An eMAR (electronic medication administration record) is used to record drugs administered to patients in a healthcare facility. It replaces paper MARs (medication administration records) and improves the medication administration process. The eMAR interfaces prescription data between physicians, pharmacies, and nurses to ensure accurate and timely medication orders and administration. It allows physicians to order drugs digitally, prevents transcription errors, and helps nurses verify the five rights of administration efficiently at the patient's bedside.