Definition of Adverse event
Adverse event: In pharmacology, any unexpected or dangerous reaction to a drug or vaccine.
Source: MedTerms™ Medical Dictionaryhttp://www.medterms.com/script/main/art.asp?articlekey=2159
Last Editorial Review: 3/19/2012
Drug Medical Dictionary of Terms by Letter
Medical Dictionary Term:
Women's Health
Find out what women really need.






