Taking benicar (olmesartan) 40/ hct 12.5 but my potassium is 3.0 as the diuretic is causing potassium loss. any other meds to control htn & replace hctz diuretic?

Potassium sparing: Potassium sparing diuretics such as Amiloride are a a good alternative. Discuss with your physician.

Low potassium levels: Your low potassium (k) could be worsened by magnesium (m) loss due to hct. Your k won't be normal unless the m is repleted. At your age, with a history of cardiac disease, you may have some chronic kidney disease. Hct won't work if you've <50% of your kidney function left. If your BP isn't controlled on your meds, ask your doc to rx Furosemide (f) as a diuretic. F causes urine loss of m and k too.