Flecainide is an antiarrhythmic medication used to treat serious heart rhythm problems. It is available only with a doctors prescription and comes in different dosage forms. Here are some details about flecainides ingredients, positive and negative effects, and side effects:
Ingredients:
- Flecainide is the active ingredient in this medication.
- Some non-prescription products may contain inactive ingredients that can cause allergic reactions or other problems.
Positive effects:
- Flecainide is used to treat serious heart rhythm problems.
- It is indicated to prevent supraventricular arrhythmias and ventricular arrhythmias.
- In the United States, it is also indicated to prevent paroxysmal atrial fibrillation and flutter.
Negative effects:
- Flecainide may cause new or worsen existing heart rhythm problems when used.
- It has been shown to cause severe problems in some patients.
- Flecainide may cause a condition that affects the heart rhythm (QT prolongation) .
- The risk of QT prolongation may be increased if you have certain medical conditions or are taking other drugs that may cause QT prolongation.
- Flecainide is associated with some health risks, including possible allergic reactions, heart attack, new or worse arrhythmia, heart failure, liver problems, and kidney problems.
Side effects:
- Common side effects of flecainide may include constipation, dizziness, headaches, stomach pain, tremors, vision changes, and weakness.
- Serious side effects of flecainide may include chest pain, confusion, cough that won’t go away, extreme fatigue, fainting, fast or pounding heartbeat, flu-like symptoms, nausea or loss of appetite, shortness of breath, swelling in the hands, feet or lower legs, sudden weight gain, unusual bleeding or bruising, and yellowish skin or eyes.
- Other side effects not listed may also occur in some patients.
- Before taking flecainide, tell your doctor or pharmacist if you are allergic to it or if you have any other allergies.
- Flecainide may cause some people to become dizzy, lightheaded, or less a...
