Anesthetics, DissociativeXylazineAnalgesicsExcitatory Amino Acid AntagonistsAnesthetics, CombinedMidazolamAnestheticsThiopentalReceptors, N-Methyl-D-AspartateDepressive Disorder, Treatment-ResistantDouble-Blind MethodAcepromazineAnesthetics, IntravenousAnesthesia, IntravenousPropofolConscious SedationStereoisomerismAdjuvants, AnesthesiaMedetomidinePentobarbitalAnesthesiaAnesthesia, CaudalPsychoses, Substance-InducedInjections, IntramuscularAdministration, OralRadiation DosageLethal Dose 50Drug Administration ScheduleDose-Response Relationship, DrugInjections, IntravenousInfusions, IntravenousRats, Sprague-DawleyDrug InteractionsTime FactorsPreanesthetic MedicationAnesthesia, GeneralPain, PostoperativeAnalgesics, OpioidAnalgesiaMorphineTiletamineRadiometryFentanylPain MeasurementAntidepressive AgentsTreatment OutcomeInjections, SpinalRats, WistarPain, IntractableDiazepamDrug CombinationsPhencyclidineHallucinogensDrug SynergismRespirationHeart RateDrug Therapy, CombinationDizocilpine MaleateBrainZolazepamDose-Response Relationship, RadiationMemantineEtomidateDose FractionationDexmedetomidineDextromethorphanRadiotherapy DosageDisease Models, AnimalBlood PressureAnesthesia Recovery PeriodHalf-LifeAnesthesia, DentalDrug ToleranceBehavior, AnimalN-MethylaspartateArea Under CurveHalothaneInjections, IntraperitonealAmnesia, AnterogradeRiluzoleAdministration, RectalRandom AllocationPainAdjuvants, PharmaceuticInjections, SubcutaneousAnalysis of VarianceNitrous OxideHyperalgesiaAnesthetics, InhalationAnesthetics, LocalAnalgesia, EpiduralProspective StudiesElectroencephalographyHemodynamicsSurgical Procedures, MinorRadiotherapy Planning, Computer-AssistedPlacebosAnesthesia, RectalNeurotoxicity SyndromesAnesthesia, Inhalation