At Visit 2 (Week 3) Day 1 and 2. Biometric measurements: Body Weight and home B/P recordings, start 24 hour Urine collection. Review pill count for compliance, concomitant medications and adverse reactions will be obtained. Day 2: the subject will return the 24-hour urine collection. Review study removal criteria After taking the study medication for three weeks, the subject will return to the CRS unit for Visit 3 End of Study, (Week 7) Day 1 and 2 Visit 3 End of Study, (Week 7) Day 1 and 2. On day 1, Biometric measurements: Body Weight, start 24-h ABPM , Urine studies: start 24 hour Urine collection, safety laboratory evaluations: 8-10AM sitting upright Plasma Aldosterone/Renin Ratio, collect safety labs: bone morphogenetic protein, Mg/phosphorus level, parathyroid hormone, vitamin D level and HbA1c, document pill count, concomitant medications, home blood pressure readings and adverse Reactions. Day 2: the subject will return the 24-hour urine collection and the 24 hour ABPM will be removed If blood pressure is adequately controlled on study medication subject may continue study medication. If blood pressure not adequately controlled on study medication the subject may return to pre-study medication or a medication prescribed by physician.