 As a treatment for people who already have HIV, TDFFTC is approved for use in most of the world, including Australia. As a medicine for PrEP, to lower chances of HIV in those who are not infected, TDFFTC has been approved in the US, and Truvada which contains TDFFTC made by Gilead Sciences Inc. was approved for PrEP in Australia in May 2016. At the start of the project, the generic TDFFTC is not approved in Australia for the use as PrEP but it may become registered for use and more freely available in Australia in the future. 