OBJECTIVES: To assess the efficacy and costs of a calendar blister packaging intervention used to improve medication adherence.
METHOD: A parallel randomized controlled trial was conducted with 73 hypertensive patients (intervention group = 35, control group = 38) at Hospital Kulim, Malaysia, for 7 months.
RESULTS: The intervention group demonstrated a significant improvement in medication possession ratio (p
* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.