BenzodiazepinesAnti-Anxiety AgentsDiazepamChlordiazepoxideAnalgesics, OpioidAlprazolamFlunitrazepamHypnotics and SedativesLorazepamOxazepamGABA ModulatorsNitrazepamFlumazenilReceptors, GABA-AAzabicyclo CompoundsBenzodiazepinonesClonazepamNordazepamFlurazepamNarcoticsMidazolamTemazepamSubstance Abuse DetectionEnzyme Multiplied Immunoassay TechniqueOpioid-Related DisordersGABA-A Receptor AgonistsForensic MedicineMorphineNaloxoneOxycodoneBarbituratesCarbolinesBromazepamPainDrug PrescriptionsDrug OverdoseTriazolamEnkephalin, MethioninePrescription DrugsNarcotic AntagonistsReceptors, OpioidOpioid PeptidesDrug TolerancePsychotropic DrugsSubstance-Related DisordersAnalgesicsPrescription Drug MisuseEnkephalin, Ala(2)-MePhe(4)-Gly(5)-FentanylSubstance Withdrawal SyndromeInappropriate PrescribingDrug UtilizationAnticonvulsantsFluorescence Polarization ImmunoassayDose-Response Relationship, DrugStreet DrugsChronic PainClorazepate Dipotassiumgamma-Aminobutyric AcidGas Chromatography-Mass SpectrometryReceptors, Opioid, kappaBuprenorphineDrug InteractionsEnkephalinsEndorphinsTranquilizing AgentsPentobarbitalPain MeasurementMethadoneSleep Initiation and Maintenance DisordersAntidepressive AgentsHydromorphoneReceptors, Opioid, deltaPregnanoloneConscious SedationNaltrexoneEndrinAnxiety DisordersEnkephalin, D-Penicillamine (2,5)-Heptachlor EpoxideForensic ToxicologyPentylenetetrazoleAlfentanilDeliriumGABA-A Receptor AntagonistsAlcohol Withdrawal DeliriumGABA AgonistsOxymorphoneDrug Utilization ReviewPhysician's Practice PatternsAnalgesiaDextropropoxyphenePregnanedionesPain, IntractableStatus EpilepticusBenzophenonesDynorphinsPoisoningMeprobamateEnkephalin, Leucine