Title: multidrug resistance Long Title: IUPAC Gold Book - multidrug resistance DOI: 10.1351/goldbook.12685 Status: current Definition Characteristic of cells that confers resistance to the effects of several different classes of drugs. Note There are several forms of drug resistance. Each is determined by genes that govern how cells will respond to chemical agents. One type of multidrug resistance involves the ability to eject several drugs out of cells (e.g., efflux pumps such as P-glycoprotein). Related Terms - P-glycoprotein: https://goldbook.iupac.org//terms/view/12704 - efflux pumps: https://goldbook.iupac.org//terms/view/12653 Source - PAC, 2013, 85, 1725. 'Glossary of terms used in medicinal chemistry. Part II (IUPAC Recommendations 2013)' on page 1742 (https://doi.org/10.1351/PAC-REC-12-11-23) Other Outputs - html: https://goldbook.iupac.org/terms/view/12685/html - json: https://goldbook.iupac.org/terms/view/12685/json - xml: https://goldbook.iupac.org/terms/view/12685/xml Citation: Citation: 'multidrug resistance' 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.12685 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: 2026-05-30T17:41:36+00:00