Learning About HIV Post-Exposure Prevention (PEP)
HIV (human immunodeficiency virus) is a virus that attacks the immune system. You can get HIV during sex
(vaginal, anal, or oral sex) with someone who has it. You can get it if you're sexually assaulted. You can
also get it if you share a needle, a syringe, or other drug equipment.
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If you think you may have been exposed to HIV, see a doctor right away. There is treatment that can
help.
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The treatment is called post-exposure prophylaxis (PEP). It's medicine that can help prevent you from
getting HIV.
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How is it given?
Your doctor will start you on PEP.
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Start PEP as soon as possible. Every hour counts. It must be started
within 3 days (72 hours) after you were exposed to HIV.
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Take your medicines exactly as prescribed. PEP treatment lasts 28
days.
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Follow up with your doctor. You'll need an HIV test at the start and
at the end of treatment.
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Talk to your doctor about other tests. The doctor might recommend
things like testing you for hepatitis or other infections. And you may get a pregnancy test.
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Ask your doctor about PrEP (pre-exposure prophylaxis). If you're
sometimes at risk of being infected with HIV, talk to your doctor about taking medicines that may
lower your risk.
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Current as of: June 12, 2023
Content Version: 14.0
Care instructions adapted under license by your
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