IbuprofenNaproxenAspirinAnti-Inflammatory Agents, Non-SteroidalCyclooxygenase InhibitorsAnalgesics, Non-NarcoticAcetaminophenDiclofenacThromboxane B2Cyclooxygenase 2 InhibitorsDouble-Blind MethodSulfonesAntipyreticsPlatelet Aggregation InhibitorsCyclooxygenase 1Therapeutic EquivalencyKetoprofenProstaglandin-Endoperoxide SynthasesDuctus Arteriosus, PatentLactonesIndomethacinFlurbiprofenPhenylbutazoneEtodolacCyclooxygenase 2Naphthaleneacetic AcidsDose-Response Relationship, DrugThromboxanesDrug InteractionsDrug Therapy, CombinationSulfonamides