In the Federal Republic of Germany, the proportion of people over 65 years of age in the total population will increase from 20 % in 2008 to 34 % in 2060 (Federal Statistical Office 2009). Population aging is closely related to the increase in multimorbidity (Saß et al. 2010) and a numerical increase in care in inpatient long-term care facilities (Mennicken / Augurzky 2013). The influence of age on drug consumption is considered to be well documented. In 2011, every GKV insured person aged 65 and over was treated with an average of 3.8 daily doses per day (Coca / Schröder 2012). In 2010, 42 % of Germans over 65 years of age with drug therapy took five or more active ingredients - 5.5 million people are at risk due to polypharmacy (Thürmann et al. 2012). Nursing home residents take an average of 6 different preparations per day (Bartholomeyczik / Wilm 2010).

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