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PEP (Post-Exposure Prophylaxis) helps prevent HIV Infection after possible exposure.

If you think that you have been exposed to HIV, it is very important that you act sooner rather than later. PEP (Post-Exposure Prophylaxis) is a month-long course of drugs that help prevent HIV infection that is taken after a possible exposure to HIV. 

The sooner someone starts PEP, the better, but it must be started within 72 hours (3 days) after a possible exposure to HIV. 

If you think that you may have been exposed to HIV, PEP may help prevent acquiring HIV. The sooner someone starts PEP, the better, but it must be started within 72 hours (three days) after the possible HIV exposure incident. 


Reasons to take PEP may include:

  • Having receptive anal sex without a condom when you’re not using PrEP, with someone whose HIV status you do not know 
  • Having receptive anal sex without a condom with someone who is HIV positive and does not have an undetectable viral load 
  • A condom breaking or slipping during sex 
  • Sharing injecting equipment 

PEP is not a cure for HIV. PEP can prevent HIV from establishing itself in the body when a course of PEP is started within 72 hours after a possible exposure. 

Find out more about PEP at www.getpep.info 

You can access PEP from the Accident & Emergency Departments of Canberra Hospital and Calvary Hospital, and during business hours at the Canberra Sexual Health Centre. 

Please be aware that PEP is not a cure once HIV has established infection in the body. However, if taken within 72 hours of exposure to HIV, PEP can, in most cases, prevent HIV from establishing itself in the body. 

We encourage people to act as quickly as possible to access PEP. 

If you find that you need to access PEP more than once, you might want to consider PrEP.