title: Effect of chronic morphine implantation on tyrosine hydroxylase activity in the rat caudate.
mesh_terms: D000818:Animals; D002421:Caudate Nucleus / Q000201:enzymology*; D004435:Eating / Q000187:drug effects; D006801:Humans; D009020:Morphine / Q000008:administration & dosage / Q000494:pharmacology*; D010919:Placebos; D051381:Rats; D013375:Substance Withdrawal Syndrome; D014446:Tyrosine 3-Monooxygenase / Q000037:antagonists & inhibitors*
chemical_list: D010919:Placebos; D009020:Morphine; D014446:Tyrosine 3-Monooxygenase