The Drug Accountability database collects information on medication dispensed to both inpatient and outpatient Veterans who receive health care from the VA. Information for the Drug Accountability database is extracted from a number of files found within the Veterans Health Information Systems and Technology Architecture (VistA) environment. Each month the extracted information is sent via MailMan messages from all VistA systems to the VA Pharmacy Benefits Management (PBM) office in Hines, Illinois. At Hines, quality assurance procedures are performed on the data and local pharmaceutical names are converted to common names before the information is entered into the Drug Accountability database. The users of this database include the PBM, Veterans Affairs Medical Centers (VAMCs), the Veterans Integrated Service Networks (VISNs), and the VA Research community.