title: Further evidence for negative inotropic action of acetylcholine.
mesh_terms: D000109:Acetylcholine / Q000037:antagonists & inhibitors / Q000494:pharmacology*; D000200:Action Potentials / Q000187:drug effects; D000818:Animals; D001285:Atropine / Q000494:pharmacology; D004155:Diphenhydramine / Q000494:pharmacology; D005021:Ethylamines / Q000494:pharmacology; D005260:Female; D005998:Glycine / Q000494:pharmacology; D006168:Guinea Pigs; D006321:Heart / Q000187:drug effects*; D006325:Heart Atria / Q000187:drug effects; D066298:In Vitro Techniques; D008297:Male; D008839:Microelectrodes; D010862:Pilocarpine / Q000494:pharmacology; D011802:Quinidine / Q000494:pharmacology; D013831:Thiamine / Q000494:pharmacology
chemical_list: D005021:Ethylamines; D010862:Pilocarpine; D001285:Atropine; D004155:Diphenhydramine; D011802:Quinidine; D000109:Acetylcholine; D005998:Glycine; D013831:Thiamine