Medications, Pharmacology: What is the difference between an adverse reaction and an adverse effect?
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3 min read
In 2022, the U.S. Food and Drug Administration's Adverse Event Reporting System (FAERS) received over 1.25 million reports of serious adverse events. Despite these statistics, the precise terminology can be confusing, highlighting the need to understand what is the difference between an adverse reaction and an adverse effect?. The distinction is critical for patient safety, proper drug reporting, and the field of pharmacovigilance.