title: Mediation by 5-hydroxytryptamine of morphine stimulant actions in dog intestine.
mesh_terms: D000109:Acetylcholine / Q000494:pharmacology; D000818:Animals; D001285:Atropine / Q000494:pharmacology; D001626:Bethanechol Compounds / Q000494:pharmacology; D003533:Cyproheptadine / Q000494:pharmacology; D004285:Dogs; D004305:Dose-Response Relationship, Drug; D004347:Drug Interactions; D066298:In Vitro Techniques; D007422:Intestines / Q000187:drug effects*; D009020:Morphine / Q000494:pharmacology*; D009538:Nicotine / Q000494:pharmacology; D010879:Piperazines / Q000494:pharmacology; D000644:Quaternary Ammonium Compounds / Q000494:pharmacology; D012110:Reserpine / Q000494:pharmacology; D012701:Serotonin / Q000494:pharmacology*; D013779:Tetrodotoxin / Q000494:pharmacology; D013997:Time Factors
chemical_list: D001626:Bethanechol Compounds; D010879:Piperazines; D000644:Quaternary Ammonium Compounds; D003533:Cyproheptadine; D012701:Serotonin; D013779:Tetrodotoxin; D009538:Nicotine; D009020:Morphine; D001285:Atropine; D012110:Reserpine; D000109:Acetylcholine