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Results 1 - 1 of 1 for Pyrethrum Extract OR Piperonyl Butoxide
  1. Lice, Scabies and Pregnancy (Organization of Teratology Information Specialists) - PDF  
    ... either permethrin (brand name Nix®) or pyrethrin and piperonyl butoxide (brand name Rid®). There are several different brands available at the drugstore. Permethrin, pyrethrin and piperonyl butoxide are insecticides that do not pass through the ...