Medications used to prevent heartworm infections are called preventives. Preventives kill the heartworm larvae before they have a chance to grow and mature into |
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adult heartworms. A number of heartworm preventives are available to pet owners today. Some heartworm preventives contain additional ingredients that will control other parasites, such as roundworms or hookworms. A monthly preventive should be given to all pets. Remember that mosquitoes can get indoors, so even though your pet may not go outside, he is still susceptible.
| Product |
Minimum Age/Weight |
Dose Given |
Active Ingredient Against Heartworm |
Additional Ingredients |
Also Effective Against |
| Heartgard Plus for Dogs
|
6 wks |
Monthly; oral |
Ivermectin |
Pyrantel pamoate |
Roundworms and hookworms |
| Heartgard for Cats
|
6 wks |
Monthly; oral |
Ivermectin |
None |
Hookworms |
| Tri-Heart Plus for Dogs
|
6 wks |
Monthly; oral |
Ivermectin |
Pyrantel pamoate |
Roundworms and hookworms |
| Iverhart Max for Dogs
|
Dogs: 8 wks |
Monthly; oral |
Ivermectin |
Pyrantel
pamote,
Praziquantel |
Roundworms, hookworms, and tapeworms. |
|
Sentinel for Dogs
|
4 wks and
2 lbs |
Monthly; oral |
Milbemycin oxime |
Lufenuron |
Roundworms, whipworms, some hookworms, and flea eggs. |
|
Revolution for Dogs
|
6 wks |
Monthly; topical |
Selamectin |
None |
Fleas, flea eggs, ear mites, sarcoptes mange, and American Dog Ticks. |
|
Revolution for Cats
|
8 wks |
Monthly; topical |
Selamectin |
None |
Fleas, flea eggs, ear mites, one type of hookworm and one type of roundworm. |
|
Advantage Multi for Dogs
|
7 wks and 3 lbs |
Monthly; topical |
Moxidectin |
Imidacloprid |
Fleas, roundworms, hookworms, and whipworms. |
|
Advantage Multi for Cats
|
9 wks and 2 lbs |
Monthly; topical |
Moxidectin |
Imidacloprid |
Fleas, roundworms, hookworms, and ear mites. |
|
Trifexis
|
8 wks and 5 lbs |
Monthly; chewable |
Milbemycin oxime and Spinosad |
N/A |
Fleas, roundworms, hookworms, and whipworms. |
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Learn what every pet owner needs to know about heartworm prevention:
visit our Special Heartworm Disease Information Section!
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