Font Size

Definition of Post-exposure prophylaxis

Post-exposure prophylaxis: A treatment administered following exposure to a harmful agent which attempts to block or reduce injury or infection. Prophylaxis means a defense or protection.

Post-exposure prophylaxis (PEP), 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.

Source: MedTerms™ Medical Dictionary
Last Editorial Review: 6/14/2012

Medical Dictionary Definitions A - Z

Search Medical Dictionary

Medical Dictionary