In patients with atrial fibrillation (AF), the ventricular rate is modulated by the conduction properties of the atrioventricular (AV) node.
Oral 800 mg PO daily x 1 week, then 600 mg PO daily x 1 week, then 400 mg PO daily x 4 to 6 weeks, then 200 mg daily Individual to patient Atenolol2 bronchospasm, HF Oral 25