Hypertension is present in 26.7% of the U.S. adult population between ages 20 to 74 (National Center for Health Statistics, 2006). The prevalence increases with age. Sixty-seven percent of adults aged 60 years or older have hypertension, a rise from 58% just ten years earlier (Ostchega, Dillon, Hughes, Carroll, & Yoon, 2007). Uncontrolled hypertension increases the risk for heart attack, stroke, congestive heart failure, and kidney disease (Chobanian et al., 2003; Stamler, Stamler, & Neaton, 1993; Vasan et al., 2001). Maintaining a normal blood pressure has been shown to be associated with a greater probability of living to age 85, and of living to age 85 without major health concerns (Terry et al., 2005). The most common treatment for managing hypertension involves the use of antihypertensive medications. These medications have been shown to effectively lower blood pressure (BP) and prevent the development of serious sequelae (Chobanian et al., 2003). Unfortunately, failure to adhere to antihypertensive medication regimens can impede the effectiveness of therapy.