Information, Symptoms, Treatments and Resources

Pur07960flecainide 150 mg Tab
Amn06410flecainide 50 mg Tab
Brr08600flecainide 100 mg Tab
Rox00120flecainide 150 mg Tab
Amn06420flecainide 100 mg Tab
Tev08610flecainide 150 mg Tab
Pur07940flecainide 50 mg Tab
Amn06430flecainide 150 mg Tab
Rox00100flecainide 50 mg Tab
Pur07950flecainide 100 mg Tab


This medication is used to treat certain types of serious (possibly fatal) irregular heartbeat (such as persistent ventricular tachycardia and paroxysmal supraventricular tachycardia). It is used to restore normal heart rhythm and maintain a regular, steady heartbeat. Flecainide is known as an anti-arrhythmic drug. It works by blocking certain electrical signals in the heart that can cause an irregular heartbeat. Treating an irregular heartbeat can decrease the risk for blood clots, and this effect can reduce your risk of heart attack or stroke.

Side Effects

See also Warning section. Dizziness, vision problems (such as blurred vision, problems focusing, seeing spots), shortness of breath, headache, nausea, shaking, tiredness, or weakness may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly. Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects. Tell your doctor immediately if any of these unlikely but serious side effects occur: new or worsening symptoms of heart failure (such as ankle/leg swelling, increased tiredness, increased shortness of breath when lying down). Seek immediate medical attention if any of these rare but serious side effects occur: faster/more irregular heartbeat, severe dizziness, fainting. A very serious allergic reaction to this drug is rare. However, seek immediate medical attention if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing. This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist. In the US - Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088. In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
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