title: Effects of chronic morphine administration on the catecholamine depletion induced by reserpine.
mesh_terms: D000818:Animals; D001923:Brain Chemistry / Q000187:drug effects*; D002395:Catecholamines / Q000037:antagonists & inhibitors*; D004298:Dopamine / Q000032:analysis; D008297:Male; D009020:Morphine / Q000494:pharmacology*; D009638:Norepinephrine / Q000037:antagonists & inhibitors; D051381:Rats; D012110:Reserpine / Q000037:antagonists & inhibitors*
chemical_list: D002395:Catecholamines; D009020:Morphine; D012110:Reserpine; D004298:Dopamine; D009638:Norepinephrine