HTN Initially 50 mg in the morning, may be increased to 100 mg after 1 wk. CAD 50 or 100 mg once daily. Tachyarrhythmias 50 mg once daily or bd, or 100 mg once daily. Hyperkinetic heart syndrome 25 or 50 mg once daily.
Hypersensitivity. NYHA class III or IV heart failure; shock; 2nd- or 3rd-degree AV block; SA block; sick sinus syndrome; bradycardia (<50 bpm); hypotension; advanced stages of peripheral occlusive disease; chronic obstructive airways disease; metabolic acidosis.
Patients w/ renal dysfunction. May mask signs of hypoglycemia. Discontinue therapy by slow downward titration in patients w/ CAD. Atenolol therapy in patients w/ pheochromocytoma must be accompanied by concurrent α-receptor blockade. Possible reduction of lacrimation. May impair ability to engage in activities requiring mental alertness. Pregnancy & lactation.
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