Doxy-PEP is now available free of charge from Sexual Health Sheffield

What is Doxy-PEP?

Doxy-PEP (Doxycycline Post-Exposure Prophylaxis) is a pill taken after sex to help prevent sexually transmitted infections certain sexually transmitted infections. While not 100% effective, current evidence from clinical trials suggests that doxyPEP can prevent over three quarters (75%) of both syphilis and chlamydia infections.

Doxycycline is unlikely to prevent gonorrhoea infections because most gonorrhoea in the UK is already resistant to doxycycline.

By taking 200mg of the antibiotic doxycycline within 24 hours of having sex (or no later than 72 hours) This can help prevent infection by the bacteria that causes syphilis and chlamydia.

DoxyPEP is only effective in preventing these bacterial STIs. It will not prevent infection of viruses like HIV or hepatitis B. If you are concerned that there has been a risk of HIV exposure please see our PEP information page here

Further information about Doxy-PEP is available in the Queer Health’s doxyPEP guide