Morphine is most effective on gastrointestinal propulsion in rats by intraperitoneal route: evidence for local action.
D000818:Animals; D001921:Brain / Q000378:metabolism; D004305:Dose-Response Relationship, Drug; D005769:Gastrointestinal Motility / Q000187:drug effects*; D007274:Injections, Intraperitoneal; D007421:Intestine, Small / Q000378:metabolism; D008297:Male; D009020:Morphine / Q000008:administration & dosage / Q000378:metabolism / Q000494:pharmacology*; D009270:Naloxone / Q000494:pharmacology; D010528:Peristalsis / Q000187:drug effects*; D051381:Rats; D014018:Tissue Distribution
D009270:Naloxone; D009020:Morphine