â¢Migraine headaches -- spots of light, halos, or zigzag patterns are common symptoms prior to the start of the headache. Other potential causes of vision problems include fatigue, overexposure to the outdoors (temporary and reversible blurring of vision), and many medications.
The usual initial dose of atenolol (Tenormin) for adult patients with hypertension is 50 mg taken once a day. The maintenance dose may be adjusted after a couple of weeks.
Usual Adult Dose for Hypertension. Initial dose: 50 mg orally once a day. Maintenance dose: 25 to 100 mg orally per day in 1 or 2 divided doses. Comments: -If hypertensive patients with left ventricular hypertrophy or type 2 diabetic nephropathy patients require titration from initial dose, increase to 100 mg orally once a day.