First, I am not a doctor or nurse. However very familiar with hypertension & DD. May I ask what your BP readings have been? Sometimes DD is very mild and the risk does not out weigh the benefit for treatment of the BP. Have they confirmed the DD is the cause of elevated BP? My BP was 300/200's when I was admitted to St Mary's Hosp Mayo Clinic. I have DD & hyperaldosteronism. DD is minimal problem. Regular tachycardia which we treat with another hypertension medication along with three others. I would however recommend PGx test for medication management before starting new meds. It will eliminate guessing game on which medications you respond to best