Natroba (spinosad) is an anti-parasite medication used for the topical treatment of head lice infestations in patients of six months of age and older. This medication is for external use only, and the patient must also treat their environment to achieve a complete treatment and to prevent reinfection. It is recommended that you wash your clothing, hats, bedding and towels in hot water and dry in high heat. In addition, you should dry-clean any non-washable clothing and soak all hair brushes, combs, and hair accessories in hot water for at least 10 minutes. During medication, you should avoid intimate contact and sharing hair-related personal items to avoid infecting others.