AnalgesicsPain, PostoperativeAnalgesics, OpioidPain MeasurementAnalgesics, Non-NarcoticAnalgesiaPainMorphineTramadolPhenacetinAcetaminophenDextropropoxypheneDrug Administration ScheduleDrug ToleranceTreatment OutcomeAnti-Inflammatory Agents, Non-SteroidalCodeinePain ThresholdDose-Response Relationship, DrugDrug Therapy, CombinationDouble-Blind MethodMeperidineFentanylPain ManagementPentazocineAnesthetics, LocalOxycodoneAntineoplastic Combined Chemotherapy ProtocolsReceptors, Opioid, muInjections, SpinalHyperalgesiaDipyroneBupivacaineAnalgesia, EpiduralNaloxoneAnalgesia, Patient-ControlledAdministration, OralCarrageenanTime FactorsKetoprofenKidney Papillary NecrosisHydrocodoneTolmetinNarcotic AntagonistsPain, IntractableIbuprofenNefopamReceptors, OpioidKetorolacHydromorphoneNociceptionNeuralgiaDrug CombinationsProspective StudiesNalorphineCyclohexanecarboxylic AcidsBuprenorphineAcupuncture AnalgesiaCyclophosphamideEdemaInfusions, IntravenousDiclofenacNociceptorsHypnotics and SedativesAnalgesia, ObstetricalButorphanolOxymorphoneKetamineMorphine DerivativesRats, Sprague-DawleyAlfentanilMorphinansMeptazinolNarcoticsNalbuphineNociceptive PainAntipyreticsAcetic AcidVincristineCombined Modality TherapyInjections, IntravenousNerve BlockDexmedetomidineAnti-Inflammatory AgentsAcute PainChronic PainDrug InteractionsLidocaineCyclazocineRetrospective StudiesKetorolac TromethamineSufentanilDoxorubicinNitrous OxideFluorouracilAspirinAnti-HIV AgentsEndorphinsClinical Trials as TopicCisplatin