International Atomic Energy Agency no relation medication
Medicine
Prussian blue's ability to incorporate monovalent metallic cations (Me+) makes it useful as a sequestering agent for certain toxic heavy metals. Pharmaceutical-grade Prussian blue in particular is used for people who have ingested thallium (Tl+) or radioactive caesium (134Cs+, 137Cs+) . According to the International Atomic Energy Agency (IAEA), an adult male can eat at least 10 g of Prussian blue per day without serious harm. The U.S. Food and Drug Administration (FDA) has determined the "500-mg Prussian blue capsules, when manufactured under the conditions of an approved New Drug Application, can be found safe and effective therapy" in certain poisoning cases. Radiogardase (Prussian blue in soluble capsules ) is a commercial product for the removal of caesium-137 from the intestine, so indirectly from the bloodstream by intervening in the enterohepatic circulation of caesium-137, reducing the internal residency time (and exposure) by about two-thirds. In particular, it was used to adsorb and to remove 137Cs+ from the organism of those poisoned in the Goiânia accident in Brazil.
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