Pyrethrum Extract and Piperonyl Butoxide

Pyrethrum extract and piperonyl butoxide are pediculicides available in over-the-counter (OTC) medicines that kill head lice, body lice, pubic lice (crabs), and their eggs (nits). The two ingredients come together in medicines that kill lice and nits. The combination of pyrethrum extract and piperonyl butoxide is approved by the U.S. Food and Drug Administration (FDA) […]

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