Chelation therapy uses special medication to remove heavy metals from the body. The medications, called agents, bind to the heavy metals in the blood. Once they bind they can leave the body in urine or stool. Examples of heavy metals include:
Reasons for Procedure
Chelation therapy is used as a treatment for metal toxicity. Once metals are taken into the body they can collect in the body tissue and be difficult to pass out of the body. The excess metals in organs can cause damage and limit function. Metals can be most harmful to organs like the brain, kidney, and liver.
Heavy metals can build up in the body quickly or over a long period of time. It may be caused by:
Metals that enter through your mouth—Examples include iron pills, eating paint chips or dirt with lead.
Water—Some water may have high levels of lead, mercury, or arsenic. May be due to water supply or plumbing.
Food—Can occur with:
Pesticides used in farming or seafood
Mercury poisoning when eating some fish
Arsenic poisoning from food contaminated with pesticides
Air—Inhaling cigarettes, paint fumes, pesticide sprays, or gasoline fumes
Certain jobs, such as foundry, printing, mining, or petroleum work
Heavy metals can also build up from certain medical conditions such as:
The agent and method that is needed will depend on what metal is causing the problem. Some agents are taken by mouth. Other are given by injection or through an IV. You may need to be watched in a clinical setting after the treatment to make sure you do not have severe side effects.
How Long Will It Take?
The amount of time for treatment will depend on the type of metal poisoning, and type of treatment.
Chelation therapy by injection or IV may need frequent outpatient visits over a period of weeks or months. Some IV drugs will need to be given over a period of hours during each visit.
Will It Hurt?
If you need an injection or IV, there may be some discomfort when the needle is inserted.
At the Care Center
Right after the procedure, the staff will monitor you for side effects, such as a headache or rash.
Some dietary changes may be advised to help remove the metal from your body. It will also be important to avoid further exposure.
Call Your Doctor
Call your doctor if any of these occur:
Pain, burning, or other urinary problems
Persistent allergy symptoms, such as itching, hives, or rash
Yellowing of the skin or whites of the eyes—
Lightheadedness, with or without fainting
Persistent nausea or vomiting
If you think you have an emergency, call for emergency medical services right away.
Last reviewed March 2018 by
EBSCO Medical Review Board
James P. Cornell, MD
Last Last updated: 6/13/2017
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