February 25, 2020

The Best Cat Dewormers

Cat Dewormers

Worms are parasites that can infect your cat’s intestines. And if these intestinal parasites are left untreated, they can gravely affect your cat’s health and overall well-being.

There are multiple types of worms that can affect your cat’s health, and the most common types are roundworms, tapeworms, hookworms, and whipworms.

If infected, your cat can exhibit multiple symptoms including diarrhea, weight loss, dry hair, and vomiting. Your cat’s appearance can also weaken, and they may look unhappy or feel unwell. Anemia, a swollen belly, or coughing can also be symptoms.

It’s also important to note that your cat may not show any symptoms even if they’ve been infected because some worm eggs or larvae can lay dormant in your cat’s body.

Though some cat dewormers have to be prescribed, there are many that you can buy online. We’ve created this list of the five best cat dewormers to help you find the best product for your needs. A buying guide is included at the end to help answer some questions you may have.

Top 5: Cat Dewormers Review

Bayer Tapeworm Dewormer (Prazquantel Tablets) for Cats, 3 Tablets

This product is designed to combat tapeworms. It can be taken orally by mixing it into your cat’s food.

This product is for cat’s that are at least 6 weeks old, and a single dose can rid your cat of tapeworms within a day or two. Though it is recommended that you give your cat a second dose two weeks later, it is not required for this product to work.

Your bottle of Bayer Tapeworm Dewormer for Cats should be sealed when you receive it. If your cat refuses to take pills or eat medicated food, then this may not be the best product for you.


  • Works quickly.
  • Comes with multiple doses.
  • Affordable.


  • Can be hard to give to cats.
Dewоrmer for Dogs & Cats - Made in USA - Dewоrmer for Puppies, Kittens, Small & Large Breeds - Powerful Canine Dewоrmer for Hookwоrm, Roundwоrm, Tapewоrm - Liquid Cat Wоrmer with MAX Absorption

This product is for cats of all sizes and ages, and it treats three types of worms. Roundworms, hookworms, and tapeworms can all be removed from your cat with this product, and it works within a week.

Made in the USA, this product is made with pure herbal ingredients, and it can help prevent your cat from being reinfected.

Since this dewormer is made with a liquid formula, treating your cat can be easy. You just have to add drops of this treatment into your cat’s food or directly into your cat’s mouth.

Every ingredient in this product is non-GMO, and it doesn’t have any allergens.


  • Non-GMO and free of allergens.
  • Treats tapeworms, hookworms, and roundworms.
  • Liquid formula.


  • Multiple doses may be required.
Beloved Pets Dewormer for Dogs & Cats - Made in USA - Effective Against Tapeworms Hookworms Roundworms Whipworms - Natural Worm Treatment for Kitten & Puppy

This product can remove hookworms, whipworms, tapeworms, and roundworms in a single dose, and it works within 24 hours.

This product can be used daily to prevent worm infections, and it was created by American vets. This safe dewormer only has natural ingredients, and you can mix it with your cat’s food to treat them.

This treatment is made with a liquid formula, so it can be easy to use.


  • Treats roundworms, hookworms, tapeworms, and whipworms.
  • Natural ingredients.
  • Created by vets.


  • Many treatments may be required to see results.
VetaHelp Labs Dewormer for Dogs & Cats (2 OZ) - Treat & Prevent - Broad Spectrum Whipworm, Roundworm & Tapeworm Dewormer - Made in USA - Natural Powerful Blend - Senior Pets, Kitten & Puppy Dewormer

This product treats the six most common worms, and its liquid formula is easy to give to your cat. Pets can receive this treatment directly, or you can put it in their food.

With a purchase of this product, you get a month’s supply of treatment for your cat, and this product can be used to prevent a worm infestation. Worms can be transferred to humans from pets, so it is important to ensure your cat is worm-free.

This product is made in the United States of America, and it has 100% natural ingredients.

This treatment comes with a 100% satisfaction guarantee.


  • Natural ingredients.
  • Month’s supply.
  • Treats ringworms, hookworms, tapeworms, whipworms, Trichinella, and strongyloides (threadworms, seatworms, and pinworms).


  • Multiple treatments may be required to see results.
HerbalVet 10 Tablets Cat Intestinal Cleanse | Cat Dewormer Alternative | Cleansing Tablets for Cats, Promotes Intestinal Health | Helpful E-Book Included, 1 Bottle of Ten

This product is a monthly cleanse that helps to maintain the health of your cat’s intestines. This product is for cats that are at least 6 weeks pounds and weigh a minimum of 2 pounds.

Only 100% natural and organic ingredients are in this product, and only a single dose is required each month.

The pills that come in this product are small so that they are easier to give your cat, and a free-ebook comes with this product that provides you with step-by-step instructions on how to give your cat medicine.

There are no harmful essential oils in this product. This is not for pregnant or nursing cats.


  • Natural safe ingredients.
  • One serving required monthly.
  • Step-by-step instructions on how to feed your cat pills.


  • Pills are difficult to crush and mix into food.

