MexiletinePropylaminesAnti-Arrhythmia AgentsHalf-LifeMyotoniaArea Under CurveDisopyramideAdministration, OralMetabolic Clearance RateBiological AvailabilityPharmacokineticsTocainideSodium Channel BlockersDrug InteractionsInjections, IntravenousVoltage-Gated Sodium Channel BlockersPropafenoneMedigoxinSodium ChannelsCross-Over StudiesLidocaineDose-Response Relationship, DrugChromatography, High Pressure Liquid