Medicine is one of the supporting assets for patient survival. The occurrence of a drug vacuum or drug excess will have an impact medically and economically. The Ernaldi Bahar Hospital Pharmacy Installation experienced shortages and excess of drug stock for 3 consecutive quarters, namely: in 2018 there were 29 items, 35 items and 40 items, while the stockouts in 2019 were 25 items, 27 items and…