Go to Content Go to Navigation Go to Navigation Go to Site Search Homepage

PrEP and PEP are two different medicines that help prevent you from getting HIV. PrEP stands for Pre-Exposure Prophylaxis and PEP stands for post-exposure prophylaxis. Their names are similar, but there are key differences between them:

PrEP and PEP are taken at different times:

  • PrEP is a pill you take every day or a shot you get every 2 months to help prevent HIV.
  • PEP is a short term, emergency medicine that you take after being exposed to HIV to prevent you from getting it. In order for PEP to work, it must be taken within 72 hours (3 days) after your possible HIV exposure, and then taken 1 or 2 times daily for the next 28 days.  

PrEP can be more effective than PEP:

  • If you use it correctly (on time, every time), PrEP can: 
    • Lower your chances of getting HIV from sex by up to 99%. 
    • Lower your chances of getting HIV from injection drug use by at least 74%.
  • PEP isn’t 100% effective, and it won't prevent future HIV infections like PrEP can. So it’s important to keep protecting yourself and others from HIV while you’re on PEP by using condoms or taking PrEP. 

Which one should I use, PEP or PrEP?

  • You can use PrEP if you’re sexually active and don't have HIV. The best way to find out if PrEP is right for you is by talking to a nurse or doctor, like the ones at your nearest Planned Parenthood health center.
  • Use PEP if you think you may have been exposed to HIV in the last 3 days. You can talk to a nurse or doctor, like the ones at your nearest Planned Parenthood health center to see if PEP is right for you. They can also help you understand if you might have been exposed to HIV and answer any questions or concerns you might have. 

Where can I get PrEP or PEP?

  • You can get PrEP from some health clinics, your nearest Planned Parenthood health center, your local health department, or doctors’ office.
  • If you think you’ve been exposed to HIV, you’re going to want to take PEP as soon as possible to prevent it. The quickest way you can get PEP will be from your nearest emergency room. PEP might also be available at some health clinics, your nearest Planned Parenthood health center, or your doctors’ office. Call first to make sure they have PEP in stock. 

How much do PrEP and PEP cost? Are they covered by my insurance? 

Learn more about PrEP and PEP.

Tags: HIV, Prep, pep

Explore more on

Español

This website uses cookies

Planned Parenthood cares about your data privacy. We and our third-party vendors use cookies and other tools to collect, store, monitor, and analyze information about your interaction with our site to improve performance, analyze your use of our sites and assist in our marketing efforts. You may opt out of the use of these cookies and other tools at any time by visiting Cookie Settings. By clicking “Allow All Cookies” you consent to our collection and use of such data, and our Terms of Use. For more information, see our Privacy Notice.

Cookie Settings

Planned Parenthood cares about your data privacy. We and our third-party vendors, use cookies, pixels, and other tracking technologies to collect, store, monitor, and process certain information about you when you access and use our services, read our emails, or otherwise engage with us. The information collected might relate to you, your preferences, or your device. We use that information to make the site work, analyze performance and traffic on our website, to provide a more personalized web experience, and assist in our marketing efforts. We also share information with our social media, advertising, and analytics partners. You can change your default settings according to your preference. You cannot opt-out of required cookies when utilizing our site; this includes necessary cookies that help our site to function (such as remembering your cookie preference settings). For more information, please see our Privacy Notice.

Marketing

On

We use online advertising to promote our mission and help constituents find our services. Marketing pixels help us measure the success of our campaigns.

Performance

On

We use qualitative data, including session replay, to learn about your user experience and improve our products and services.

Analytics

On

We use web analytics to help us understand user engagement with our website, trends, and overall reach of our products.