Buying Guide

The Bayer Tapeworm Dewormer for Cats is one of the highest-rated products on our list. It is also affordable. This product is best for pet owners who know their cat has tapeworms and do not require treatment for other types of worms.

This product is very effective at treating tapeworms, but it can be hard to use if your cat doesn’t swallow pills well.

This Bayer dewormer works quickly, and can rid your cat of tapeworms within 24 hours.

The Petford Dewormer for Dogs and Cats is the most versatile product on our list because it can be used on pets of all ages and sizes. This product can work within a week, and it does not have any allergens. It is also non-GMO.

This product is a liquid formula which makes it easier to use

The Beloved Pets Dewormer for Dogs and Cats is our best value product. It removes the four most common worms, and it has only natural ingredients. This product was created by veterinarians, and it can work within a day.

Multiple uses may be needed to get the best results.

The VetaHelp Dewormer for Dogs & Cats treats all of the most common worms, and you will get a full month’s supply. This product is all natural, and it is made in the USA. This is the most thorough product on our list.

The HerbalVet Cat Intestinal Cleanse is a great option for those looking for a preventative treatment. This intestinal cleanse can help prevent your cat from getting worms.

This cleanse has small pills, and it comes with step-by-step instructions so you know how to use it. This product is natural. The pills are difficult to crush.

Frequently Asked Questions

Can Cat’s Be Dewormed at Home?

You can deworm your cat yourself. Treatments can be bought online, and by following your product’s instructions, you can rid your cat of worms and prevent it from getting more.

If you use an at-home treatment, it is important to follow it up with a flea collar or a flea treatment to help ensure your cat is fully protected from worms.

What Are the Symptoms for Worms in Cats?

Vomiting, constipation, diarrhea, and dark stool are all symptoms for worms in cats. A bloated belly and weight loss are also symptoms. If your cat is biting, licking, or scratching its rear frequently, that can also be a sign it has worms.

How Do I Know If a Dewormer Is Working?

Signs that your cat’s dewormer is working is if you see pieces of worms in their poop or in the skin or fur around their butt. Your cat may also scootch its behind across the floor if the dewormer is working to help get rid of the ones attached to their skin or fur.

Can People Get Worms from Cats?

Yes, you can get worms from your cat. Worms can be transferred from pets to humans via a cat licking you, although it is unlikely. Since cats often aren’t feces eaters unlike dogs, getting worms from your cat is a rare possibility.

You should still be careful, however, because a chance of transference does still exist.

Can My Cat Die from Worms?

Kittens are more likely to die from worms than adult cans, but it is still a possibility. Worms infect a cat’s intestinal tract and can affect how much a cat eats and what nutrition is passed along to them.

Roundworms are one of the biggest culprits for serious illness in kittens when infected.

You can expect your cat to be infected by worms at some point in its life, so it is best to be prepared and be sure you have a dewormer available for when your cat is infected.

Can I Pet My Cat If It Has Worms?

Yes, you can pet your cat if it has worms. It is unlikely that worms will transfer to you through petting your cat, so go ahead and continue to show your cat some love.

How Long Does It Take to Completely Deworm a Cat?

A lot of factors can determine how long it takes to deworm your cat, but it generally takes at least 24 hours. If the infestation is bad, or if the treatment requires multiple doses, then it can take up to 2 or 3 weeks to completely rid your cat of worms.

What Are Side Effects of Deworming a Cat?

Common side effects that can come with deworming a cat include diarrhea, vomiting, excessive salivation, and hair loss if a topical treatment is used.

These side effects do not have to be worrying, but if you see your cat acting unusual after a deworming and it concerns you, then do not hesitate to speak with a vet and make sure your pet is okay.

What Happens If Worms in My Cat Are Left Untreated?

Untreated worms can be fatal for cats, especially kittens. Untreated worms can cause your cat to become anaemic or have blockages in their intestines. It is best to treat any worms in your cat immediately.

How Often Should Cats Be Treated for Worms?

For kittens, it is best to deworm them every 2 weeks until they are 12 weeks old. Cats that are less than 6 months old should be treated every month. After six months of age, cats should be treated at least every 3 months to prevent a worm infestation.

25 Things You May Not Have Known About Cats

“The wisdom of cats is infinitely superior.”--Hippolyte Taine

1. Stray cats are not a lost cause.

Because stray cats generally have less experience around human beings, they can come across this more skirmish and less friendly. This may lead some people to believe that stray cats will always be like this. In reality, this couldn’t be further from the truth; with time and effort, stray cats can become lifelong companions. 

2. Declawing a cat is inhumane.

Some people may want to declaw a cat due to not wanting their furniture to be scratched. For a cat, this gives the cat a disability that it wouldn’t otherwise have. Without their claws, a cat cannot defend itself and may develop arthritis.

3. Cats require work.

Cats are naturally aloof and independent creatures. Therefore, you may be surprised to find out that cats need consistent playtime day after day. While cats may not necessarily need the same amount of attention as dogs, they still need a considerable amount of care.

4. Cats are strictly carnivores.

Since a vegetarian diet has several nutritional and health benefits for human beings, many people may assume that vegetables would naturally benefit cats. In reality, feeding a cat a strictly vegetarian diet will deprive them of key nutrients they need to maintain a healthy life. 

