Title: paralytic shellfish poisoning Long Title: IUPAC Gold Book - paralytic shellfish poisoning DOI: 10.1351/goldbook.11990 Status: current Definition Illness that is a consequence of consumption of bivalve molluscs such as mussels, oysters, and clams that have ingested large quantities of microalgae containing saxitoxin or its derivatives. Note Initially there is tingling, numbness, and burning of the tongue and lips, which spreads to the face, neck, arms, fingertips, legs, and toes; this is followed by weakness of the upper and lower limbs, loss of motor coordination, and, in severe cases, paralysis. Related Term - paralysis: https://goldbook.iupac.org/terms/view/11989 Source - PAC, 2015, 87, 841. 'IUPAC Glossary of terms used in neurotoxicology (IUPAC Recommendations 2015)' on page 894 (https://doi.org/10.1515/pac-2015-0103) Other Outputs - html: https://goldbook.iupac.org/terms/view/11990/html - json: https://goldbook.iupac.org/terms/view/11990/json - xml: https://goldbook.iupac.org/terms/view/11990/xml Citation: Citation: 'paralytic shellfish poisoning' 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.11990 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: 2026-06-28T17:45:54+00:00