Treatment of hypertension is the most common reason for non-pregnant patient visits to a doctor's office in the United States [1]. National data estimates that 29 to 31 percent of U.S. adults over age 18 (58 to 65 million individuals) suffer from hypertension [2, 3]. Worldwide, hypertension contributed to 7.6 million premature deaths and 92 million deaths and disability-adjusted life years (DALYs) in 2001, with a disproportionate effect among low- and middle-income economies and people between the ages of 45 and 69 [4].