As part of an overall program, it allows true confidence that work around lead can be done safely. Chelate is a Latin word for claw and these drugs work by latching on to lead in the body. The problem is that chelating agents also latch on to other mineral nutrients, such as copper, calcium, manganese, iron, and zinc, causing the body to become run down. Because of this potential problem, chelating agents must only be given under the strict supervision of a doctor. This is not an accepted medical practice and it is forbidden by the OSHA standard.
Chelation is an important tool for ridding the body of excess lead.
It does not protect or cure lead-inflicted damage to tissues. It does limit the lead available to cause such damage. Exposed workers should consult with an occupational physician about the suitability of such treatment. Keep in mind that chelation is a last resort. Chelation can be a very painful process.