RESUMO
Pharmacovigilance is defined by the World Health Organization as the science and practice related to the detection, assessment, understanding and prevention of adverse drug reactions (ADRs). In a well-functioning pharmacovigilance system, information on possible ADRs is collected from patients, health professionals and marketing authorisation holders. Of all data sources for drug safety monitoring, spontaneous reporting systems provide the highest volume of information at the lowest maintenance cost and have proven their value in the early detection of product-related safety issues. At the beginning of 2018, the Brazilian Health Regulatory Agency (Agência Nacional de Vigilância Sanitária-Anvisa) decided to replace the national electronic reporting system in Brazil (Notivisa) with the system provided by Uppsala Monitoring Centre (VigiFlow) for ADR reporting. This paper describes that process and reports on the progress made by Anvisa in terms of making Brazil compliant with international pharmacovigilance standards as well as significantly increasing the number of individual case safety reports collected.