Flecainide Bookmark Share View Topic Outline Oral / IV FlecainideMechanism of ActionBinds to and inhibits fast sodium channels responsible for rapid depolarisation during phase 0 of the cardiomyocyte action potential. Clinical UseIndicationsAdverse Effects Want more info like this? MedSchool Your electronic clinical medicine handbook Guides to help pass your exams Tools every medical student needs Quick diagrams to have the answers, fast Quizzes to test your knowledge Sign Up Now