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Updated: Sep 11, 2026

Protocols for Testing the Toxicity of Novel Insecticidal Chemistries to Mosquitoes
Published on: February 13, 2019
[Acute organophosphate intoxication after using a anti-lice insecticide shampoo]
C Paget1, S Menard, I Wroblewski
1Département de pédiatrie, centre hospitalier universitaire de Grenoble, BP 217, 38043 Grenoble, France. bpcorinne@wanadoo.fr
Case Report:
Two children were admitted for poisoning by organophosphate pesticides applied as hair rinses against lice. These chemical agents inhibit the acetylcholinesterase enzyme at various sites. The resultant accumulation of the transmitter acetylcholine causes abnormal signs and symptoms. The diagnosis is based on a reduction in the blood cholinesterase activity. The specific treatment comprises the administration of atropine and pralidoxime.
Conclusion:
Accidental poisoning by organophosphate insecticides may occur, due to the misuse of such substances as shampoo against lice. An accurate information for users is necessary.
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