I have been taking Atenolol for a number of years and it has kept my blood pressure stable. At one time at the same time I was also on Lisinoprol which had a number of side effects and didn't do much for keeping the bp under control. At the doctor's office in December 2018 my bp reading was 120/70 The dosage I take is one 25mg Atenolol at 6 a.m and another one at 6 p.m.