Prostaglandins.
D000818:Animals; D005753:Gastric Mucosa / Q000187:drug effects; D007413:Intestinal Mucosa / Q000187:drug effects; D007422:Intestines / Q000187:drug effects; D011453:Prostaglandins / Q000494:pharmacology* / Q000502:physiology; D013270:Stomach / Q000187:drug effects
D011453:Prostaglandins