It is unclear if use during pregnancy is safe for the baby. Chronic use of<unk>  may increase the risk of hearing loss in patients with thalassemia major. Chronic use of<unk>  may cause ocular symptoms, growth retardation, local reactions and allergy.
Deferoxamine
Dimercaprol
Mercapturic acid
Sodium thiosulfate 
Disufenton sodium
Dimercaptosuccinic acid
Alphos
Fomepizole