title: [Calcium antagonists and arrhythmia].
mesh_terms: D001145:Arrhythmias, Cardiac / Q000188:drug therapy*; D002118:Calcium / Q000037:antagonists & inhibitors*; D006801:Humans; D014700:Verapamil / Q000494:pharmacology / Q000627:therapeutic use*
chemical_list: D014700:Verapamil; D002118:Calcium