Barrier for Dogs is indicated for the prevention of heartworm disease caused by Dirofilaria immitis and the treatment of Dirofilaria immitis circulating microfilariae in heartworm-positive dogs. Barrier for Dogs kills adult fleas and is indicated for the treatment of flea infestations (Cteno-cephalides felis). Barrier for Dogs is indicated for the treatment and control of sarcoptic mange caused by Sarcoptes scabiei var.canis. Barrier for Dogs is also indicated for the treatment and control of the following intestinal par-asites species: Hookworms (Ancylostoma caninum) (Uncinaria stenoceph-ala), Roundworms (Toxocara canis) (Toxascaris leonina) and Whipworms (Trichuris vulpis). See package insert for complete product details.