
Heartgard Plus for Large Dogs is an oral monthly heartworm preventive for dogs at least 6 weeks of age, weighing between 51 - 100 lbs. These easy-to-administer, beef-flavored chewables contain Ivermectin and Pyrantel Pamoate and effectively eliminate the tissue stage of heartworm larvae, preventing heartworm disease. Heartgard Plus Brown is also effective in the treatment and control of roundworms and hookworms.
Heartgard Plus Blue is formulated with Ivermectin (272 Mcg) and Pyrantel Pamoate (227 Mg). This powerful combination prevents heartworm disease by eliminating the tissue stage of heartworm larvae and effectively treats and controls roundworms and hookworms.
| Dog weight | Tablets Per Month | Ivermectin Content | Pack Color |
| Up to 25 lbs | 1 | 68 mcg | Blue |
| 26 – 50 lbs | 1 | 136 mcg | Green |
| 51 – 100 lbs | 1 | 272 mcg | Red |
Ivermectin and Pyrantel Pamoate
Rated 4.7/5 based on 240 ratings
Heartgard Plus has been part of our routine for years and continues to perform consistently.
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Heartgard Plus has been consistent and dependable for heartworm prevention with no side effects noticed.
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My vet suggested this years ago, and I’ve stuck with it because it works.
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This is an amazing heartworm preventive.
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A must-buy treatment to keep pets protected from fleas and ticks.
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