BuprenorphineNaltrexoneNarcotic AntagonistsOpioid-Related DisordersSubstance Withdrawal SyndromeNarcoticsNaloxoneAnalgesics, OpioidOpiate Substitution TreatmentMethadoneMorphineReceptors, OpioidHeroin DependenceReceptors, Opioid, muMorphinansOpiate AlkaloidsAdministration, SublingualHeroinMethadyl AcetateMorphine DependenceAlcoholismNeonatal Abstinence SyndromeSubstance Abuse DetectionHydromorphoneEndorphinsNalbuphineDose-Response Relationship, DrugCodeineEnkephalinsNalorphineReceptors, Opioid, kappaBehavior, AddictiveDiprenorphineMorphine DerivativesReceptors, Opioid, deltaEtorphineOpioid PeptidesDrug ToleranceAlcohol Withdrawal DeliriumEthanolDouble-Blind MethodAnalgesicsEthylketocyclazocineTaurineAlcohol Withdrawal SeizuresDrug InteractionsDelayed-Action PreparationsAnalgesiaEnkephalin, Ala(2)-MePhe(4)-Gly(5)-Enkephalin, MethionineCyclazocinePain MeasurementOpiumButorphanolLevorphanolFentanylRats, Sprague-DawleyTemperanceBehavior, AnimalEuphoriabeta-EndorphinSubstance-Related DisordersAlcohol AbstinenceStreet DrugsTreatment OutcomeEnkephalin, Leucine-2-AlanineConditioning, OperantCocaine-Related DisordersSubstance Abuse Treatment CentersCocaineOxycodoneDisulfiramTime FactorsPainBenzomorphansSelf AdministrationDrug CombinationsMetabolic Detoxication, DrugTramadolThiazinesPupilPain ThresholdDrug and Narcotic ControlDrug OverdoseDrug Administration SchedulePrescription Drug DiversionCentral Nervous System DepressantsPrescription Drug MisuseDihydromorphineDrug Therapy, CombinationMeperidineGas Chromatography-Mass SpectrometrySubstance Abuse, IntravenousDynorphinsDrug ImplantsMeconiumTransdermal PatchAlcohol DrinkingAnalysis of VarianceReinforcement (Psychology)