Meso-2,3-dimercaptosuccinic acid (DMSA) is a sulfhydryl-containing, water-soluble, non-toxic, orally administered, metal chelator which has been in use as an antidote to heavy metal toxicity since the 1950s. It is also known as succimer and sold as a prescription under the trade name Chemet. DMPS chelation is most commonly used to remove lead in both adults and children, although it …