The Best Dewormer for Cats: Updated for 2022

Updated: May 23, 2022

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  1. REVOLUTION Plus Topical Solution for Cats
  2. REVOLUTION Plus Topical Solution for Cats
    • Topical application is much easier than pills
    • Broad appeal with prevention for ear mites, fleas, and ticks as well as worms
    • Easy regulation of dosage based on box type
    Check Chewy
  3. HARTZ UltraGuard Rid Worm Dewormer
  4. HARTZ UltraGuard Rid Worm Dewormer
    • Best option for targeting roundworms specifically
    • The liquid formula is easy to mix with cat food and guarantee a 100% ingestion
    • Easy dosage, requiring only two treatments
    Check Chewy Check Amazon
  5. BAYER Dewormer for Tapeworms for Cats
  6. BAYER Dewormer for Tapeworms for Cats
    • The best option for targeting tapeworms specifically
    • Three doses, higher than competing products but very effective at targeting tapeworms specifically
    • Can be crushed and added to food for easier application
    Check Chewy Check Amazon

Worms in cats can lead to a variety of major health issues including diarrhea, vomiting, weight loss, a distended abdomen, lesions on the skin, and a dull coat that lacks its normal shine. If you’re concerned your cat is facing a worm infestation, your first step should be to contact your veterinarian to confirm this is the cause. Once the diagnosis is confirmed, choosing the best deworming will be important.

Dewormers are available in a variety of forms, such as liquids, tablets, and natural options, at dosages for both cats and kittens. Some can be purchased without vet prescriptions, while others may require a prescription. Many dewormers feature a broad-spectrum formula to combat various types of worms like tapeworms, roundworms, hookworms, and whipworms, while others may be more specialized for one particular species.

If you need to find the best broad-spectrum or specialized dewormer for your cat, you’ve come to the right place. We’ve researched for you and have put together this list of the top choices on the market. Continue reading to find the dewormer that will help clear up your cat’s worm infestation and return them to a healthy state.

We’ve updated our top choice this year from the pill based Drontal solution to the topical Revolution Plus treatment instead. Not only is this method easier to give to your cat, it has broad spectrum applications like treating ear mites and fleas as well as worms. Lastly, the ability for pet owners to regular dosages more easily based on the three choices offered makes it easier to regular the correct, healthy level for your cat or kitten.

Verified Review: User experience

A-Z staffers have dealt with worms many times over the years. While all of the soslutions here worked well, the top choice, Revolution Plus was by far the easestt to apply and dose correctly. Furthermore, it came with a variety of other protections and benefits uncommon in other dewormers

We consulted other user reviews to confirm our experience was representative of other cat owners and can confirm similar experiences.

The Top Picks for the Best Dewormers for Cats: Ranked

#1 Overall Best Dewormer for Cats: Revolution Plus Topical Solution

The Revolution plus topical solution for cats is our top choice for dewormers. It is designed for use in both cats and kittens who are at least 2 months old and weigh at least 5.6 pounds. Because it is a topical solution, Revolution plus is the easiest to apply of the other treatments here. Additionally, it has broad other benefits like killing fleas, ear mites, roundworms, and hookworms. Because it can be used on both cats and kittens it is a true one stop shop for cat deworming, and much more.

Revolution plus comes in three different colors, gold, orange, and green. Gold is suitable for 2.8 – 5.5lb cats, orange is suitable for 5.6 – 11lb cats, while green is appropriate for 11.1 – 22lbs. Please check your pet’s weight in order to make the correct product choice here.

Active ingredients include selamectin and sarolaner, in differing quantities based on your pet’s weight. The dosage for all box colors is the same. Owners should administer the entire contents of each tube monthly.

1 Overall Best Dewormer for Cats
REVOLUTION Plus Topical Solution for Cats
  • Topical application is much easier than pills
  • Broad appeal with prevention for ear mites, fleas, and ticks as well as worms
  • Easy regulation of dosage based on box type
Check Chewy

Best for Roundworms:Hartz UltraGuard

If your cat is suffering from Toxocara Canis or Toxacaris Leonia, more commonly known as roundworms, try the Hartz Ultra Guard Rid Worm treatment. This is a liquid dewormer that is designed to be mild, yet very effective, at getting rid of roundworms. It is suitable for use in cats and kittens who are at least 8 weeks old.

The liquid formula is designed to be easy to give to cats. Simply mix the syrup in with food for your cat or dispense it directly into their mouth.

You’ll need to give two treatments with this dewormer to effectively rid your cat of worms. The second treatment should take place two weeks after the initial treatment.

