Mineralocorticoid Receptor, Coronary Microvascular Function, and Cardiac Efficiency in Hypertension

After the Pre-Treatment Assessment, participants in the eplerenone arm will be given 50 mg eplerenone. At 2 weeks, eplerenone will be increased to 100 mg.

After the Pre-Treatment Assessment, participants in the chlorthalidone arm will be given 12.5 mg chlorthalidone + 10 mEq potassium. At 2 weeks, chlorthalidone will be increased to 25 mg + 20 mEq potassium.

After the Pre-Treatment Assessment, participants in the chlorthalidone arm will be given 12.5 mg chlorthalidone + 10 mEq potassium. At 2 weeks, chlorthalidone will be increased to 25 mg + 20 mEq potassium.