Investigation of Drug-Drug Interactions in Patients Older than 65 Years with Polypharmacy

Abstract Objective: Our aim in this study is to evaluate the frequency of drug-drug interactions and related factors in patients aged 65 and older with multiple drug use. Materials and Methods: Individuals aged 65 years and older with 4 or more drugs use who applied to family health centers Kayseri province Melikgazi, Kocasinan, Talas, Sarıoğlan, Pınarbaşı, Yahyalı, Tomarza and Hacılar districts in Turkey between October 2020 and February 2021 were included in the study. A questionnaire form was filled out on a voluntary basis by face-to-face interview method, in which sociodemographic information, current diseases and drugs they used were questioned. The drug-drug interactions were checked using the 'Medscape Drug Interaction Checker' system.