摘要
To the Editor:Off-label drug use(OLDU)refers to the use of a drug outside of the age,indication,weight,dose,formulation,or route of administration indicated on the label.It is a major concern and a common practice for clinicians around the globe,especially for pediatricians,owing to the lack of pediatric-specific drug information.[1]Research showed that US office-based physicians had ordered 41.2 million off-label orders per year for children and the trend had been increasing from 2006 to 2015.