Depression, ChemicalPentobarbitalEnfluraneMyocardial Depressant FactorHalothaneDesipramineMuscle Relaxants, CentralAnestheticsIontophoresisHypnotics and SedativesIsofluraneAdrenergic AgentsFenclonineGABA-B Receptor AntagonistsRespirationCatsAnesthetics, InhalationDiazepamElectric StimulationXanthinesMyocardial ContractionDrug InteractionsDose-Response Relationship, DrugNaloxoneThiopentalAnesthesia, InhalationEvoked PotentialsBaclofenDrug ToleranceMorphineGuinea PigsSynaptic TransmissionMeprobamateCentral Nervous System DepressantsClonidineAction PotentialsAdenosinePropranololMethyl EthersNorepinephrineAnesthesiaHeart RateReceptors, Adrenergic, alpha-2Anesthetics, IntravenousBicucullinegamma-Aminobutyric AcidPropofolHeartAtropineSpinal CordMotor ActivityNeuronsBarbituratesAcetylcholineRats, Sprague-DawleyReceptors, GABA-AAnalgesics, OpioidRats, Inbred StrainsSerotoninEthanolDrug SynergismCarbon DioxideIsoproterenolScorpion VenomsElectrophysiologyDogsMetergolineSynapsesBehavior, AnimalBlood PressureRats, WistarMembrane PotentialsTime FactorsCalciumMuscle ContractionHippocampusBemegrideHemodynamicsNialamideScorpionsChlorpromazineAminobutyratesRabbitsSecobarbitalPregnanesNalorphineHexamethonium CompoundsTranquilizing AgentsSodium OxybatePromethazineConvulsantsStrychnineTropanesMeperidineParasympathomimeticsMorphinansGanglionic BlockersAmino AlcoholsKetanserinReflex