| 
      
        | Heavy    metal | Chelating    agent |  
        | Aluminum | Deferoxaine    (Desferal) |  
        | Arsenic | Dimercaprol    (BAL), DMSA |  
        | Mercury |  
        | Lead |  
        | Cobalt | Calcium    EDTA,  DMSA, DTPA |  
        | EDTA :    Ethylenediaminetetraaceticacid DMSA:    Dimercaptosuccinicacid
 DTPA: Diethylenetriaminepentaaceticacid
 BAL:    British anti-Lewisite
 |  |