FDA Approves First Drug to Prevent HIV Infection

FDA Approves First Drug to Prevent HIV Infection: US regulators took a step into the unknown this week when they approved the first drug to prevent HIV infection. US Food and Drug Administration (FDA) commissioner Margaret Hamburg hailed the pill, Truvada, as a tool for reducing the rate of infection in the United States, where 50,000 people are diagnosed each year. But the drug combines low doses of two anti­retroviral agents normally used to treat infection, and some researchers fear that its use in healthy people could have unacceptable side effects and spark the emergence of resistant viruses