Head lice affect more than 100 million people worldwide annually. Permethrin (1% formulation) is efficacious but resistance is emerging. Malathion (0.5% formulation) is an alternative, but ...

It contains the active ingredients imidacloprid, permethrin, and pyriproxyfen. Imidacloprid is classified as a neonicotinoid insecticide that controls fleas and lice. Permethrin is classified as ...

(Higher concentrations of permethrin are used in medications for treating both head lice and scabies.) Spray only your clothing. We said it before, but it’s worth repeating: Permethrin spray is ...

Some medical practitioners recommend pesticide treatments containing permethrin, pyrethrin, or malathion. These therapies have been the first line of treatment for head lice since World War II.

Permethrin is classified as a synthetic neurotoxic pyrethroid that has activity against fleas, ticks, lice, and some mites. It also repels flies, gnats, and mosquitoes. Deltamethrin is ...

With each round of research, Yoon and his team noted that lice are getting more and more resistant to permethrin. In their latest study, published last year in the Journal of Medical Entomology ...