The document outlines minimum requirements for a functional national pharmacovigilance system. It defines pharmacovigilance and describes the development of minimum requirements through consultation with experts. The minimum requirements include: having a national pharmacovigilance center with dedicated staff and funding; a national system for spontaneous reporting of adverse drug reactions using a standard form; a national database for managing reports; a national advisory committee to provide technical assistance on assessing and managing risks; and a communication strategy for routine updates and crisis response.