title: Excitatory effect of tetrodotoxin on an isolated smooth muscle organ.
mesh_terms: D000109:Acetylcholine / Q000494:pharmacology; D000200:Action Potentials / Q000187:drug effects; D014670:Ampulla of Vater / Q000187:drug effects; D000818:Animals; D001285:Atropine / Q000494:pharmacology; D002415:Cats; D004357:Drug Synergism; D005260:Female; D066298:In Vitro Techniques; D007421:Intestine, Small / Q000187:drug effects; D009130:Muscle, Smooth / Q000187:drug effects*; D009638:Norepinephrine / Q000494:pharmacology; D010643:Phenoxybenzamine / Q000494:pharmacology; D011817:Rabbits; D051381:Rats; D013779:Tetrodotoxin / Q000494:pharmacology*; D014599:Uterus / Q000187:drug effects
chemical_list: D010643:Phenoxybenzamine; D013779:Tetrodotoxin; D001285:Atropine; D000109:Acetylcholine; D009638:Norepinephrine