title: Antagonism of methadone's intestinal effects by cyproheptadine.
mesh_terms: D000818:Animals; D001285:Atropine / Q000494:pharmacology; D001626:Bethanechol Compounds / Q000494:pharmacology; D003533:Cyproheptadine / Q000494:pharmacology*; D003864:Depression, Chemical; D004285:Dogs; D005260:Female; D005769:Gastrointestinal Motility / Q000187:drug effects*; D066298:In Vitro Techniques; D007422:Intestines / Q000187:drug effects*; D007928:Lethal Dose 50; D008297:Male; D008691:Methadone / Q000037:antagonists & inhibitors* / Q000494:pharmacology / Q000633:toxicity; D051379:Mice
chemical_list: D001626:Bethanechol Compounds; D003533:Cyproheptadine; D001285:Atropine; D008691:Methadone