FlecainideAnti-Arrhythmia AgentsSodiumSodium ChannelsDisopyramidePropafenoneSodium Channel BlockersEncainideQuinidineNAV1.5 Voltage-Gated Sodium ChannelTachycardia, SupraventricularSotalolSodium BicarbonateArrhythmias, CardiacElectrocardiographyVoltage-Gated Sodium Channel BlockersLidocaineMexiletineHeart Conduction SystemSodium, DietaryPhenothiazinesCross CirculationAjmalineTachycardia, VentricularAtrial FibrillationDigoxinSodium ChlorideCardiac Complexes, Premature