Relation between morphine pharmacokinetics and analgesia.
D000701:Analgesics, Opioid / Q000378:metabolism*; D000818:Animals; D007700:Kinetics; D008297:Male; D009020:Morphine / Q000378:metabolism* / Q000494:pharmacology; D051381:Rats
D000701:Analgesics, Opioid; D009020:Morphine