Abstract
Objective— To determine whether succimer (meso-2,3-dimercaptosuccinic acid) would be effective in reducing blood lead concentration in dogs with naturally acquired lead poisoning and whether treated dogs would develop clinically important adverse effects. Design— Prospective case series. Animals— 13 dogs with moderate-to-high blood lead concentrations (39 to 120 μg/dl) and clinical signs of lead poisoning. Procedure— Dogs were treated with succimer (10 mg/ kg of body weight, PO, q 8 h) for 10 days. Blood and urine samples were analyzed for lead concentration before, during, and after treatment with succimer. Results— Mean blood lead concentrations on days 0, 3, 7, and 20 were 70.6, 32.7, 16.8, and 27.6 μg/dl, respectively. Mean blood lead concentrations decreased 53.6, 76.2, and 60.9% from pretreatment value on days 3, 7, and 20, respectively. Mean urine lead concentrations on days 0, 3, 7, and 20 were 70.0, 485.4, 254.3, and 28.3 μg/dl, respectively. Clinical Implications— In dogs with naturally acquired lead poisoning, succimer administered orally for 10 days effectively reduced blood lead concentrations and eliminated clinical signs of lead poisoning. (J Am Vet Med Assoc 1996;208:371-375)
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