Uppsala Monitoring Centre (UMC) UMC was established in Uppsala, Sweden in 1978 as the World Health Organization (WHO) Collaborating Centre for International Drug Monitoring. UMC operates the technical and scientific aspects of the WHO’s worldwide pharmacovigilance network. Iys main tasks are: providing independent and high-quality medical reference sources globally, exploring the risks and benefits of medicines, advancing the science of pharmacovigilance, transforming medicine safety data into best practice, building global pharmacovigilance capacity, encouraging local and regional pharmacovigilance initiatives by opening access to adequate resources and providing tailor-made guidance, building partnerships that bring together resources, expertise, and a shared vision, turning knowledge into action by enabling stakeholders to identify issues, find answers. UMC maintains the WHODrug Global which is the international reference for medicinal product information. With its unique drug code hierarchy and extensive coverage, it provides a consistent drug dictionary with exact terminology when coding concomitant medications. The dictionary is used to identify drug names and evaluate medicinal product information, including active ingredients and products’ anatomical and therapeutic classifications, from nearly 150 countries.