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Pharmacy 2017, 5(4), 58; doi:10.3390/pharmacy5040058

Analysis of a Community Pharmacy Intervention to Improve Low Adherence Rates to Oral Diabetes Medications

Department of Pharmacy Practice and Science, University of Iowa College of Pharmacy, PGY1 Community Pharmacy Practice at Time of Study, Iowa City, IA 52242, USA
Department of Pharmacy Practice and Science, University of Iowa College of Pharmacy, Iowa City, IA 52242, USA
Authors to whom correspondence should be addressed.
Academic Editors: Anandi Law and Micah Hata
Received: 24 August 2017 / Revised: 17 September 2017 / Accepted: 13 October 2017 / Published: 19 October 2017
(This article belongs to the Special Issue Impact of Pharmacists in the Community Setting)
View Full-Text   |   Download PDF [1260 KB, uploaded 19 October 2017]   |  


For patients with diabetes, suboptimal medication adherence contributes to disease progression, complications, and increased healthcare costs. Identification of, and intervention for patient-identified reasons for nonadherence are essential to improving medication adherence. This prospective, quality improvement study was conducted at an independent community pharmacy in the Mid-West United States. Patients with a proportion of days covered (PDC) for their oral antidiabetic medications of less than 80% were contacted by telephone and interviewed by a clinical pharmacist. The interviews and corresponding adherence interventions were guided by an abbreviated version of the Drug Adherence Work-Up (DRAW©) tool that focused on oral medications for diabetes. The change in PDC 120-days post-interview was assessed to determine the change in adherence rates. Patients receiving the pharmacist-delivered adherence intervention had significantly higher 120 day PDC values which are likely to indicate more regular medication-taking at home. Almost half of study patients signed up for medication synchronization and these patients trended toward higher PDC values, although the relative difference was not statistically significant from those receiving the intervention and not opting to have their medications synchronized. View Full-Text
Keywords: diabetes; medication adherence; proportion of days covered diabetes; medication adherence; proportion of days covered

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Singleton, J.; Veach, S.; Catney, C.; Witry, M. Analysis of a Community Pharmacy Intervention to Improve Low Adherence Rates to Oral Diabetes Medications. Pharmacy 2017, 5, 58.

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