What is defined as an adverse drug reaction?

An adverse drug reaction is defined as a harmful or unintended response to a medication. This definition encapsulates the nature of adverse reactions, emphasizing that they are not only negative but also unexpected given the standard use of the medication. These reactions can vary significantly in severity and can occur after the first dose or after multiple dosages, highlighting the importance of monitoring patients closely for any adverse effects once they are on a particular medication regimen. Understanding this definition is crucial for medication aides, as it aids in recognizing and reporting any potential issues that may arise during medication administration. In the context of safe medication practices, recognizing an adverse drug reaction is vital for preventing potential complications or harm to patients.