For the global community to be able to achieve ambitious targets relating to the prevention and treatment of HIV, viral hepatitis and sexually transmitted infections (STIs), multiple types of medicines must be widely accessible to all affected populations in all countries. The purpose of this report is to provide forecasts of future demand for medicines used in the fields of HIV, viral hepatitis and STIs. This report jointly presents medicines forecasts across three disease areas in recognition of the benefits of addressing HIV, viral hepatitis and STIs in a coordinated manner.