UK Guideline for the use of post-exposure prophylaxis for HIV following sexual exposure.

We present the British Association for Sexual Health and HIV (BASHH) guidelines for post-exposure prophylaxis after sexual exposure (PEPSE) to HIV. This document includes a review of the current data to support the use of PEPSE, considers how to calculate the risks of HIV infection after a potential exposure, and provides recommendations on when PEPSE would and would not be considered. Other areas included are the possible impact on sexual behaviour, cost-effectiveness, and issues relating to service provision.