Medical Definition of Adverse effect
Adverse effect: A harmful or abnormal result. An adverse effect may be caused by administration of a medication or by exposure to a chemical and be indicated by an untoward result such as by illness or death.Source: MedTerms™ Medical Dictionary
Last Editorial Review: 5/13/2016
Drug Medical Dictionary of Terms by Letter
Medical Dictionary Term:
Top RxList Drug News
Find out what women really need.