C01BAntiarrhythmics, Class I And Iii↑ C01SubgroupsAntiarrhythmics, class IaC01BAAntiarrhythmics, class IbC01BBAntiarrhythmics, class IcC01BCAntiarrhythmics, class IIIC01BDOther antiarrhythmics, class I and IIIC01BGSubstanceslidocaineC01BB01amiodaroneC01BD01flecainideC01BC04dofetilideC01BD04procainamideC01BA02disopyramideC01BA03dronedaroneC01BD07ibutilideC01BD05quinidineC01BA01ajmalineC01BA05