Drug OverdoseNaloxoneNarcotic AntagonistsOpioid-Related DisordersAnalgesics, OpioidHeroin DependenceNarcoticsReceptors, Opioid, muReceptors, OpioidReceptors, Opioid, deltaReceptors, Opioid, kappaOpioid PeptidesAcetaminophenAnalgesics, Non-NarcoticReversal LearningNaltrexoneCharcoalHeroinPoisoningPrescription Drug MisuseSuicide, AttemptedAntidotesMorphineEnkephalinsEnkephalin, Ala(2)-MePhe(4)-Gly(5)-BuprenorphineOpiate AlkaloidsMethadoneEnkephalin, D-Penicillamine (2,5)-EndorphinsPrescription DrugsDynorphinsDrug-Induced Liver InjuryEnkephalin, Leucine