Drug OverdoseAnalgesics, OpioidAcetaminophenAnalgesics, Non-NarcoticCharcoalNaloxonePoisoningAnesthetics, IntravenousNarcoticsHeroin DependenceSuicide, AttemptedAnalgesia, EpiduralAntidotesNarcotic AntagonistsHeroinOpioid-Related DisordersBupivacaineSufentanilAdjuvants, AnesthesiaAnesthesia, IntravenousPrescription Drug MisuseAlfentanilPain, PostoperativeAdministration, CutaneousMorphinePreanesthetic MedicationAnesthetics, CombinedAnalgesia, ObstetricalPropofolAnesthesia, GeneralDrug-Induced Liver InjuryOxycodoneOpiate AlkaloidsAnalgesia, Patient-ControlledAnesthesia Recovery PeriodMidazolamSodium OxybatePain MeasurementReceptors, Opioid, muAnesthetics, LocalHypnotics and SedativesNitrous OxideBreakthrough PainDouble-Blind MethodDothiepinDrug InteractionsDextropropoxypheneIpecacPainInjections, SpinalMethadoneStreet DrugsHemoperfusionBromcresol GreenDose-Response Relationship, DrugAntidepressive Agents, TricyclicIsofluraneComaAnesthetics, InhalationAnesthesia, EpiduralAnesthesiaSuicideAnesthesia, ObstetricalAmitriptylineMethyl EthersDroperidolAnalgesiaConscious SedationAlprazolamMoclobemideBuprenorphineInfusions, IntravenousSubstance Abuse, IntravenousMeperidineAnesthesia, InhalationInjections, IntravenousOxymorphoneCoroners and Medical ExaminersSerotonin SyndromeAnestheticsFatal OutcomeAnalgesicsTransdermal PatchDrug PackagingSubstance-Related DisordersAdministration, BuccalHemodynamicsDrug UsersLiver Failure, AcutePoison Control CentersCesarean SectionForensic MedicineInfusion PumpsSubstance Abuse DetectionPostoperative Nausea and VomitingAcetylcysteineEnfluraneNeuromuscular Nondepolarizing AgentsEpilepsy, Tonic-ClonicGas Chromatography-Mass Spectrometry