Elderly patients are at greater risk of experiencing adverse drug events than the adult population as a whole. Older patients are more likely to be frail, have more medical conditions, and are physiologically more sensitive to injury from certain classes of medication. Researchers examined a large cohort of Irish outpatients age 65 and older to determine the relationship between hospital discharge and potentially inappropriate medication prescribing. Approximately half of the 38,229 patients studied were prescribed a medication in contravention to the STOPP criteria. The risk of potentially inappropriate prescribing increased after hospital discharge, even when using multiple statistical techniques to control for medical complexity. An accompanying editorial delineates various vulnerabilities that predispose older patients to adverse events during the transition from hospital to home. A recent PSNet perspective discussed community pharmacists' role in promoting medication safety.