• Markus Messerli, Noortje Vriends, and Kurt E Hersberger.
• Pharmaceutical Care Research Group, Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland.
• Patient Prefer Adher. 2018 Jan 1; 12: 1071-1078.

BackgroundSince 2010, Swiss pharmacists have been offering their patients a Polymedication Check (PMC), a new cognitive pharmacy service in the form of a medication review for patients taking ≥4 prescribed medicines for a period >3 months. While a first publication of this project reported on the impact of the PMC on patients' adherence, the present paper focuses on humanistic outcomes.MethodsThis randomized controlled trial was conducted in 54 Swiss community pharmacies. After recruitment, the intervention group underwent a PMC in the pharmacy (T-0) and 28 weeks after T-0 (T-28), while the control group did not receive the PMC until 28 weeks after the study started (T-28). A clinical psychologist, blinded to the intervention, interviewed the patients 2 weeks (T-2) and 16 weeks (T-16) after T-0. Interviewer and patient both rated patient's knowledge of own medicines use. Furthermore, patients reported satisfaction with their pharmacy and appraisal of their medicines use. The availability of a written medication plan was assessed at T-16. Acceptance of the service was measured using a patient's self-report questionnaire at T-28.ResultsGeneral linear model analysis for knowledge about medicines revealed a significant effect on the factor "group" (P=5.86, p=0.016), indicating that the intervention group had higher ratings for knowledge about their medication at T-2 and T-16 compared to controls. The majority (83%) of patients judged the counseling by the pharmacist as being helpful for their daily medication management. Availability of a written medication plan was comparable in both groups (52.5% vs 52.7%, p>0.05).ConclusionFor the first time, the benefits of a complex pharmacist-led intervention were evaluated in Swiss primary care with a randomized controlled trial. The PMC increased patients' subjective knowledge of their medicines compared to no medication review. The effect remained sustainable over time. Recommendations resulting from the pharmacist-led service were highly appreciated by the patients.

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