Analysis of the peristaltic reflex in vitro: effects of some morphine-like drugs.
D000818:Animals; D005283:Fentanyl / Q000494:pharmacology; D005769:Gastrointestinal Motility / Q000187:drug effects*; D006168:Guinea Pigs; D007082:Ileum / Q000187:drug effects*; D066298:In Vitro Techniques; D009020:Morphine / Q000494:pharmacology*; D009132:Muscles / Q000187:drug effects; D012018:Reflex / Q000187:drug effects*; D013997:Time Factors
D009020:Morphine; D005283:Fentanyl