{"term":{"id":"13251","title":"idiosyncratic drug reaction","longtitle":"IUPAC Gold Book - idiosyncratic drug reaction","doi":"10.1351\/goldbook.13251","code":"13251","status":"current","initialism":"<em>initialism<\/em>: IDR","definitions":[{"id":1,"text":"Rare and unpredictable adverse drug reaction occurring only in susceptible individuals.","notes":{"1":"A dose–response relationship may not be apparent within the dose range used clinically."},"links":[{"term":"adverse drug reaction","url":"https:\/\/goldbook.iupac.org\/terms\/view\/12851"}],"sources":["PAC, 2012, 84, 1113. 'IUPAC glossary of terms used in immunotoxicology (IUPAC Recommendations 2012)' on page 1181 (https:\/\/doi.org\/10.1351\/PAC-REC-11-06-03)"]}],"altoutputs":{"html":"https:\/\/goldbook.iupac.org\/terms\/view\/13251\/html","xml":"https:\/\/goldbook.iupac.org\/terms\/view\/13251\/xml","plain":"https:\/\/goldbook.iupac.org\/terms\/view\/13251\/plain"},"citation":"Citation: 'idiosyncratic drug reaction' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351\/goldbook.13251","license":"The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https:\/\/creativecommons.org\/licenses\/by-sa\/4.0\/) for individual terms.","collection":"If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org .","disclaimer":"The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using.","accessed":"2026-06-28T18:42:08+00:00"}}