Poisoning by Organic Phosphorus Pesticides Potentiated by Phenothiazine Derivatives
Thomas B. Gaines 1
1 Toxicology Section, Communicable Disease Center, U. S. Public Health Service, Atlanta 22, Georgia
Repeated administration of the phenothiazine derivatives chlorpromazine and promazine increased the toxicity of a single dose of parathion in male rats. In female rats, a single dose of 5 mg/kg of promazine increased the toxicity of a single dose of parathion, but had no apparent effect on the toxicity of a single dose of Phosdrin. Repeated dosage with chlorpromazine and atropine, or promazine and atropine, after administration of parathion at the same rate, resulted in a slightly higher mortality in female rats than did atropine or no treatment.