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permethrin/per·meth·rin/ (per-meth´rin) a topical insecticide used in the treatment of infestations by Pediculus humanus capitis, Sarcoptes scabiei, or any of various ticks; also applied to objects such as furniture and bedding.
A synthetic pyrethroid, C21H20Cl2O3, used as an agricultural, industrial, and residential insecticide, to treat scabies and head lice in humans, and to control fleas and ticks in dogs.
a topical pediculicide and scabicide.
indications It is used for the treatment of head lice and their nits, for the treatment of scabies, and as prophylaxis when there are epidemics of lice.
contraindications Allergies to pyrethrin, pyrethroids, or chrysanthemum flowers prohibit its use.
adverse effects Among reported adverse effects are itching, mild burning or stinging, numbness, discomfort, mild erythema, and scalp rash.
permethrinActicin® Infectious disease A topical insecticide used for scabies and head lice. See Head lice, Scabies.
permethrinA drug used externally in a hair rinse to get rid of head lice. The drug is on the WHO official list. A brand name is Lyclear.
A medication used to rid the scalp of head lice. Permethrin works by paralyzing the lice, so that they cannot feed after hatching within the 24 hours required for survival.
Mentioned in: Lice Infestation
a third-generation synthetic pyrethroid widely used in the control of ectoparasites. It is very stable and lasts for several weeks.