Hi, keep this in mind if you decide to use the chemical:

Extended use of DMSA can cause mild to moderate neutropenia with increased SGOT, SGPT, Platelet count, Cholesterol, Alkaline Phosphatase and Blood Urea Nitrogen (BUN). Adverse reactions to DMSA include ataxia, convulsions, rash, nausea, diarrhea, anorexia, headache, dizziness, sensorimotor neuropathy, decreased urination, arrhythmia, infection. Zinc excretion doubles during the administration of DMSA. Patients must be kept hydrated as renal function can be compromised.