“…Furthermore, polypharmacy impacts significantly health outcomes and healthcare resources. While traditionally polypharmacy has been classified in terms of the number of medicines (usually defined as the use of five or more medicines) [14], Patterson et al suggested, as part of a Cochrane review in 2012 (later updated in 2014), that there should be a change in emphasis from 'inappropriate polypharmacy' (prescribing of multiple medicines which are either inappropriate or no longer indicated) to 'appropriate' or 'optimal polypharmacy' (appropriate prescribing of multiple medicines) [15][16][17].…”