Use of orally administered succimer (meso-2,3-dimercaptosuccinic acid) for treatment of lead poisoning in dogs. 1996

D T Ramsey, and S W Casteel, and A M Faggella, and C B Chastain, and J W Nunn, and D J Schaeffer
Department of Veterinary Medicine and Surgery, College of Veterinary Medicine, University of Missouri, Columbia 65211, USA.

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. METHODS Prospective case series. METHODS 13 dogs with moderate-to-high blood lead concentrations (39 to 120 micrograms/dl) and clinical signs of lead poisoning. METHODS 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 micrograms/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 micrograms/dl, respectively. CONCLUSIONS 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.

UI MeSH Term Description Entries
D007854 Lead A soft, grayish metal with poisonous salts; atomic number 82, atomic weight 207.2, symbol Pb.
D007855 Lead Poisoning Poisoning that results from chronic or acute ingestion, injection, inhalation, or skin absorption of LEAD or lead compounds. Poisoning, Lead,Lead Poisonings,Poisonings, Lead
D008297 Male Males
D011446 Prospective Studies Observation of a population for a sufficient number of persons over a sufficient number of years to generate incidence or mortality rates subsequent to the selection of the study group. Prospective Study,Studies, Prospective,Study, Prospective
D002614 Chelating Agents Chemicals that bind to and remove ions from solutions. Many chelating agents function through the formation of COORDINATION COMPLEXES with METALS. Chelating Agent,Chelator,Complexons,Metal Antagonists,Chelators,Metal Chelating Agents,Agent, Chelating,Agents, Chelating,Agents, Metal Chelating,Antagonists, Metal,Chelating Agents, Metal
D004113 Succimer A mercaptodicarboxylic acid used as an antidote to heavy metal poisoning because it forms strong chelates with them. DMSA,Dimercaptosuccinic Acid,2,3-Dimercaptosuccinic Acid,Butanedioic Acid, 2,3-Dimercapto-, (R*,S*)-Isomer,Chemet,Ro-1-7977,Succicaptal,Succimer Antimony Sodium Salt, (R*,S*)-Isomer,Succimer, (R*,R*)-(+,-)-Isomer,Succimer, Dipotassium Salt,Succimer, Disodium Salt,Succimer, Monosodium Salt,Succimer, Rhenium Salt,Succimer, Tin Salt,Tin Dimercaptosuccinate,meso-Dimercaptosuccinic Acid,2,3 Dimercaptosuccinic Acid,Acid, 2,3-Dimercaptosuccinic,Acid, Dimercaptosuccinic,Acid, meso-Dimercaptosuccinic,Dimercaptosuccinate, Tin,Dipotassium Salt Succimer,Disodium Salt Succimer,Monosodium Salt Succimer,Rhenium Salt Succimer,Ro 1 7977,Ro17977,Tin Salt Succimer,meso Dimercaptosuccinic Acid
D004283 Dog Diseases Diseases of the domestic dog (Canis familiaris). This term does not include diseases of wild dogs, WOLVES; FOXES; and other Canidae for which the heading CARNIVORA is used. Canine Diseases,Canine Disease,Disease, Canine,Disease, Dog,Diseases, Canine,Diseases, Dog,Dog Disease
D004285 Dogs The domestic dog, Canis familiaris, comprising about 400 breeds, of the carnivore family CANIDAE. They are worldwide in distribution and live in association with people. (Walker's Mammals of the World, 5th ed, p1065) Canis familiaris,Dog
D005260 Female Females
D000284 Administration, Oral The giving of drugs, chemicals, or other substances by mouth. Drug Administration, Oral,Administration, Oral Drug,Oral Administration,Oral Drug Administration,Administrations, Oral,Administrations, Oral Drug,Drug Administrations, Oral,Oral Administrations,Oral Drug Administrations

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