Hospital pharmacists manage every area of medicine use in hospitals, from procurement, dispensing, preparation, delivery, administration, and monitoring to surveillance. 1-3) A prominent aspect of the pharmacist's multifaceted role is their pivotal responsibility as credible guardians against medication-related harm. The International Pharmaceutical Federation directs that hospital pharmacists should establish a pharmacovigilance and reporting system for medication errors, including near misses. 2)The Korean Patient Safety Act (Act no. 13113, January. 28. 2015) categorized pharmacists as personnel with exclusive rights over actions related to patient safety and medical service quality improvement. 4) Thus, in the area of patient safety, the weight of the pharmacists` role is becoming more important.Typical patient safety for a pharmacist involves patient education, multidisciplinary teamwork, medication assessment,