Diet induced alterations in opiate analgesic drug potency.
D000701:Analgesics, Opioid / Q000494:pharmacology*; D000818:Animals; D004032:Diet; D008297:Male; D009020:Morphine / Q000494:pharmacology; D011488:Protein Deficiency / Q000503:physiopathology; D051381:Rats; D011930:Reaction Time / Q000187:drug effects; D014364:Tryptophan / Q000172:deficiency
D000701:Analgesics, Opioid; D009020:Morphine; D014364:Tryptophan