The purpose of drug information service is

Promote rational drug use, improve drug treatment effect, and realize the role change of pharmacists. Drug information consultation service is an essential skill for pharmacists. Its core is to provide high-quality and efficient drug-related information for clinic with the concept of evidence-based pharmacy, to help solve patients' practical problems, with the aim of promoting rational drug use, improving drug treatment effect and realizing the role change of pharmacists. It can not only provide medication information services for a class of patients, but also provide medication information services for a class of patients, such as formulating hospital prescription sets and standard treatment guidelines.