9 Best Cat Wormers 2025 in the United States

Chew + Heal's Dog and Cat Dewormer is a versatile liquid wormer designed to help expel roundworms from both cats and dogs. The active ingredient, piperazine citrate, works by paralyzing the worms, making it easier for your pet to expel them from their body. This product is particularly suitable for pets that are 6 weeks or older, including puppies and kittens. One of its major strengths is that it can be mixed with food or water, making it convenient for pet owners to administer the medication without much hassle.

The 12 oz bottle provides a good supply, especially useful for households with multiple pets or for ongoing treatments. It's also allergen-free, which is an added benefit for pets with sensitive systems. Additionally, the product is made in the USA, which may assure some users about its quality and safety standards.

However, it's important to note that this dewormer is specifically for roundworms, so it may not be effective against other types of worms. Also, while it is convenient to mix with food or water, some pets might detect the medication and refuse to eat or drink. Potential side effects should always be considered, and pet owners should monitor their pets after administering the wormer. In summary, Chew + Heal's wormer liquid is a reliable choice for those needing to address roundworm issues in both cats and dogs.

The Elanco Drontal Broad Spectrum Dewormer is a versatile option for tackling multiple types of parasitic worms, including tapeworms, roundworms, and hookworms. This makes it particularly useful for comprehensive parasite control in cats. It's suitable for cats and kittens over 1 month old and weighing more than 1.5 pounds, meaning it can be used for both young and adult cats, which adds to its versatility. The medication can be administered either directly by mouth or mixed with food, providing flexibility for pet owners depending on their cat's preferences and ease of administration.

The dosage is straightforward, with one tablet recommended for every 4-8 pounds of body weight. This ensures proper treatment by adjusting to the size of the cat. However, one potential concern is the higher frequency of administration that might be required for larger cats, which could be less convenient for some users. Additionally, as with any medication, there may be potential side effects, so it's essential to monitor your cat for any adverse reactions and consult a veterinarian if necessary. The product has received high ratings from customers, indicating general satisfaction with its effectiveness.

It is also compact in size, making it easy to store. The Elanco Drontal Broad Spectrum Dewormer appears to be a reliable and efficient choice for cat owners looking to maintain their pets’ health by preventing and treating worm infestations.

The Durvet WormEze Liquid Canine & Feline Antihelmintic is designed to control and remove large roundworms, which are common intestinal parasites in cats. This product is convenient to use as it can be added directly to your cat's water or food, making it easy to administer. It’s also safe for kittens as young as six weeks, so it’s suitable for cats of all ages.

Users have found it to be very palatable, which helps ensure your cat will consume it without too much fuss. The product is versatile, working for cats of all breed sizes, and comes in an 8-ounce bottle which should last for multiple treatments depending on your cat's needs. However, it’s important to note that it only targets large roundworms, so if your cat has other types of worms, this might not be the right solution.

There may be some side effects, though they are generally minimal, so it's always a good idea to monitor your cat after administering any medication. Many users have expressed satisfaction with its effectiveness and ease of use.