PEP Guide

PEP PEP (after exposure)

Post-exposure prophylaxis (PEP) is an HIV prevention strategy for people without HIV. Anti-HIV medication is taken to reduce the risk of becoming infected after a potential HIV exposure.

PEP is used in emergency situations when someone may have been exposed to the virus and has to be started within 72 hours. PEP is very effective at reducing the risk for HIV infection if started within the 72-hour timeframe and then taken for 28 days.

Is PEP right for you?

  • If you are HIV negative or don't know your status
  • If you may have been exposed to HIV in the last 72 hours during sex, while sharing needs, or were sexually assaulted

Call our PEP staff at (520) 609-1219


Where can I get PEP?

If you have been exposed in the last 72 hours the following places can help:

  • Petersen HIV clinics can help. Call our PEP staff at (520) 626-9458 for more information
  • Emergency Department at Banner University Medical Center's Tucson Campus- 1501 N. Campbell Ave, Tucson, AZ 85724
  • Pima County Health Department 520-724-3995

How can I pay for PEP?

Most insurance plans will cover PEP. Assistance programs are available to help with copays or if it is not available under your plan. If you are uninsured, it is still possible for you to access PEP.

Because it is essential to start PEP within 72 hours of possible exposure, please call our PEP staff for assistance in accessing PEP medications at (520) 626-9458 or go to the Emergency Department.