<unk>  is a chelating agent that is FDA approved for the treatment of Wilson's disease, cystinuria, severe, active rheumatoid arthritis. There is a Black Box Warning for this drug as shown here.  Common adverse reactions include Anorexia, epigastric<unk> in, nausea, vomiting, diarrhea, proteinuria and bone marrow supression.
Penicillamine
Sodium thiosulphate
Zinc pyrithione
Zinc gluconate
Edetate disodium
Indigotindisulfonate
Hydroxocobalamin
Cyanocobalamin