title: Calcium antagonistic action of a coumarin isolated from "Qian-Hu", a Chinese traditional medicine.
mesh_terms: D000818:Animals; D002118:Calcium / Q000037:antagonists & inhibitors*; D002681:China; D003374:Coumarins / Q000302:isolation & purification / Q000494:pharmacology*; D006168:Guinea Pigs; D066298:In Vitro Techniques; D008297:Male; D009119:Muscle Contraction / Q000187:drug effects; D010946:Plants, Medicinal / Q000032:analysis
chemical_list: D003374:Coumarins; D002118:Calcium