Medical Definition of PEP
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.Source: MedTerms™ Medical Dictionary
Last Editorial Review: 1/25/2017
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