your doctor needs to treat these conditions quickly and effectively so that more serious heart problems don't develop.
Pharmacology
Flecainide blocks the fast inward sodium channels and then unbinds from them slowly during diastole, which prolongs the refractory period of the heart. The same blockade shortens the action potential in the Purkinjie fibers.
Flecainide also stops the delayed rectifier potassium channels from opening. This lengthens the action potential in ventricular and atrial muscle fibers. It blocks ryanodine receptor opening as well, so less calcium is released from the sarcoplasmic reticulum, and that reduces depolarization of the cells.
Dosage Reference
Reference Information Only
Dosages shown are general references from official sources. Always consult your doctor or pharmacist for personalized dosing.
Adults:
Supraventricular arrhythmias (an irregular heartbeat that starts in the upper chambers of your heart): the recommended dose is one 50 mg tablet twice a day. Your doctor may prescribe up to a total dose of 300 mg daily.
Ventricular arrhythmias (an irregular heartbeat that starts in the lower chambers of your heart): the recommended dose is one 100 mg tablet twice a day. Your doctor may prescribe up to a total dose of 400 mg daily.
If you are elderly, or have kidney or heart problems, the doctor may tell you to take a lower dose.
While you are taking this medicine, your doctor may ask you to have check-ups. These are to make sure the medicine is working properly and that the dose is right for you.
Use in Children: Flecainide Acetate tablets are not recommended for children under 12 years of age. However, dairy products such as milk, infant formula and possibly yoghurt may reduce how much flecainide acetate is absorbed in children and infants.
Side Effects
Some side effects of flecainide acetate could be serious. If you have any of the ones listed below, get medical help immediately. Common side effects (may affect up to 1 in 10 people) are a change in your heartbeat, so that it starts to pound or gets faster or slower, chest pain, becoming breathless or having other breathing problems, a fever, flushing or sweating, and fainting or feeling faint. Rare side effects (may affect up to 1 in 1,000 people) are ringing in your ears, your skin and eyes starting to go yellow (jaundice), and fits (convulsions). Other side effects, where how often they happen is unknown, are heart attack and cardiac failure/arrest (loss of breathing, and consciousness and loss of heart function).
Cautions & Contraindications
Warnings & Precautions
Before you start taking Flecainide Acetate tablets, your doctor may check that your fluid levels are correct. They may also check how well your liver and kidneys are working. Warnings and precautions Talk to your doctor or pharmacist before you take Flecainide Acetate tablets if you: have high blood pressure, have angina (chest pains), have heart disease, have kidney disease or kidney problems, have liver disease or liver problems, or wear a pacemaker.
Contraindications
Do not take Flecainide Acetate tablets if you are allergic to flecainide acetate or any of the other ingredients of this medicine. You should also not take them if you have heart failure, or cardiogenic shock (your heart is unable to pump as much blood as your body needs). The same applies if you have heart block (your heart misses beats), or long-standing atrial fibrillation (rapid contractions of muscles in the heart). Don't take flecainide if you have or have ever had any heart problems, including problems with the valves in your heart or conduction problems. It is also not for people with sinus node dysfunction (a specific condition where your heart beats abnormally), or those who have had a myocardial infarction (heart attack). Another condition on the list is Brugada Syndrome, a genetic disease that causes severe disturbances of the rhythm of the heart and may lead to sudden death in apparently healthy people. Finally, do not take these tablets if you are pregnant or breast-feeding.
Pregnancy & Breastfeeding
If you are pregnant, breast-feeding, think you might be pregnant or are planning to have a baby, talk to your doctor or pharmacist before you take Flecainide Acetate.
⚠️ Talk to your doctor before taking any medicine during pregnancy or while breastfeeding.
Storage
Store Flecainide Acetate below 30°C, and keep it away from light and moisture. Keep it out of the reach of children.
Drug Interactions
Common questions about Flecard 50 mg
What is Flecard 50 mg Tablet?
Flecard 50 mg Tablet is a medicine that contains Flecainide Acetate. It is made by Unimed Unihealth Pharmaceuticals Ltd.
What is Flecard used for?
Flecainide Acetate tablets belong to a group of medicines called anti-arrhythmics, which work by controlling the rate and rhythm of the heart. Doctors use Flecainide Acetate to treat these conditions: arrhythmias (irregular heart beat), tachycardia (heart beating too fast) and atrial fibrillation (rapid contractions of muscles in the heart).
What are the side effects of Flecard?
Some side effects of flecainide acetate could be serious. If you have any of the ones listed below, get medical help immediately.
Can I take Flecard during pregnancy or while breastfeeding?
If you are pregnant, breast-feeding, think you might be pregnant or are planning to have a baby, talk to your doctor or pharmacist before you take Flecainide Acetate. Talk to your doctor before taking any medicine during pregnancy or while breastfeeding.
How should I store Flecard?
Store Flecainide Acetate below 30°C, and keep it away from light and moisture. Keep it out of the reach of children.
Can I take other medicines with Flecard?
Some medicines can interact with Flecainide Acetate, for example: Mirabegron, Terbinafine Hydrochloride, Amiodarone Hydrochloride, Clozapine, Bicarbonate Component [HCO3 Hemodialysis Solution], Carbamazepine. Tell your doctor or pharmacist about every medicine you take.
Is there a cheaper medicine with the same ingredient?
Flecard is already among the lowest-priced brands of Flecainide Acetate at this strength.
Do I need a prescription for Flecard?
Flecard is a prescription (Rx) medicine. Take it as your doctor advises.