Treating your dog with HEARTGARD® Plus (ivermectin/pyrantel) as directed can eliminate pre-existing populations of roundworms (Toxocara canis, Toxascaris leonina) and hookworms (Ancylostoma caninum, Uncinaria stenocephala, Ancylostoma braziliense) and reduce the incidence of re-infection by these parasites.
HEARTGARD Plus is approved for use in puppies as young as 6 weeks of age. Monthly administration can reduce the risk of re-infection by reducing the burden of roundworm eggs and hookworm larvae in your dog's environment.