5. They are highly intelligent.

Due to their more independent mannerisms, most people think that cats cannot learn or be trained in the same way that dogs can. Cats are able to learn how to walk on a leash and how to hold out their paw, as well as how to sit.

6. They use their meows to get what they want.

Cats utilize different tones and vocalizations in order to convey what they need to their humans. Generally speaking, the meow a cat uses to tell their human that they need to eat will be vastly different from the meow they use when they need to use the restroom and vice versa. 

7. They thrive on a schedule.

Cats need a schedule because they need a form of consistency in their lives. After a cat eats breakfast, they will want to play and hunt to satisfy their prey drive. After that, you’re likely to see your cat snoozing on the couch.

8. Cats demonstrate their love through subtle body language.

Cats are the exact opposite of dogs in terms of how they display their affection. Where a dog might excitedly jump on you and lick your face, your cat will like to spend quiet time with you. If they are comfortable with you and trust you, then they will slowly blink their eyes to let you know.

9. Older cats might be a better fit for your home than young kittens.

Everyone loves to see a cute, cuddly little kitten full of life. However, kittens require far more time and care than older cats to ensure that they develop a strong bond with you, know how to use the litter box, and where it is acceptable for them to scratch. Older cats are more likely to have a laid-back disposition and can provide you a source of comfort without the time that young kittens require.

10. They do not understand corporal punishment.

Never hit your cat or spray them with a spray bottle, because they don’t understand why you are doing it and they will most likely lose all trust and respect for you.

11. Not all cats are made equal.

Not all cats are aloof and prey-driven animals. While some cat breeds such as the American Shorthair are more indifferent, cat breeds such as the Birman and the Ragdoll require almost the same amount of attention as dogs do. 

12. Cats can have a wide range of preferences.

What is loved and cherished by one cat may be totally repulsive to another. One cat may be mesmerized by a laser toy, whereas another cat would be content to sit at the window and watch birds all day long. This also goes for things such as litter boxes and food.

13. Spaying or neutering your cats is essential to their overall quality of life.

Every time a female cat goes into heat, that increases their risk for ovarian cancer and other health problems. Spaying your cat will give your cat peace of mind and protect their health. Male cats that have not been neutered may display behaviors such as marking their territory and become agitated if they are inside and smell a female cat in heat outside; neutering a male cat will get rid of this problem.

14. Superstitions may prevent some cats from being adopted.

Black cats are the least likely cats to be adopted and taken home thanks to the superstition that they give people bad luck. 

15. They need higher ground.

Cats need higher ground for several reasons.

They need higher ground if:

  • You have more than one cat in your home.
Cats can avoid conflict by having several different areas for them to perch on.
  • You want your cat to feel more confident.
Because cats are naturally predatory animals, having higher ground allows them to hunt for prey below them and feel confident in their surroundings.
  • You want your cat to end up in less inconvenient spaces.

Since cats have a need to get up on higher ground, they may wind up in places that can present a potential danger to them; giving them spaces to jump up can deter them from any dangerous spots. 

16. Cats show trust in a unique way.

When your cat rolls over to expose his or her belly, that is a demonstration of their trust because their belly is an especially vulnerable part of their anatomy. However, if your cat starts to wag their tail, this is a sign that you should back off.

17. Cats are the most popular pet in the United States.

There are over 87 million felines in the US alone.

18. They spend the majority of their lives asleep.

It’s no wonder that the term “cat nap” was coined for taking a nap in the middle of the day. Cats spend over 50% of their lives sleeping, which equals to between 13 and 16 hours per day.

19. Cats share a surprisingly large amount of their family tree with tigers.

Both tigers and cats exhibit behaviors such as stalking prey, marking their territory, and pouncing on prey.

20. Cats have the ability to heal.

A cat’s purring has the same frequency that their muscles and bones use as they repair themselves. Their purring typically ranges between 25 and 150 Hertz.

21. They are mostly lactose intolerant.

While the media and Disney movies like to portray cats as enjoying milk from saucers in an alleyway, the reality is that most cats are actually lactose intolerant.

22. Cats that have an extra toe or two are referred to as polydactyl cats.

Ernest Hemingway owned several of these polydactyl cats in his home.

23. Cats are skilled hunters.

When cats are stalking their prey, they generally place their front paws where their back paws were, which prevents tracks being made in the ground and helps to reduce the noise they make.

24. They have incredible senses.

Can detect movement even in low lighting, and their sense of touch and their placement in their environment are impacted by their whiskers.

25. Cats have a great sense of smell.

They have over 200 million odor-detecting cells on the skin of their noses. Humans, by contrast, only have about 5 million odor-detecting cells in their nose.

Did you know about all of these facts surrounding cats? Cats are unique companions that require you to gain their trust through understanding them and their cat behaviors. With this knowledge, you can adopt a kitten or older cat today and keep them well taken care of.

Final Verdict

If you’re interested in treating or preventing worms in your cat, then go ahead and check out one of the products we’ve reviewed today.

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