I’ve heard about taking a pill for 28 days after you’ve been exposed to HIV (“PEP” or post-exposure prophylaxis). Are PEP and PrEP the same?

PEP, post-exposure prophylaxis, is medication taken immediately after exposure to HIV (within 72 hours) and continued for 28 days.

PrEP, pre-exposure prophylaxis, is taken before exposure to HIV and continued for your “season” of HIV risk.