Substance Withdrawal SyndromeEthanolSelf AdministrationAlcoholismCorticotropin-Releasing HormoneCocaineTobacco Use DisorderSmoking CessationMorphine DependenceTobacco Use Cessation ProductsTime FactorsNicotineCannabisAlcohol Withdrawal DeliriumNaloxoneNarcotic AntagonistsOpioid-Related DisordersAlcohol Withdrawal SeizuresNicotinic AgonistsBuprenorphineBupropionNeonatal Abstinence SyndromeMarijuana AbuseBehavior, AddictiveSmokingMorphineChlormethiazoleAnhedoniaIrritable MoodDrug ToleranceMethadoneHeroin DependenceNarcoticsAnxietyChewing GumSodium OxybateOpiate Substitution TreatmentClomipramineCotinineBenzodiazepinesAdministration, CutaneousCarbon MonoxideDouble-Blind MethodCarbamazepineCentral Nervous System DepressantsAnalgesics, OpioidQuestionnairesAnti-Anxiety AgentsAffectTreatment OutcomeHypnotics and SedativesRecurrenceNaltrexonePsychiatric Status Rating ScalesSubstance-Related DisordersDronabinolSeverity of Illness IndexBenzazepinesClonidineDose-Response Relationship, DrugCannabinoidsValproic AcidBehavior, AnimalDopamine Uptake InhibitorsMotivationDiagnostic and Statistical Manual of Mental DisordersAnalysis of VarianceAnticonvulsantsQuinoxalinesAttention Deficit Disorder with HyperactivityProspective StudiesDrug Administration SchedulePlacebosStress, PsychologicalRats, Sprague-DawleyFollow-Up StudiesSelf Report