There seems to be some confusion, PEP = Post Exposure Prophylaxis PEP ≠ Pre-Exposure Prophylaxis One friend got this wrong today. I’m reposting the excellent explanation on PEP from GMFA…. PEP (Post Exposure Prophylaxis) PEP is a course of HIV medication which you can take if you have been at risk of HIV infection. The course of HIV medication lasts 28 days and, if taken within 72 hours of putting yourself at risk, may be able to prevent you from becoming infected with HIV. PEP stands for Post Exposure Prophylaxis – in other words it is a form of protection (against … Continue reading PEP – is Post not Pre!