title: Adverse effects of sympatholytic agents in patients with hypertension and sinus node dysfunction.
mesh_terms: D000368:Aged; D001146:Arrhythmia, Sinus / Q000139:chemically induced*; D001919:Bradycardia / Q000139:chemically induced*; D003000:Clonidine / Q000009:adverse effects; D004562:Electrocardiography; D005260:Female; D006145:Guanethidine / Q000009:adverse effects; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D006973:Hypertension / Q000188:drug therapy*; D008297:Male; D008750:Methyldopa / Q000009:adverse effects; D008875:Middle Aged; D011433:Propranolol / Q000009:adverse effects; D013565:Sympatholytics / Q000009:adverse effects* / Q000627:therapeutic use
chemical_list: D013565:Sympatholytics; D008750:Methyldopa; D011433:Propranolol; D003000:Clonidine; D006145:Guanethidine