The combined incidence of gonorrhea, chlamydia, and syphilis was lower by two thirds with doxycycline postexposure prophylaxis than with standard care, a finding that supports its use among MSM ...

Doxycycline is a class of medications traditionally used to treat bacterial STIs after someone has been infected. Yet recent research suggests that one 200mg dose of the drug can be effective in ...

A sexual health strategy called doxy-PEP, in which people who have a history of sexually transmitted infections (STIs) take doxycycline after condomless sex, is highly effective. But it is still ...