Pre-exposure prophylaxis (also known as PrEP for short) is an increasingly popular method of HIV prevention among persons at the highest risk of infection. It involves taking one pill per day that combines two different drugs (tenofovir and emtricitabine). These are actually the same drugs used to treat people who already have HIV; however, when someone who is uninfected takes them, it makes it very difficult for HIV to establish an infection in the body should that person be exposed to the virus through sexual activity or injection drug use.
PrEP was originally approved by the FDA five years ago and it’s estimated that 136,000 people are now taking it—a figure that continues to climb significantly year over year. The vast majority of the people taking PrEP in the United States are gay and bisexual men, given that they’re the group that’s most at risk for contracting HIV here. However, as more men who have sex with men have begun taking PrEP, concerns have been raised over whether this drug might be changing their sexual behaviors.Read More