Diabetes Care, Vol 23, Issue 2 153-156, Copyright © 2000 by American Diabetes Association
Can medication packaging improve glycemic control and blood pressure in type 2 diabetes? Results from a randomized controlled trial
D Simmons, M Upjohn and GD Gamble
Department of Rural Health, University of Melbourne, Shepparton, Victoria, Australia. d.simmons@medicine.unimelb.edu.au
OBJECTIVE: To assess the impact of calendar blister pack (CBP) use on
glycemic and blood pressure control. RESEARCH DESIGN AND METHODS: We
conducted an 8-month randomized controlled double-blind study among
diabetic patients with poor glucose control (HbA1c >9.0%) in an urban
area of South Auckland, New Zealand, with a high proportion of Maori and
Pacific Islands people. Subjects included 68 consecutive patients, of whom
50% were prescribed three or more medications per day RESULTS: HbA1c was
reduced by 0.95+/-0.22% in the CBP group and 0.15+/-0.25% in the control
group (P = 0.026). Diastolic blood pressure decreased 5.8+/-1.5 mm Hg in
the CBP group and increased 0.1+/-1.9 mm Hg in the control group (P =
0.0041). Systolic blood pressure did not change significantly CONCLUSIONS:
CBPs should be considered among diabetic patients with poor glycemic
control receiving multiple medications.