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Use of potentially inappropriate medications by the elderly at home.

The goal of this study was to assess how often potentially inappropriate medicines are used by the elderly at home, and analyze its clinical significance. This is a retrospective cross-sectional study, a segment of a study on the use of medication conducted at a public hospital. Inappropriate medication was classified according to the three criteria in the 2012 Beers List. 190 elderly were included in this study; the prevalence of the use of inappropriate medicines was 44.2%. The therapeutic classes of most often used inappropriate medicines were non-steroid anti-inflammatories, cardiovascular agents, benzodiazepines and antidepressants. We found a positive association between the use of inappropriate medicines and polypharmacy, polypathology and hypertension. The 2013 Rename identified 35 inappropriate drugs (34.3%). The study showed a high prevalence of using inappropriate medicines by the elderly. The clinical consequences of using inappropriate medicines are important for public health due to the risk of adverse events and a negative impact on elderly functionality. When it comes to caring for the elderly, it is important to develop measures to foster the rational use of medication.