IbuprofenAspirinArthritis, RheumatoidArthritisArthritis, ExperimentalArthritis, InfectiousAnti-Inflammatory Agents, Non-SteroidalArthritis, JuvenileArthritis, PsoriaticArthritis, ReactiveCyclooxygenase InhibitorsAnalgesics, Non-NarcoticPlatelet Aggregation InhibitorsAcetaminophenSynovial MembraneJointsSynovial FluidThromboxane B2NaproxenDiclofenacArthritis, GoutyRheumatoid FactorOsteoarthritisDrug Therapy, CombinationDouble-Blind MethodSalicylatesMice, Inbred DBACyclooxygenase 2 InhibitorsSynovitisAntipyreticsTreatment OutcomeTiclopidineIndomethacinPlatelet AggregationDuctus Arteriosus, PatentProstaglandin-Endoperoxide SynthasesDose-Response Relationship, DrugCyclooxygenase 1Collagen Type IIKetoprofenSeverity of Illness IndexSodium SalicylateThromboxanesTime FactorsAnti-Inflammatory AgentsTherapeutic EquivalencyPlatelet Function TestsAdministration, OralMethotrexateRats, Inbred LewSulfonesPainTumor Necrosis Factor-alphaCyclooxygenase 2Blood PlateletsAutoantibodiesBlood SedimentationDinoprostoneLactones