Head lice affect more than 100 million ... 2 years of age with head louse infestation against which treatment with either pyrethrin or malathion 2–6 weeks before enrollment had failed.

Kills head lice by asphyxiation; contains no neurotoxic pesticide. Malathion 5% lotion (Ovide ... data on the effectiveness or safety of these treatments. Notes: OTC = over-the-counter; Rx ...

Head lice infestation, known scientifically ... When resistance is suspected, alternative treatments such as malathion, benzyl alcohol, and dimethicone may be considered[4]. Additionally, wet ...

Treatment and prevention of body lice (singular is "louse") involve improving ... can prescribe a bodywash or skin cream that contains malathion, permethrin, or benzyl alcohol.

Over time, lice have genetically evolved to survive conventional treatments such as malathion or pyrethrin derivatives. In fact, products containing these insecticides have been off the market in ...