Send to

Choose Destination
See comment in PubMed Commons below
Am J Health Syst Pharm. 2007 Jan 1;64(1):45-53.

Lead toxicity and chelation therapy.

Author information

North Texas Poison Center, Dallas, Texas 75235, USA.



Common sources of lead exposure, the primary clinical effects of lead toxicity, and current recommendations for managing lead toxicity, including chelation therapy, are reviewed.


Common sources of lead exposure in children and adults include industrial and mining activities, paint, dust, soil, water, air, the workplace, food, trinkets, ethnic folk remedies, and cosmetics. The absorption and biological fate of lead are affected by a variety of factors, including an individual's nutritional status, health, and age. Children with a blood lead concentration of >10 microg/dL and adults with a blood lead concentration of > or = 45 mug/dL should undergo further evaluation. Symptoms and time to onset of symptoms postexposure may vary, and it can be difficult to identify the early, subtle neurologic effects of lead toxicity. The classic symptoms of lead toxicity generally correlate with blood lead concentrations of 25-50 microg/dL in children and 40-60 microg/dL in adults. Management of lead toxicity requires extensive risk assessment and caregiver education. Chelation is generally not indicated for adults with blood lead concentrations of < 45 microg/dL because of the potential risk of adverse drug events and concerns about remobilized lead, and chelation for children with blood lead concentrations of < 45 microg/dL remains controversial. Dimercaprol, edetate calcium disodium, and succimer are the three agents primarily used for chelation.


Lead toxicity remains a significant public health concern. Elimination of elevated blood lead levels in children can be accomplished by educating appropriate health care providers and caregivers, recognizing potential lead sources, and adopting aggressive prevention and case management measures.

Comment in

[Indexed for MEDLINE]
PubMed Commons home

PubMed Commons

How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for HighWire
    Loading ...
    Support Center