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This broad-spectrum formula is most effective against flea infestations, but also addresses heartworm in cats and ferrets.
Addresses heartworms, fleas, and ticks with 1 treatment. Only requires 1 monthly application. Broad-spectrum approach. Also effective against ear mites. Minimal side effects reported.
Expensive price point. More effective on fleas than ticks. Results vary from cat to cat.
Some heartworm medications can be too strong for kittens, but this formula is ideal for younger cats and dogs.
Safe to use on both puppies and kittens. Can be used in combination with other flea, tick, or parasite treatments. Minimal side effects reported. Monthly treatment regimen. Topical formula is easy to apply.
Fleas can return after several weeks, especially in areas with high infestations.
This powerful topical solution covers a number of parasite-related issues, including mosquitoes, mites, and worms.
Also addresses ear mites and heartworm. Kills both adult fleas and eggs within hours of application. Effective for 30 days. Non-greasy formula, dries quickly. Works well with both outdoor and indoor cats.
Can require months of treatment to reach maximum effectiveness. Expensive and prescription-only.
This heartworm preventative targets parasites specifically, not fleas or ticks.
Chewable tablet easier to administer. Broad-spectrum treatment of parasites including tapeworm, heartworm and hookworm. Monthly treatment regimen. Less likely to trigger allergic reaction.
Soft packaging can damage pills during shipment.
This powerful formula kills heartworms and hookworms before they reach the dangerous adult stage.
Destroys heartworms at immature tissue stage. Also effective against hookworms at all life cycles. Chewable pills easier to administer. Medication is beef-flavored, appealing to cats.
Can be challenging to administer to cats that are hard to pill by nature.
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Heartworm is a very dangerous medical condition caused by parasitic worms that enter the cat's bloodstream through infected foods, fleas, or ticks. The best treatment for heartworm is prevention, and this is what prescription-grade heartworm treatments provide. Heartworm medications are often combined with flea and tick medications for a more comprehensive treatment plan, but they can also be sold as a separate product. It is important that cat owners remain vigilant when administering heartworm medication, and to look for any signs of a possible heartworm infestation in the cat's feces. An actual case of heartworm often requires more aggressive treatment from a veterinarian.
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