title: Human drug self-administration: double-blind comparison of pentobarbital, diazepam, chlorpromazine and placebo.
mesh_terms: D000328:Adult; D002746:Chlorpromazine / Q000008:administration & dosage*; D003975:Diazepam / Q000008:administration & dosage*; D004305:Dose-Response Relationship, Drug; D004311:Double-Blind Method; D004334:Drug Administration Schedule; D006801:Humans; D008297:Male; D008691:Methadone / Q000627:therapeutic use; D010424:Pentobarbital / Q000008:administration & dosage*; D010919:Placebos; D012646:Self Administration; D019966:Substance-Related Disorders / Q000523:psychology* / Q000534:rehabilitation; D013997:Time Factors
chemical_list: D010919:Placebos; D010424:Pentobarbital; D003975:Diazepam; D002746:Chlorpromazine; D008691:Methadone