• Natali Jokanovic, Edwin C K Tan, Michael J Dooley, Carl M Kirkpatrick, Rohan A Elliott, and J Simon Bell.
• Centre for Medicine Use and Safety, Faculty of Pharmacy and Pharmaceutical Sciences, Monash University, Melbourne, Victoria, Australia. natali.jokanovic@monash.edu.
• J Eval Clin Pract. 2016 Oct 1; 22 (5): 677-82.

Rationale, Aims And ObjectivesThe prevalence of polypharmacy in residential aged care facilities (RACFs) is high and increasing. Although not necessarily inappropriate, polypharmacy has been associated with drug interactions, adverse drug events, geriatric syndromes and hospital admissions. The aim of this study was to identify and prioritize factors contributing to the increasing prevalence of polypharmacy in RACFs.MethodsSeventeen health care professionals from metropolitan and regional Victoria and South Australia identified and prioritized factors using a modified nominal group technique.ResultsThe top five factors ranked from most important to fifth most important were 'changes in resident mix', 'increasing numbers of prescribers and the reluctance of one prescriber to discontinue a medicine commenced by another prescriber', 'better adherence to clinical practice guidelines', 'increasing reliance on locums' and 'greater recognition and pharmacological management of pain'.ConclusionsReasons for the increase in polypharmacy are multifactorial. Understanding the factors contributing to polypharmacy may help to guide future research and develop interventions to manage polypharmacy in RACFs.© 2016 John Wiley & Sons, Ltd.

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