Calcium edta (edetate calcium disodium)

In veterinary and human medicine calcium ethylenediaminetetraacetate (CaEDTA) is used as a heavy metal chelator, usually to treat for lead and zinc toxicities (Fig. 1). Ethylenediaminetetraacetate is a water soluble hexadentate ligand which complexes with transition metals and excreted unchanged in urine.1 Examples of biological transition metals include magnesium, calcium, manganese, iron, cobalt, zinc, and lead. When multiple metals are available for chelation, such as in a biological environment, EDTA will complex with the metal that has the highest stability constant (K, Table 1).
Source: Journal of Exotic Pet Medicine - Category: Veterinary Research Authors: Source Type: research