Mirabeg ER Mirabegron Flecainide Acetate
ModerateTake extra care if you use Megron ER (mirabegron) together with flecainide. Flecainide is a Type 1C antiarrhythmic, a medicine for irregular heartbeat. It works within a narrow range: a small change in the amount in your body can matter. Your body breaks it down largely through an enzyme called CYP2D6. Since mirabegron can affect how this enzyme works, the two medicines should be used together only with caution. Tell your doctor or pharmacist that you take both, so they can keep a close watch on you.
These medicines are often taken together with some care. Your doctor may change a dose, space them apart or check on you more often. Make sure your doctor and pharmacist know you take both.