Concentration of morphine in blood and brain after intravenous injection of morphine in non-tolerant, tolerant and neostigmine-treated rats.
D000818:Animals; D001921:Brain / Q000378:metabolism*; D007275:Injections, Intravenous; D009020:Morphine / Q000032:analysis*; D009388:Neostigmine / Q000494:pharmacology*; D051381:Rats
D009388:Neostigmine; D009020:Morphine
BRAIN/metabolism; MORPHINE/determination; NEOSTIGMINE/effects