QuinidineAnti-Arrhythmia AgentsPropafenoneFlecainideAmiodaroneProcainamideMexiletineDigestive System ProcessesSotalolTocainideLidocaineArrhythmias, CardiacAtrial FibrillationPhenethylaminesElectrocardiographyMoricizineBepridilPyrimidinonesAtrial FlutterTachycardiaRefractory Period, ElectrophysiologicalHeart Conduction SystemTachycardia, VentricularAction PotentialsSodium Channel BlockersVentricular FibrillationGuinea PigsDogsPapillary MusclesAprindinePotassium Channel BlockersHeart AtriaPiperidinesCardiac Complexes, PrematureHeartPotassium ChannelsElectrophysiologyPurkinje FibersTorsades de PointesHeart VentriclesElectric CountershockCatheter AblationSulfonamidesPhenothiazinesHeart RateSodium ChannelsVerapamilBenzofuransDose-Response Relationship, DrugAtrioventricular NodeTachycardia, SupraventricularCardiac Pacing, ArtificialMyocardiumPotassium Channels, Voltage-GatedQuininePropanolaminesPyridinesAdrenergic beta-AntagonistsMembrane PotentialsPatch-Clamp TechniquesTime FactorsRecurrenceImidazoles