Heartgard Plus Chews for Dogs 0–25 lbs help prevent heartworm disease by eliminating heartworm larvae (Dirofilaria immitis) for 30 days after infection. Also treats and controls roundworms (Toxocara canis, Toxascaris leonina) and hookworms (Ancylostoma caninum, Uncinaria ...Heartgard Plus Chews for Dogs 0–25 lbs help prevent heartworm disease by eliminating heartworm larvae (Dirofilaria immitis) for 30 days after infection. Also treats and controls roundworms (Toxocara canis, Toxascaris leonina) and hookworms (Ancylostoma caninum, Uncinaria stenocephala, Ancylostoma braziliense).
Recommended for dogs 6 weeks of age and older. This 6-month supply offers easy, beef-flavored monthly dosing during mosquito season. Give the first dose within 30 days of exposure to mosquitoes and continue monthly until 30 days after the season ends.
Prescription required from your veterinarian.