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Mental & physical health

Prevent HIV with a pill (PrEP)

PrEP, or pre-exposure prophylaxis, is a way to prevent HIV infection by taking a daily pill. The medication used for PrEP is called Truvada.


PrEP is highly effective and approved by the FDA. When taken every day, PrEP has been shown to reduce the risk of getting HIV from sex by more than 90 percent, and among those who inject drugs, by more than 70 percent.

PrEP is most effective when it is taken every day. More missed doses means less protection against HIV.

PrEP does not protect you from other sexually transmitted infections like chlamydia, gonorrhea, or syphilis, so you should use PrEP together with condoms. PrEP can be taken with birth control or hormone therapy.

People who use PrEP must commit to taking the drug every day and seeing their health care provider for a follow-up appointment every three months.

Where and when

In Philadelphia, most people can get PrEP for little or no cost, even if they don’t have insurance. Talk to your doctor or visit one of the sites on this map.


Learn more about medical providers that offer PrEP to eligible patients.