Nowadays, the great majority of the healthcare organizations has been criticized due to the high costs and low efficiency and are facing a critical situation aggravated by unmet demand and aging population. Availability of medicines is one of the clearest indicators that a healthcare organization is working efficiently. Medicines represent a large portion of the costs in the health services due to the significant value of these products and their storage and control requirements. Shortages of inventory have become a severe problem at the Brazilian healthcare organizations. The purpose of this work is to present the deployment of a Decision Support System which supports real-time inventory control and medicine tracking providing transparency and accessibility of this critical information at the Brazilian National Cancer Institute.