title: Antagonism of morphine-induced miosis by naloxone and amphetamine in rabbits.
mesh_terms: D000661:Amphetamine / Q000494:pharmacology*; D000818:Animals; D009020:Morphine / Q000037:antagonists & inhibitors*; D009270:Naloxone / Q000494:pharmacology*; D011680:Pupil / Q000187:drug effects*; D011817:Rabbits
chemical_list: D009270:Naloxone; D009020:Morphine; D000661:Amphetamine