NifedipineDihydropyridinesCalcium Channel BlockersIsradipineCalcium Channels, L-TypeCalcium ChannelsNitrendipineNicardipineNisoldipineCalcium Channel AgonistsDiltiazemNimodipineCalciumOxadiazolesRyanodine Receptor Calcium Release ChannelVerapamilFelodipineNicotinic AcidsReceptors, NicotinicAmlodipineMusclesRabbitsBariumMembrane PotentialsMuscle ContractionAzetinesMuscle, Skeletalomega-Conotoxin GVIAPyridinesSarcoplasmic ReticulumAzetidinecarboxylic AcidMyocardiumElectrophysiologyRyanodineIon Channelsomega-ConotoxinsKineticsSarcolemmaMuscle Fibers, SkeletalGuinea PigsMuscle Proteinsomega-Agatoxin IVAIon Channel GatingDose-Response Relationship, DrugAntihypertensive AgentsCells, CulturedMollusk VenomsPatch-Clamp TechniquesCalcium SignalingCalcium RadioisotopesBlood PressureCyclic P-OxidesMuscle, Smooth, VascularBenzylisoquinolinesAzidesHypertensionStereoisomerismGallopamilCaffeineElectric ConductivityPotassium ChloridePotassiumAffinity LabelsMibefradilHeartMyocardial ContractionRats, Inbred SHRDelayed-Action PreparationsMembranesMicrosomesGingival OvergrowthRadioligand AssaySpider VenomsDogsRats, Inbred StrainsAzirinesMalignant HyperthermiaVasodilator AgentsNorepinephrineHeart RateBinding SitesDrug InteractionsNickelCalsequestrinMuscle, SmoothLanthanumEgtazic AcidRats, Sprague-DawleyExcitation Contraction CouplingParalyses, Familial PeriodicTocolytic AgentsElectric StimulationCell MembraneAtenololTetracaineRats, WistarVasoconstrictionMesenteric ArteriesIodocyanopindololCalcium Chloride