title: Bidirectional tachycardia.
mesh_terms: D004077:Digoxin / Q000009:adverse effects*; D004562:Electrocardiography; D005260:Female; D006801:Humans; D007008:Hypokalemia / Q000139:chemically induced / Q000188:drug therapy; D008875:Middle Aged; D011188:Potassium / Q000008:administration & dosage; D013610:Tachycardia / Q000139:chemically induced*
chemical_list: D004077:Digoxin; D011188:Potassium