PEP, Post-Exposure Prophylaxis
PEP is a 28-day course of medicine taken after potential HIV exposure to prevent HIV infection. PEP must be started within 72 hours (3 days) after a possible exposure. PEP should be used only for infrequent exposures, and does not replace safe sex practices.
Things to Know About PEP
  • Must be prescribed by your health care provider or an emergency room doctor 
  • Should be initiated immediately after exposure to HIV or within 72 hours
  • Treated with 3 Antiretrovirals usually as a combination medication for at least 4 weeks
  • Follow up appointments at 1, 3 and 6 months
  • PrEP does not protect from other STD’s
Side Effects
  • Include nausea, diarrhea and fatigue
Before You Start
  • It is important to discuss all medications you take with your Pharmacist including over the counter medications as well as vitamins and supplements, as these can interact with antiretrovirals.
For more information about PEP, please go to CDC PEP Information
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