Background: Drug-induced liver injury is still misunderstood in Brazil due to diagnostic difficulties or lack of reporting incidents.
Objective: To assess the frequency of adverse events related to the use of medicines in a primary healthcare unit, in a city locate southwestern of the state of Bahia, Brazil.
Methods: Prospective study conducted at the Primary Center for Specialized Health (CEMEA), February at August of 2013 in Vitoria da Conquista, Bahia, Brazil.