The HIV pre-exposure prophylaxis (PrEP) consists of the daily use of antiretroviral drugs by people not infected by HIV, with the purpose of reducing the risk of infection by the virus in the sexual intercourses. Its correct use reduces the risk of infection by HIV by more than 90%. PrEP is indicated to people with risk and vulnerabilities added to HIV, such as transgender people, sex professionals, gays, and other men that make sex with men, and serodifferent couples.
The efficiency of the protection is related to adherence: so it is required the daily taking of the indicated doses, being it able to be added to other prevention measures, such as the use of preservatives and lubricating gel.