If it has been less than 72 hours since  your possible exposure to HIV, you can take PEP or Post Exposure Prophylaxis, a pill taken for 28 days that is almost 100% effective against HIV.
Act now because every hour counts. 

You will not know if you have contracted HIV, because of the window period, the one to three months needed for an HIV test to detect if you have HIV. 

Is PEP right for you?              Graphic describes difference between PEP and PrEP. For information call 406 444-3565

If you are HIV-negative or don't know your HIV status, and in the last 72 hours you:

  • May have been exposed to HIV during sex (for example if the condom broke).
  • Shared needles, syringes, or other equipment to inject drugs.
  • Were sexually assaulted

Where do I find PEP?  

Contact your provider or go to your nearest urgent care or emergency room.

Can I take a round of PEP every time I have sex without a condom? 

  • No, PEP should only be used in emergency situations.
  • If you have an ongoing risk for HIV, ask your health care provider about PrEP, (Pre-Exposure Prophylaxis), a daily pill to prevent HIV.

More information

Resources for Consumers
Basic PEP Q&As for Consumers from the CDC including information on workplace exposure and getting help paying for PEP.
PEP 101 Consumer Info Sheet

Resources for Providers
CDC Resources for Clinicians for Preventing New HIV Infections
National Prescribing Guidelines from the Centers for Disease Control (CDC)

PEP Consultation Service for Clinicians
1-888-448-4911 9:00 am - 2 am ET