Best for Roundworms
HARTZ UltraGuard Rid Worm Dewormer
  • Best option for targeting roundworms specifically
  • The liquid formula is easy to mix with cat food and guarantee a 100% ingestion
  • Easy dosage, requiring only two treatments
Check Chewy Check Amazon

Best for Tapeworms: Bayer Tapeworm Dewormer for Cats

Tapeworms are another common parasite that cats deal with. We like the Bayer Tapeworm Dewormer for Cats for treating annoying tapeworms.

This bottle includes three doses to treat your cat for tapeworms. You can either place the tablets in a pill pocket or crush them to mix with your cat’s food for easing dosing. There are three doses, which is less convenient than the two other products listed here, but if you are specifically targeting tapeworms this is the most specifically designed product for that use case to help your cat or kitten.

You can use the Bayer Tapeworm Dewormer in cats or kittens who are at least 6 weeks old.

Best for Tapeworms
BAYER Dewormer for Tapeworms for Cats
  • The best option for targeting tapeworms specifically
  • Three doses, higher than competing products but very effective at targeting tapeworms specifically
  • Can be crushed and added to food for easier application
Check Chewy Check Amazon

How to Know if Your Cat Needs a Dewormer

Scheduling an appointment with your cat’s veterinarian is the best way to confirm they are dealing with a worm infestation. There are several symptoms that can indicate your cat has worms. These can include:

  • Diarrhea
  • Vomiting
  • Constipation
  • Dull-looking coat
  • Pale gums
  • Tarry and dark feces
  • Weight loss
  • Distended abdomen
  • Pale gums
  • Excessive licking of their anus
  • Dehydration
  • Low blood pressure
  • Weakness and lethargy

In most cases, worms are not a life-threatening condition for cats. It is estimated that up to 45% of cats will be infected with worms at some point in their life. Outdoor cats are at an even greater risk of getting worms than indoor cats.

What Type of Dewormer Should You Get?

Dewormers are available in tablet and liquid form. Both options perform similarly, and the right choice for your cat will likely be the one that you will be able to administer to them. You also want to make sure that you pay attention to the correct dosage for cats or kittens and that the dewormer you choose targets the specific type of worm that your cat has.

Some of the most common types of worms cats get include roundworms, tapeworms, hookworms, and whipworms. If you are unsure what type of worms your cat has, consult with their veterinarian to make sure you’re treating the right thing.

About the Author

AZ Animals is a growing team of animals experts, researchers, farmers, conservationists, writers, editors, and -- of course -- pet owners who have come together to help you better understand the animal kingdom and how we interact.

The Best Dewormer for Cats: Updated for 2022 FAQs (Frequently Asked Questions) 

What is the best dewormer for cats?

The best dewormer for cats can vary based on the specific type of worms your cat has. Broad-spectrum dewormers are often a popular choice since they treat multiple types of worms. We chose the Bayer Drontal Broad Spectrum Dewormer as our top pick for the best dewormer for cats.

How much is dewormer for cats?

The cost of a dewormer for cats will vary depending on whether you choose tablets, a liquid, or a natural dewormer. However, in general, most dewormers seem to cost between $10 and $25.

What dewormer do vets use for cats?

Different vets have different preferences, but many choose Bayer’s Drontal Broad Spectrum Dewormer.

Can I deworm my cat myself?

Yes, you can deworm your cat on your own. However, you should consult with their veterinarian to determine the exact type of worms and that the best dewormer to eliminate that particular species. Since many dewormers are available without vet prescriptions, you can then find and purchase your own dewormer, or go with the recommendation from your vet.

What are the symptoms of worms in cats?

Worms in cats can lead to different symptoms. These can include, but aren’t limited to, weight loss, a distended abdomen, vomiting, diarrhea, lesions on the skin, and a dull coat, tarry feces. If left untreated, worms can also cause more serious concerns such as shock, low blood pressure, dehydration, weakness, and even occasionally death.

What can I expect after deworming a cat?

After giving your cat a dewormer, it can take between two and three days for the worms to be gone. You may need to give a follow-up dose after a few weeks if the worms have not all gone or have returned from your cat licking an area that had worm eggs and caused themselves to get infected again.

Do cats feel ill after deworming?

No, most cats will begin feeling much better after being dewormed. Having worms can cause them to feel ill, so once you treat the worms, your cat’s behavior and personality may return to normal.

Do cats poop out worms after being dewormed?

Yes, after cats have been dewormed, the dead worms will come out with your cat’s poop.

What is a natural dewormer for cats?

If you are looking for a natural way to deworm your cat before trying an over-the-counter or prescription treatment, there are a few options to consider. However, it is always best to consult with your veterinarian before trying one of these treatments to ensure they are the safest approach for your cat.

A few natural ingredients that work for deworming cats include:
• Ground raw pumpkin seeds (1 tsp per day for every 10 pounds of weight mixed with food)
• Food-grade diatomaceous earth (mixed with each meal your cat eats)

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