InjectionsAdministration, OralInjections, IntravenousInjections, IntramuscularInjections, SubcutaneousInjections, IntraperitonealInjections, IntralesionalRats, Sprague-DawleyTime FactorsDose-Response Relationship, DrugInjections, Intra-ArticularDrug Administration ScheduleInjections, IntraventricularDrug Administration RoutesRats, WistarDisease Models, AnimalUnited States Food and Drug AdministrationInjections, SpinalInjections, Intra-ArterialInjections, IntradermalMice, Inbred C57BLInjections, EpiduralLiverAdministration, IntranasalIntravitreal InjectionsMice, Inbred BALB CTissue DistributionRats, Inbred StrainsInjections, JetInjections, IntraocularHalf-LifeMicroinjectionsBiological AvailabilityRabbitsTreatment OutcomeInfusions, IntravenousDogsBrainAdministration, RectalDrug InteractionsAdministration, TopicalRandom AllocationBehavior, AnimalDouble-Blind MethodBlood PressureArea Under CurveKidneyAdministration, IntravenousBody WeightPregnancyAdministration, CutaneousRNA, MessengerRecombinant ProteinsFlow Injection AnalysisAnalysis of VarianceGenetic TherapyMice, Inbred ICRMorphineSpleenAnesthetics, LocalMetabolic Clearance RatePain MeasurementMice, Inbred StrainsPainOrgan SizeGenetic VectorsCross-Over StudiesEstradiolRats, Inbred F344Sperm Injections, IntracytoplasmicDrug ToleranceSubstance Abuse, IntravenousSyringesLungMice, KnockoutImmunohistochemistryAntibodies, MonoclonalChromatography, High Pressure LiquidMotor ActivityNeedlesNeoplasm TransplantationAnalgesicsLidocaineVitreous BodyAnalgesics, OpioidLipopolysaccharidesEthanolHeart RatePlant ExtractsSelf AdministrationAnti-Inflammatory AgentsMice, NudeAdministration, InhalationAnimals, NewbornDrug CombinationsAdministration, SublingualProgesteroneContrast MediaCells, CulturedGene Transfer Techniques