title: [Mechanism of spasmolytic action of 4-methylumbelliferone].
mesh_terms: D014670:Ampulla of Vater / Q000187:drug effects; D000818:Animals; D001013:Aorta, Thoracic / Q000187:drug effects; D001285:Atropine / Q000494:pharmacology; D065098:Catechol O-Methyltransferase Inhibitors; D003374:Coumarins / Q000494:pharmacology*; D004789:Enzyme Activation / Q000187:drug effects; D066298:In Vitro Techniques; D008099:Liver / Q000201:enzymology; D008297:Male; D009119:Muscle Contraction / Q000187:drug effects; D009130:Muscle, Smooth / Q000187:drug effects; D010208:Papaverine / Q000494:pharmacology; D010276:Parasympatholytics; D011748:Pyrogallol / Q000494:pharmacology; D011817:Rabbits; D051381:Rats
chemical_list: D065098:Catechol O-Methyltransferase Inhibitors; D003374:Coumarins; D010276:Parasympatholytics; D011748:Pyrogallol; D001285:Atropine; D010208:Papaverine