A Answers (1)
Stacy Wiegman, PharmD, Pharmacy, answeredPermethrin is a pyrethroid, which acts against pests such as lice, ticks, fleas, and mites. It attacks the nerve cell membrane in the pests. Essentially, it interrupts the sodium channel current to the nerves and consequently paralyzes the pests. This, in turn, causes death of lice, mites, and eggs.