These Morning-After Pills May Prevent S.T.I.’s, Researchers Say

March 9, 2023

(New York Times) – A single dose of doxycycline taken within 72 hours of unprotected sex dramatically cuts the risk of a bacterial S.T.I., studies have found. The approach seems most effective for preventing chlamydia and syphilis, and slightly less so for preventing gonorrhea. The strategy has been shown to work among trans women and men who have sex with men who are at high risk for acquiring an S.T.I. But the pills have not shown a benefit in cisgender women (whose gender identity matches the sex assigned at birth). (Read More)