Question

How effective is PEP?

17 October 2011. Related: All topics, PEP/PEPSE.

I have noted there is no clear guide line on the following two questions:

i) How effective are PEPs?

ii) What is the testing period after a 4 week course of nPEP?
Most of the info I find is quite old.

Answer

Answer: Simon Collins

There is not good data on effectiveness of PEP. This is because is it not ethical to study PEP in a study which randomises people who either getting or not getting PEP.

It is assumed to reduce the risk for some people, especially if started early.

Please see this link for more information about PEP:
https://i-base.info/qa/factsheets/pep-faq