Anesthetics, DissociativeXylazineAnalgesicsExcitatory Amino Acid AntagonistsAnesthetics, CombinedAnestheticsMidazolamThiopentalReceptors, N-Methyl-D-AspartateAcepromazineDepressive Disorder, Treatment-ResistantAnesthesiaAnesthesia, IntravenousAnesthetics, IntravenousMedetomidineConscious SedationPropofolPentobarbitalDose-Response Relationship, DrugStereoisomerismAdjuvants, AnesthesiaAnesthesia, CaudalPsychoses, Substance-InducedAnesthesia, GeneralPreanesthetic MedicationPain, PostoperativeRaccoon DogsTiletamineInjections, IntramuscularDouble-Blind MethodAnalgesiaAnalgesics, OpioidHeart RateDrug InteractionsAntidepressive AgentsMorphineFentanylRats, Sprague-DawleyRespirationPain MeasurementPain, IntractableHalothaneInjections, IntravenousZolazepamInjections, SpinalBlood PressureHemodynamicsInfusions, IntravenousPhencyclidineEtomidateMemantineHallucinogensDiazepamDizocilpine MaleateDexmedetomidineTime FactorsAnesthesia, DentalDextromethorphanAmnesia, AnterogradeAnesthesia Recovery PeriodBrainN-MethylaspartateAdjuvants, PharmaceuticAnesthetics, InhalationIsofluraneRiluzoleHyperalgesiaCatsAnesthesia, InhalationDisease Models, AnimalNitrous OxideAnesthesia, RectalNeurotoxicity SyndromesCross-Over StudiesSurgical Procedures, MinorBites and StingsDrug SynergismDissociative DisordersSecobarbitalBehavior, AnimalElectroencephalographyAdministration, RectalAnalgesia, EpiduralRats, WistarDrug CombinationsLidocaineElectric StimulationAnesthetics, LocalHeartBonding, Human-PetMethohexitalNefopamRandom AllocationAnesthetics, GeneralPainEnfluranePreservatives, PharmaceuticalAlfaxalone Alfadolone MixtureSubstance Abuse DetectionDroperidol