Flecainide [Chemical/Ingredient] C24282 4441 Flecainide N0000006966 A potent anti-arrhythmia agent, effective in a wide range of ventricular and atrial arrhythmias and tachycardias. Paradoxically, however, in myocardial infarct patients with either symptomatic or asymptomatic arrhythmia, flecainide exacerbates the arrhythmia and is not recommended for use in these patients. C0016229 Benzamide, N-(2-piperidinylmethyl)-2,5-bis(2,2,2-trifluoroethoxy)- Flecainide M0008556 Flecainide D005424 Piperidines [Chemical/Ingredient]