In response to the challenges of the 21st century, emerging countries have played an increasingly leading role in the global economy, and public health has been a notable feature of the government agendas in these countries. According to the IMF, Brazil is one of the countries with the greatest potential to stand out in this context. The quantity of research and development into technologies for drugs and medications is important for supporting innovation in the health sector. Information science can therefore help considerably in the analysis of patents, indicating trends, revealing opportunities for investors, and assisting the decision-taking process by private sector managers and government agents. This study is based on the extraction of valuable information contained in the hidden Web through technology foresight of products deemed strategic by the Brazilian Ministry of Heath, which are the target of public policies and investments by the state for domestic production.