Defining polypharmacy: in search of a more comprehensive determination method applied in a tertiary psychiatric hospital.

Introduction In the general population there has been an increasing trend towards polypharmacy, commonly defined as the concomitant use of five or more medicines, over the last number of decades. 1 The prevalence of polypharmacy is, in some ways, unsurprising in people with psychiatric illness, considering the complex mental health presentation and the high prevalence of

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