... 4-5 years ago the benicar, hydrochlorothiazide was added and the atenolol was increased to the 100mg from 50mg. I have had a terrible time losing weight since then. Have counted calories and been on Weight Watchers. I exercise at least 5 times a week. I am female 66yrs old. Could the increase in atenolol be causing a weight loss problem? Thank you