LactonesSulfonesCyclooxygenase InhibitorsCyclooxygenase 2 InhibitorsCyclooxygenase 2NarcoticsProstaglandin-Endoperoxide SynthasesAnalgesicsAnti-Inflammatory Agents, Non-SteroidalCyclooxygenase 1Analgesics, OpioidNalorphineAnalgesics, Non-NarcoticSafety-Based Drug WithdrawalsDrug and Narcotic ControlIbuprofenPyrazolesMorphineIndomethacinDinoprostoneNaproxenLevorphanolMeperidineIsoenzymesSulfonamidesDiclofenacPain MeasurementPentazocineAnalgesiaPain, PostoperativePainNarcotic AntagonistsLevallorphanDextropropoxypheneProstaglandinsAcetaminophenThiazinesFentanylMorphinansLegislation, DrugCyclazocineOpiumCodeinePhenacetinMembrane ProteinsAlphaprodineAspirinArachidonic AcidGastrointestinal DiseasesOxymorphoneDose-Response Relationship, DrugDouble-Blind MethodOpioid-Related DisordersMethadoneTramadolDrug ToleranceClinical Trials, Phase IV as TopicNitrobenzenesOsteoarthritisThromboxane B2OxycodoneHydrocodoneLipoxygenase InhibitorsHeroinFuransPreanesthetic MedicationRats, Sprague-DawleyPain ManagementFlurbiprofenEpoprostenolArachidonic AcidsHydromorphonePiroxicamPain, IntractableStomach UlcerReceptors, Opioid, muHyperalgesiaEdemaIsodesmosineAnesthetics, LocalTime FactorsKetorolacReceptors, Prostaglandin EBupivacaineLipoxygenase6-Ketoprostaglandin F1 alphaReceptors, OpioidEicosanoidsTolmetinDrug InteractionsButorphanolMasoprocolAnalgesia, Patient-ControlledAlfentanilKetoprofenSubstance-Related DisordersPain ThresholdDrug PrescriptionsSpasmMorphine Derivatives