Many newborns may need to be hospitalized and receive drugs during the first days of their lives. These drugs are fundamentally prescribed as off-label and unlicensed. This study aimed to investigate the amount of these kinds of drugs administered in the Neonatal Intensive Care Units (NICUs) of Abuzar and Imam Khomeini Teaching Hospitals in Ahvaz, Iran. | Pattern and extent of off-label and unlicensed drug use in neonatal intensive care units in Iran