“…Procainamide or quinidine is recommended for use of chemical cardioversion, whereas other medications, including flecainide, also have been used successfully in pregnancy without any adverse sequelae. 4,5 However, some antiarrhythmics are not recommended during pregnancy, such as amiodarone, because of concerns of teratogenicity. If chemical cardioversion is successful, then continued oral antiarrhythmics are unnecessary.…”