title: Alpha-methyltyrosine to prevent self-administration of morphine and amphetamine.
mesh_terms: D000818:Animals; D003216:Conditioning, Operant / Q000187:drug effects; D003913:Dextroamphetamine / Q000494:pharmacology; D006801:Humans; D008297:Male; D008781:Methyltyrosines / Q000494:pharmacology / Q000627:therapeutic use*; D009020:Morphine / Q000494:pharmacology; D009021:Morphine Dependence / Q000517:prevention & control*; D051381:Rats; D019966:Substance-Related Disorders / Q000517:prevention & control*; D013997:Time Factors
chemical_list: D008781:Methyltyrosines; D009020:Morphine; D003913:Dextroamphetamine