Analgesics, OpioidAnesthetics, IntravenousAnalgesia, EpiduralSufentanilAdjuvants, AnesthesiaAnesthesia, IntravenousAlfentanilBupivacainePain, PostoperativeAdministration, CutaneousPreanesthetic MedicationAnesthetics, CombinedAnalgesia, ObstetricalPropofolAnesthesia, GeneralMorphineDouble-Blind MethodAnalgesia, Patient-ControlledMidazolamAnesthesia Recovery PeriodPain MeasurementAnesthetics, LocalReceptors, Opioid, muNitrous OxideNarcoticsBreakthrough PainDrug InteractionsInjections, IntravenousIsofluraneAnesthetics, InhalationNaloxoneAnesthesia, EpiduralInjections, SpinalPainAnesthesia, ObstetricalAnalgesiaInfusions, IntravenousMethyl EthersDroperidolHypnotics and SedativesConscious SedationMeperidineAnesthesia, InhalationAnesthesiaAnestheticsDrug Administration ScheduleDose-Response Relationship, DrugNarcotic AntagonistsTime FactorsTransdermal PatchAdministration, OralInfusion PumpsHemodynamicsAnalgesicsNeuromuscular Nondepolarizing AgentsAdministration, BuccalCesarean SectionAnesthesia, SpinalPostoperative Nausea and VomitingDrug ToleranceEnfluraneRadiation DosageThiopentalLethal Dose 50PiperidinesHalf-LifeKetamineOxycodoneIntubation, IntratrachealSuccinylcholineHeart RateProspective StudiesDexmedetomidineLidocaineAmbulatory Surgical ProceduresLaryngismusAnesthesia, IntratrachealNalbuphineTreatment OutcomeRespirationBlood PressureOxymorphoneHydromorphoneLoperamideDeep SedationThoracotomyDermatologic Surgical ProceduresRadiometryDogsArea Under CurveBuprenorphineMuscle RigidityMethohexitalEtomidateApneaDrug CombinationsMandibular OsteotomyAndrostanolsClonidineMedetomidine