Prevent HIV infection after sex / Post Exposure Prophylaxis (PEP)

Taking medication to reduce the chances of HIV infection AFTER sex is recommended in certain circumstances.

This medication needs to be started within 3 days (72hrs) of sex and ideally as soon as possible.

Using medication to prevent HIV before sex (PrEP) is different

Find out if PEP is suitable for you here: 

If you think PEP is suitable for you please contact your nearest service:

• A local sexual health clinic – search for your nearest clinic here:
  • London SXT: Sexual health information in under a minute 
  • Getting it on

Outside of opening hours please attend your nearest Accident & Emergency Department.