Dofetilide is a heart rhythm medicine, also called an antiarrhythmic.
Dofetilide is used to help keep the heart beating normally in people with certain heart rhythm disorders of the atrium (the upper chambers of the heart that allow blood to flow into the heart). Dofetilide is used in people with atrial fibrillation or atrial flutter.
facial or flaccid paralysis
numbness or tingling of the hands, feet, or face
pounding, slow heartbeat
swelling of the ankles, arms, face, feet, fingers, legs, lips, tongue, or throat
unexplained shortness of breath
unusual tiredness or weakness
yellow eyes or skin
Some of the side effects that can occur with dofetilide may not need medical attention. As your body adjusts to the medicine during treatment these side effects may go away. Your health care professional may also be able to tell you about ways to reduce or prevent some of these side effects. If any of the following side effects continue, are bothersome or if you have any questions about them, check with your health care professional:
Abdominal or stomach pain
general feeling of discomfort or illness
loss of appetite
muscle aches and pains