Sentry Fiproguard Plus Topical Treatment for Dogs provides premium protection for your pet the same veterinarian-recommended, fast-acting active ingredients as Frontline Plus but at a lower price. Because it contains an IGR (insect growth regulator), it also kills flea eggs, flea larvae and prevents the development of flea pupae. This means it helps prevents reinfestation, keeping your pet, your home and your family safe and sound. Using the same active ingredients as Frontline Plus, FIPROGUARD PLUS topical treatment provides fast, effective, long-lasting protection for your dog. Controls mites that may cause sarcoptic mange.