Once-a-month topical flea and lice prevention and treatment for use on dogs 7 weeks and older. Active ingredients: imidacloprid 9.10%, pyriproxyfen 0.46%. • Kills fleas within 12 hours of application • Kills all flea life stages • Controls existing flea infestations on the dog and prevents further infestations • Treats, prevents and controls lice infestations • Fragrance-free