It is possible, when indicated, to use antiretroviral drugs to attempt to stop HIV transmission after a high risk sexual contact (such as unprotected sex/broken condom with a person living with HIV or likely to be HIV positive).
Research is still being undertaken into exactly how effective PEP is at stopping HIV infection but it is likely to offer a significant reduction in risk. We will only prescribe PEP if it is less than 72 hours since the sexual contact and recommend that PEP is started as soon as possible. The PEP course lasts 4 weeks, and this is generally well tolerated.
If you feel you may need PEP please contact our Central London clinic 0207 631 0090.