Pharmacovigilance is a set of activities aimed at identifying, assessing, understanding and preventing adverse events, in other words, any unfavourable and undesirable effect that arises after taking a medicinal product.
Reporting an adverse event associated with the use of a medicinal product is extremely valuable because it allows keeping the doctors who prescribed it well informed, safeguarding the patients who are taking it and ensuring a favourable benefit-risk balance for the population.