Depends: Would need to know why you are taking atenolol. Generally 25 mg of atenolol twice a day is a common dose. The slowing of heart to 58-60 would be expected. Headache is one of the non serious side effects known to be caused by atenolol. It is usually given as a once a day pill, tho it can be given twice a day. But u should check with ur doc since he/she knows ur case.
Answered 4/24/2016
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A doctor has provided 1 answer
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