© 1986 Oxford University Press
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Incapacitation and Treatment of Rats Exposed to a Lethal Dose of Sulfuryl Fluoride1
Mammalian and Environmental Toxicology Research Laboratory, Health and Environmental Sciences, The Dow Chemical Company Midland, Michigan 48674
Incapacitation and Treatment of Rats Exposed to a Lethal Dose of Sulfuryl Fluoride. NIT-SCHKE, K., D., ALBEE, R.R., MATTSSON, J.L., AND MILLER, R.R. (1986). Fundam. Appl. Toxicol. 7, 664–670. Rats exposed to 4000 ppm sulfuryl fluoride (VIKANE* gas fumigant, SO2F4) were incapacitated within 45 min and died within several hours after exposure. Exposure to higher concentrations resulted in a shorter time to incapacitation and death occurred within minutes. Treatment with calcium gluconate before exposure to 4000 ppm SO2F2 for 45 min resulted in 80%survival. However, calcium gluconate did not alleviate SO2F4-induced convulsions. Administration of phenobarbital before or after exposure to 4000 ppm SO2F4 for 45 min effectively reduced the frequency and severity of convulsions and resulted in survival of all animals. Exposure of rats to 10,000 ppm SO2F4 for 15 min followed by treatment with phenobarbital reduced the frequency of convulsions and delayed death, but did not prevent death. Diazepam was less effective than phenobarbital while diphenylhydantoin had no beneficial effect and, in fact, made the convulsions more severe and longer in duration. The results of this study indicate that phenobarbital was effective in ameliorating the acute toxic effects of an overexposure to SO2F4 in rats.