Taking Pill Before, After Sex Cuts HIV Infection for Gay Men: Study

February 25, 2015 5:00 PM

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WEDNESDAY, Feb. 25, 2015 (HealthDay News) -- There's new evidence that gay men not infected with HIV can stay that way if they take a pill called Truvada in the days before and after a sexual encounter with an infected partner.

The strategy is known as "pre-exposure prophylaxis," or PrEP. Prior studies had suggested that chronic, daily use of Truvada (a combo pill of tenofovir plus emtricitabine) could slash rates of HIV transmission in partners where one person was already infected and the other was not.

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