Question
Is PEP going to work of I took it 72 hours after exposure?
21 April 2022. Related: All topics, PEP/PEPSE.
Is PEP going to work of I took it 72 hours after exposure?
Answer
Most guidelines recommend that PEP needs to be used within 48 hours.
UK guidelines say that PEP can be taken up to 72 hours after sex where there is a risk of HIV. It is unlikely to work after this though.
Please see this link for info on PEP.
https://i-base.info/pep-and-prep/
Hi Younes, after 72 hours there is no evidence to suggest that taking PEP will be effective. Even though 75 hours is only 3 hours after the cut off, there is no evidence suggesting that there will be benefit to taking a course of PEP.