Overview Frontline® Shield for Dogs is a convenient, long-lasting monthly topical for treatment of fleas, ticks and chewing lice, and repellency of mosquitoes and stable flies. Effectively controls existing infestations and prevents reinfestations of fleas, ticks and chewing lice.

  • For use only on dogs 9 weeks or older to kill fleas and ticks and prevent fleas from developing; to repel and reduce blood-feeding by ticks, mosquitoes and stable flies; to kill chewing lice and to aid in control of Sarcoptes mites
  • Apply the entire contents of the applicator at each treatment
  • Starts killing ticks in 1 hour, starting 2 days after treatment
  • Repels and kills ticks for an entire month, including Deer ticks, Brown Dog ticks, American Dog ticks, and Lone Star ticks
  • Kills ticks that may transmit Lyme disease, Rocky Mountain spotted fever, Anaplasmosis, Babesiosis, canine Ehrlichiosis or cause tick paralysis
  • Starts killing fleas 5 minutes, starting 2 days after treatment
  • Kills fleas, flea eggs and flea larvae for an entire month
  • Prevents development of flea eggs and flea larvae, effectively breaking the flea life-cycle
  • Kills fleas that may cause flea allergy dermatitis and that may transmit bartonellosis, tularemia and tapeworm
  • Repels mosquitoes that may transmit heartworm disease and West Nile
  • Repels and reduces blood-feeding stable flies and mosquitoes for a month
  • Kills chewing lice
  • Aids in control of Sarcoptes mite infestations that may cause sarcoptic mange