Definition of PEP

Reviewed on 6/3/2021

PEP: The abbreviation PEP stands for a number of things in medicine including post-exposure prophylaxis. Prophylaxis means a defense or protection.

Post-exposure prophylaxis, for example, might concern the treatment of a health care worker exposed by a needle stick to HIV with a drug such as AZT to protect them from being infected with HIV.


Heart Disease: Causes of a Heart Attack See Slideshow

Health Solutions From Our Sponsors