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Can you start PrEP after you’ve been exposed to HIV?

PrEP (pre-exposure prophylaxis) is only for people who have an ongoing substantial risk of HIV infection. For those who have had a single high-risk event of potential HIV exposure—such as sex without a condom, needle-sharing injection drug use or sexual assault—there is another option called postexposure prophylaxis, or PEP. PEP must begin within 72 hours of exposure.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.