In: LiverTox: Clinical and Research Information on Drug-Induced Liver Injury [Internet]. Bethesda (MD): National Institute of Diabetes and Digestive and Kidney Diseases; 2012.
Flecainide is an oral antiarrhythmic agent that has been in use for several decades. Long term flecainide therapy is associated with a low rate of serum enzyme elevations and is a very rare cause of clinically apparent acute liver injury.