May 8, 2023 — “Think of it as a morning after pill, but for STIs,” was how Aniruddha Hazra, MD, put it. Hazra specializes in infectious disease at University of Chicago Medicine Infectious Disease and Global Health unit. 

The cause of the grand statement? New research that shows the antibiotic doxycycline reduces the onset of HIV and sexually transmitted infections (STIs) by two-thirds after exposure.

“So while a morning after pill can be a prophylaxis (or prevention) against pregnancy, doxycycline can be used shortly after sexual contact, or potential exposure with an STI to prevent acquisition of an infection,” Hazra, who was…


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