10 Best Cat Dewormer For All Worms 2026 in the United States

NexGard Combo is a topical solution designed to protect cats weighing between 5.6 and 16.5 pounds from a variety of parasites, including tapeworms, hookworms, roundworms, fleas, ticks, and heartworm disease. Its active ingredients—esafoxolaner, eprinomectin, and praziquantel—work together to offer broad-spectrum protection, making it one of the few options that also specifically targets tapeworms, which many dewormers overlook. The treatment is easy to use with a monthly application, which helps ensure consistent protection without complicated dosing schedules.

This product is especially suitable for indoor cats that may still be exposed to parasites through fleas or ticks brought inside, as well as for cats at risk of heartworm disease. It is important to apply it every 30 days throughout the year and continue for at least three months after mosquitoes are no longer present to effectively prevent heartworm. NexGard Combo provides a convenient and comprehensive solution for parasite protection, appealing to cat owners looking for an all-in-one monthly topical treatment.

The Chew + Heal's wormer liquid is designed for both puppies and kittens, effectively targeting roundworms. With piperazine citrate as its active ingredient, it works by paralyzing and expelling these parasites, making it a solid option for pet owners dealing with worm issues. The flexibility of mixing the liquid into food or water is a plus, especially for finicky eaters. This dewormer is suitable for pets aged six weeks and older, covering a broad range of dog and cat breeds, which is convenient for multi-pet households.

The 12 oz bottle size provides a reasonable amount for multiple treatments, and the product is allergen-free, making it safe for pets with sensitivities. While this product excels at targeting roundworms, it doesn't specify effectiveness against other types of worms, which could be a limitation for pet owners needing broader coverage. The dosage and administration instructions should be followed carefully to ensure safety, particularly for younger or less healthy pets.

The PetArmor 7 Way De-Wormer is a chewable oral treatment designed specifically for small dogs and puppies, targeting 7 types of worms including tapeworms, roundworms, and hookworms. It contains the active ingredients praziquantel and pyrantel pamoate, which are effective against these parasites in dogs. The chewable form makes it easy to administer, and it is safe for dogs as young as 12 weeks and weighing between 6 to 25 pounds. Dosage is straightforward, with 1 or 2 tablets depending on the dog’s weight.

This product is not formulated for cats. Cats often require different active ingredients or formulations, so using this dog product on cats is not recommended without veterinary advice. The dosage instructions and safety information are specific to dogs, so cat owners should choose a dewormer labeled specifically for feline use to ensure safety and effectiveness.

PetArmor 7 Way De-Wormer works well as a broad-spectrum dewormer for small dogs and puppies, but it does not meet the key needs for a cat dewormer. Cat owners should look for products designed specifically for cats, with appropriate active ingredients and dosing instructions to safely cover all types of worms.