Effect of value-added utilities on prescription refill compliance and health care expenditures for hypertension.

A randomised trial was undertaken to discern the effect of pharmacy-based value-added utilities on prescription refill compliance with antihypertensive therapy and subsequent health care expenditures. The subjects were 304 Medicaid beneficiaries from the state of Florida, previously untreated for mild to moderate hypertension, prescribed 240 mg of calcium channel antagonist verapamil once daily and monitored regarding prescription refill compliance and health service utilisation for one year. Subjects provided informed consent and were randomly assigned to one of four experimental groups: (1) the control cohort received standard pharmaceutical care with each dispensing of antihypertensive therapy, (2) the second cohort received standard pharmaceutical care and was mailed a medication-refill reminder ten days prior to each sequential refill date, (3) the third cohort received standard pharmaceutical care and was provided unit-of-use packaging with each prescription-refill request and (4) the fourth cohort received standard pharmaceutical care, mailed medication-refill reminders and unit-of-use packaging. Analysis of variance (ANOVA) procedures revealed that patients receiving mailed prescription-refill reminders, unit-of-use packaging or a combination of both interventions achieved a significant (P < or = 0.05) increase in the Medication Possession Ratio (MPR) for antihypertensive therapy relative to controls. Receipt of both interventions resulted in a significant (P < or = 0.05) improvement in the MPR for antihypertensive therapy relative to all other groups no significant difference was discerned between groups receiving either mailed prescription-refill reminders or unit-of-use packaging.(ABSTRACT TRUNCATED AT 250 WORDS)

RCT Entities:   Population Interventions Outcomes