In May 2011, the Brazilian Ministry of Health announced the distribution of the first batch of locally produced generic tenofovir disoproxil fumarate (TDF) to support its program of universal and free access for the treatment of HIV/AIDS. The inclusion of TDF in the public health program illustrates what has been considered the ‘Brazilian model’ of HIV/AIDS response, as it illustrates the current phase of the Brazilian pharmaceutical economy. Brazil is known for having managed to control the expansion of HIV/AIDS through a unique initiative combining the public health and the industrial production of generics. But, if at first local manufacturers could freely copy ARVs and produce cheaper generic versions that were delivered to the Ministry of Health, since the country started to grant patents on drugs in 1996, the sustainability of this policy has been challenged by the high cost of patented second‐line HIV/AIDS treatments. In order to assure continuity of the local production of ARVs, and keep the program of public health alive, Brazilians are now forced to deal with conflicts of drugs' intellectual property rights in order to open the path to generic production. This article aims to describe the experiences surrounding TDF in Brazil and the unprecedented conflicts and challenges it has brought for our different interviewees. Blurring the frontier between the public and the private, the TDF case was driven at the same time by an ethic of drug access and regulation of drug quality, which has inspired Brazilians to intervene and transform the world they live in.