Drug utilization research involves analyzing and evaluating patterns of medication use in order to improve patient care, optimize drug therapy, and minimize risks associated with medication errors and adverse events. This research area focuses on factors such as prescription rates, adherence to treatment regimens, appropriateness of drug therapy, and the impact of drug utilization on health outcomes. Researchers in this field may use a variety of methods, including surveys, data analysis, and observational studies, to examine how drugs are prescribed, dispensed, and taken by patients in real-world settings. The goal of drug utilization research is to provide evidence-based recommendations for improving the quality and safety of medication use.