The drug, identified by its model title Truvada, is developed by U.S. drugmaker Gilead Sciences. It was first authorised to be used as a pre-exposure prophylaxis (PrEP) — remedy to forestall HIV infections — within the United States in 2012. It has since been used globally as a normal methodology to forestall an infection with HIV, the virus that causes AIDS.
PrEP reduces the chance of an infection throughout intercourse by about 99% when taken as prescribed, and through intravenous drug use by at the very least 74%, in keeping with the U.S. Centers for Disease Control and Prevention.