Drug class

Antidote - GI Insoluble Metal Chelators

The phrase "Antidote - GI Insoluble Metal Chelators" functions as a specialized compendial or administrative classification rather than a formal standalone FDA pharmacological class. Read more about Antidote - GI Insoluble Metal Chelators

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About Antidote - GI Insoluble Metal Chelators.

The phrase "Antidote - GI Insoluble Metal Chelators" functions as a specialized compendial or administrative classification rather than a formal standalone FDA pharmacological class.

It refers to orally administered, non-absorbable chelating agents—most notably insoluble Prussian blue (ferric hexacyanoferrate)—that remain localized within the gastrointestinal lumen.

These agents work via ion exchange, adsorption, and mechanical trapping to bind target univalent metal ions ingested or excreted into bile, interrupting enterohepatic recirculation and promoting fecal elimination.

Clinically, they serve as critical countermeasures to treat known or suspected internal contamination from radioactive cesium isotopes and radioactive or non-radioactive thallium poisoning.