He said this new study was the final piece needed to confirm that this intervention is safe and effective.
What we want to do in sexual health is give people choices, Klausner told Verywell.
We need new prevention tools, and doxycycline is a very important, safe, and effective prevention tool.

Photo Illustration by Michela Buttignol for Verywell Health; Getty Images.
The latest study is the third randomized controlled trial to show the same promising results.
Its immunomodulating effects can also be used to control inflammation in certain diseases, she said.
Doxycycline is a highly tolerated drug and has limited evidence for causing serious adverse effects, Bourgeois said.

Illustration by Zoe Hansen for Verywell Health
Its also relatively low-cost, making it accessible to a wide array of patients.
We dont know if it was an issue of women not taking the medication as they were supposed to.
So thats why its really recommended for individuals who were born biologically male right now.
The benefits are clear, but we want to mitigate the risk, Klausner said.
But sometimes condoms are not available, sometimes people can lose an erection with condoms, and so on.
Talk to your healthcare provider about whether youre a good candidate for this STI morning-after pill.
2022;23(1):495. doi:10.1186/s13063-022-06458-8