Effects of repeated administration of morphine on tyrosine hydroxylase in the rat brain.
D000818:Animals; D002421:Caudate Nucleus / Q000201:enzymology*; D009020:Morphine / Q000008:administration & dosage / Q000494:pharmacology*; D051381:Rats; D014446:Tyrosine 3-Monooxygenase / Q000378:metabolism*
D009020:Morphine; D014446:Tyrosine 3-Monooxygenase