TabletsTablets, Enteric-CoatedAdministration, OralChemistry, PharmaceuticalExcipientsDrug CompoundingDelayed-Action PreparationsTechnology, PharmaceuticalMethylcellulosePowdersSolubilityDrug Administration ScheduleBiological AvailabilityTime FactorsHardnessInjections, IntravenousUnited States Food and Drug AdministrationDose-Response Relationship, DrugTherapeutic EquivalencyCapsulesAdministration, BuccalDrug Administration RoutesDosage FormsRats, Sprague-DawleyAbnormalities, MultipleCross-Over StudiesLubricantsDrug StabilityAdministration, SublingualDisease Models, AnimalPovidoneCelluloseRats, WistarAdministration, IntranasalDouble-Blind MethodDrug CombinationsChromosome AberrationsArea Under CurveMice, Inbred C57BLHardness TestsBrainTreatment OutcomeInjections, IntraperitonealChromatography, High Pressure LiquidHalf-LifePregnancyLiverSuspensionsAdministration, RectalCarboxymethylcellulose SodiumMagnetic Resonance ImagingInjections, SubcutaneousAcetaminophenDrug CarriersAdministration, TopicalCompressive StrengthCongenital AbnormalitiesInjections, IntramuscularDogsDrug InteractionsChromosome DisordersInfusions, IntravenousPharmaceutic AidsPolymethacrylic AcidsAnalysis of VarianceKaryotypingEye AbnormalitiesPharmaceutical PreparationsBlood PressureDrug Delivery SystemsProspective StudiesAnti-Inflammatory Agents, Non-SteroidalBody WeightPlant ExtractsKidneyRandom AllocationDrug StorageTissue DistributionMice, KnockoutDrug PackagingAnalgesics, Non-NarcoticIntestinal AbsorptionAdministration, IntravenousInjections, IntraventricularReproducibility of ResultsMice, Inbred BALB CAdministration, CutaneousRats, Inbred StrainsPorosityParticle SizeDrug Evaluation, PreclinicalStearic AcidsBehavior, AnimalDrug Therapy, CombinationTensile StrengthFamotidineRNA, MessengerOrgan SizeAbsorptionRetrospective Studies