pre-exposure prophylaxis

variants: or less commonly preexposure prophylaxis

Definition of pre-exposure prophylaxis

: a preventive treatment for HIV infection in which antiretroviral drugs are taken by an uninfected person who is at a high risk of contracting HIV In some quarters, the idea that healthy gay men should take a medication to prevent infection—an approach called pre-exposure prophylaxis, or PrEP—has met with hostility or indifference.— David Tuller abbreviation PrEP

Examples of pre-exposure prophylaxis in a Sentence

Recent Examples on the Web Monkeypox vaccination can be used as pre-exposure prophylaxis (PrEP), post-exposure prophylaxis (PEP) and outbreak response PEP (PEP++), according to the CDC. Virginia Langmaid, CNN, 14 July 2022 The legislation, which passed by voice vote and was sponsored by state Senator Julian Cyr, would allow pharmacies to dispense a 60-day supply of HIV pre-exposure prophylaxis, or PrEP, without a prescription. Globe Staff,, 30 June 2022 Of the roughly 4,000 patients who are eligible for HIV pre-exposure prophylaxis (PrEP) within the health system, only 400, or 10%, are getting treatment. Kristen Jordan Shamus, Detroit Free Press, 20 June 2022 Two had tested positive for HIV and received antiretroviral therapy, and the other two were on antiretroviral pre-exposure prophylaxis (PreP) while testing negative for HIV. Bruce Y. Lee, Forbes, 16 June 2022 The Food and Drug Administration approved Apretude for use as what’s known as pre-exposure prophylaxis, or PrEP, against HIV on Dec. 20. NBC News, 15 Feb. 2022 And the use of pre-exposure prophylaxis, or PrEP, a once-daily pill that reduces the risk of catching the virus, is low among Blacks, even though awareness of the drug is relatively high. Leon Stafford, ajc, 26 Feb. 2022 PrEP, or pre-exposure prophylaxis, is typically taken in the form of a daily pill to prevent HIV/AIDS in people who are not diagnosed with the virus. NBC News, 25 Feb. 2022 Until recently, the only medications licensed and approved by the FDA for HIV prevention or pre-exposure prophylaxis, most commonly known as PrEP, were daily pills, which slow the progression of an HIV infection in the body. Tony Morrison, ABC News, 15 Feb. 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'pre-exposure prophylaxis.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of pre-exposure prophylaxis

2005, in the meaning defined above

Learn More About pre-exposure prophylaxis

Time Traveler for pre-exposure prophylaxis

Time Traveler

The first known use of pre-exposure prophylaxis was in 2005

See more words from the same year

Dictionary Entries Near pre-exposure prophylaxis


pre-exposure prophylaxis


See More Nearby Entries 

Statistics for pre-exposure prophylaxis

Last Updated

21 Jul 2022

Cite this Entry

“Pre-exposure prophylaxis.” Dictionary, Merriam-Webster, Accessed 7 Aug. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon


Test Your Vocabulary

Words Named After People

  • name tags
  • Namesake of the leotard, Jules Léotard had what profession?
Spell It

Can you spell these 10 commonly misspelled words?

Universal Daily Crossword

A daily challenge for crossword fanatics.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!