The technical standard of health Drug Dispensing System Single-Dose (DDSSD) is to promote access and the safe and rational use of medicines and surgical medical equipment in hospitals, through the proper implementation and DDSSD strengthening of the Departments and Pharmacy Services health sector establishments. This is a descriptive study of relevant information that reflects the economic benefit represented the implementation of the provision of medical supplies through the services DDSSD Rheumatology, Endocrinology and Dermatology (4A) and General Surgery (4B) Hospital Nacional Edgardo Rebagliati Martins (HNERM) during the first year of implementation. Objective: To determine the economic benefit that represented the implementation of the provision of medical supplies by the DDSSD HNERM two services during the period 15 August 2008 - August 31, 2009 for the period August 1, 2007 - 14 ...