HIV-Post Exposure Prophylaxis

Post-exposure prophylaxis (PEP) is a treatment that can prevent HIV infection after the virus has entered a person's body. It is only given to people at high risk of HIV such as men who have unprotected anal sex with men.

Post Exposure Prophylaxis (PEP) is an emergency measure to be used as a last resort, e.g. if a condom breaks or you have a “slip up” from your usual safer sex routine.
PEP is not always guaranteed to work but has a high success rate.
PEP is free of charge but can only be prescribed by doctors if certain criteria are met.
PEP has to be started within 72 hours of unprotected sex.


The Sexual Health department in NHS Ayrshire & Arran can provide PEP. If the Sexual Health department is closed, please contact Accident and Emergency. Regular family doctors (GPs) do not prescribe PEP.
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