Pediculicide Poisoning Management

Clinical Manifestations

Malathion is a cholinesterase inhibitor with a theoretical risk of respiratory depression if accidentally ingested, according to the American Academy of Pediatrics 1
Symptoms of malathion poisoning include respiratory depression, cholinergic symptoms, and neurological symptoms, as reported by the American Academy of Pediatrics 2
Permethrin generally has extremely low mammalian toxicity, with manifestations typically including pruritus and edema, as noted by the American Academy of Pediatrics 4
Lindane has the highest toxicity profile among common pediculicides, with central nervous system toxicity being the primary concern, according to the American Academy of Pediatrics 3
Lindane poisoning manifestations include seizures, neurotoxic effects, and increased risk in individuals weighing less than 50 kg, as reported by the American Academy of Pediatrics 3

Discontinue exposure immediately and rinse from hair over a sink rather than in shower/bath to limit skin exposure, as recommended by the American Academy of Pediatrics 3
For ingestion, seek immediate medical attention and monitor for respiratory depression, particularly with malathion, according to the American Academy of Pediatrics 4
Malathion poisoning management includes monitoring respiratory function closely and considering cholinesterase reactivators in severe cases, as noted by the American Academy of Pediatrics 4
Lindane poisoning management includes seizure precautions and management, and supportive care, as recommended by the American Academy of Pediatrics 3
The American Academy of Pediatrics no longer recommends lindane due to safety concerns 3

Never initiate treatment unless there is a clear diagnosis of head lice, and follow proper application instructions, as recommended by the American Academy of Pediatrics 1
Supervise children during treatment to prevent accidental ingestion, according to the American Academy of Pediatrics 1
Children under 24 months should not use malathion, and children weighing less than 50 kg should avoid lindane, as noted by the American Academy of Pediatrics [1] [3]

High-risk populations, such as children under 24 months and patients with seizure disorders, should avoid certain pediculicides, as recommended by the American Academy of Pediatrics [1] [3]
Common pitfalls to avoid include misdiagnosis of infestation, improper application of pediculicides, and using flammable products near heat sources, according to the American Academy of Pediatrics [4] [1]