Main content Pyrethrins and Piperonyl Butoxide for Lice

    Pyrethrins and Piperonyl Butoxide for Lice



    How Well It Works

    Pyrethrin products are useful against lice, but treatment failures are getting more and more common. Some countries have reported an increase in resistance to pyrethrin. If this occurs, your doctor can suggest other treatments (such as malathion or permethrin).



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