Pre-exposure prophylaxis or PrEP refers to the use of HIV medication by people who are HIV negative in order to reduce their risk of HIV infection. When taken on a daily basis, PrEP ensures there is enough HIV medication in the body to significantly reduce the risk of becoming infected with HIV if exposed during unprotected sex.
The HIV medication used is called Truvada and it contains two antiviral medicines, Tenofovir and Emtricitabine, which are also used to treat people who already have HIV infection. These are the same drugs used to suppress the virus in people living with HIV.
When considering the role of PrEP in preventing HIV, there are other things to think about – especially STIs which PrEP does not protect from, whether you're able to adhere to taking a daily pill, and possible side effects.
Using condoms and lube for anal and vaginal sex is the most effective way to prevent sexual transmission of HIV as well as other STIs.Read more about PrEP