Pre-exposure prophylaxis (PrEP) was approved in the US in July 2012, following trials showing its efficacy in preventing sexual transmission of HIV. But, as Gus Cairns finds out, it remains a controversial addition to the HIV prevention options available to gay men in the US.
Fridae’s Men's sexual health columnist Jan Wijngaarden discusses PrEP, PEP and iPrEP, and the extent to which anti-retroviral drugs for HIV can indeed help prevent HIV (but not STI) infection.