Although health information technology has been shown to improve patient safety, problems with implementation and user interface design persist. Unintended consequences associated with the use of electronic health record (EHR) and computerized provider order entry (CPOE) systems remain a safety concern. Pediatric patients may be particularly vulnerable to medication errors associated with EHR usability. Researchers examined 9000 safety event reports over a 5-year period from 3 pediatric health care facilities and found that 5079 events were related to the EHR and medication. Of these, 3243 identified EHR usability as contributing to the event, 609 of which reached the patient. Incorrect dosing was the most common medication error detected across the three facilities. A previous WebM&M commentary highlighted the unintended consequences of CPOE.