title: By the way, doctor. I am 81 with no history of heart problems. I recently developed atrial fibrillation and now take half of a 25-mg tablet of atenolol. The doctor says it's working, but it makes me extremely tired. Could you suggest another medication that I might have better luck with?
authors.forename: Anthony L
authors.initials: AL
authors.lastname: Komaroff
mesh_terms: D000369:Aged, 80 and over; D000889:Anti-Arrhythmia Agents / Q000009:adverse effects*; D001262:Atenolol / Q000009:adverse effects*; D001281:Atrial Fibrillation / Q000188:drug therapy*; D005221:Fatigue / Q000139:chemically induced*; D006801:Humans
chemical_list: D000889:Anti-Arrhythmia Agents; D001262:Atenolol