How effective is PrEP in preventing HIV and STIs?

According to the CDC, if used correctly, PrEP can lower your chances of getting HIV from sex by up to 99%. PrEP can also lower your chances of getting HIV from sharing needles by more than 70%.

It’s really important to use PrEP correctly, meaning on time, every time. PrEP doesn’t work as well if you skip pills or miss your shot appointments. If you don’t take it on schedule, there might not be enough medicine in your body to block HIV.

It is important to know taking PrEP does not prevent other sexually transmitted infections.