Adverse drug reaction

An adverse drug reaction (abbreviated ADR) is an expression that describes the unwanted, negative consequences associated with the use of given medications. An ADR is a particular type of adverse effect. The meaning of this expression differs from the meaning of "side effect", as this last expression might also imply that the effects can be beneficial. The study of ADRs is the concern of the field known as pharmacovigilance.
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Adverse drug reaction, n a detrimental outcome from a drug. Two types of ADRs exist: Type 1 results from dosage mismatch and Type 2 from rare [more]Adverse drug reaction - Community and Resources