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.
Non-diabetic patients with Stage 1 hypertension (61% male; age 38 to 67 years) were randomized after a 4-week washout period to olmesartan medoximil 20 to 40 mg or atenolol 50 to 100 mg plus additional agents (hydrochlorothiazide 12.