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15 Best Cat Flea Treatments In Canada

Fleas are every pet owner's worst nightmare. Not only is it revolting to consider sharing your house with hundreds or thousands of small pests, but fleas can also annoy your cat.

They can drive your cat to scratch itself incessantly, resulting in open wounds and severe illnesses. Fleas can also transmit tapeworm and the germs responsible for cat scratch disease.

Furthermore, because kittens are prone to flea-related anemia1, it is dangerous for them to come into contact with these parasites.

If your cat is exhibiting flea signs, you must take action as soon as possible. Fortunately, there are various treatments you may attempt at home to eliminate the infestation before it spreads.

Continue reading for BestForPets' (bestforpets.org) reviews of the best cat flea treatments in Canada.


Advantage II Large Cat – Overall Winner

  • Solution in liquid form
  • Adults weighing more than 9 lbs.
  • Imidacloprid and Pyriproxyfen are generic names.

Advantage II Large Cat is the most effective overall cat flea treatment on the market in Canada. This product is intended for adult cats weighing more than nine pounds.

This veterinarian-recommended medication kills all life stages of fleas on contact, breaking the life cycle and preventing further infestations.

The mixture is waterproof and can be used for up to a month. It comes in packs of two, four, or six treatments, so you may choose the choice that works best for your family.

Imidacloprid paralyzes and kills fleas by attacking their nervous system, whilst Pyriproxyfen acts as an Insect Growth Regulator (IGR) to kill the eggs and larvae.

Though we focused on their Large Cat treatment today, they also have alternatives for cats of other sizes.

While this recipe is simple to use, several customers reported that it did not absorb as soon as planned.


  • Contact action
  • The formula is waterproof.
  • There are three pack size possibilities.
  • Stops re-infestation


  • It is possible that the absorbency will be slower than predicted.


Best Value – Hartz Groomer’s Best Flea Comb

  • Form: Brush
  • All stages of life
  • N/A for generic name

If you’re looking for the best flea treatment in Canada for the money, this Hartz comb is a no-brainer. This comb has extra-fine teeth for brushing away adult fleas and eggs.

Its one-of-a-kind design is suitable for cats and dogs with almost any coat type or length. When your cat is flea-free, you can resume regular combing with this comb.

You should first wash it in hot soapy water to ensure that any fleas, larvae, and eggs have been removed. Because of its ergonomic grip, the comb is easy to hold and manipulate.

According to some complaints, this comb does not perform well on cats with long fur.


  • Option for drug-free flea treatment
  • Excellent for most coat lengths and kinds.
  • Can be used repeatedly
  • Affordable
  • It is easy to use.


  • Long jackets are ineffective.


Capstar- A Premium Option

  • Oral tablet form
  • Life Stage: Every Life Stage
  • Nitenpyram (generic name)

When it comes to flea control, many pet owners have no financial constraints. Though Capstar’s treatment is a little more expensive than others on our list, it is well worth the money.

This medication is an oral tablet that can start killing fleas within 30 minutes. The package contains six fast-acting tablets that should be taken daily until the flea problem is cured.

It is intended for usage in both cats and dogs that weigh less than 24 pounds. Please keep in mind that this treatment is only intended to kill adult fleas.


  • Oral pill that is simple to administer
  • Works quickly
  • It includes six pills.


  • It has no effect on eggs or larvae.


Advantage II Kitten – Recommended for Kittens

  • Solution in liquid form
  • Kitten life stage
  • Imidacloprid and Pyriproxyfen are generic names.

Advantage No. 2 Kitten is a veterinarian-recommended medication that kills all life stages of fleas on kittens over the age of eight weeks.

This treatment is suggested for cats weighing two to five pounds. It begins working within 12 hours and is capable of killing eggs, larvae, and adult fleas on contact.

It can prevent re-infestation because it works on all phases of flea life. Because this formula is waterproof, it will continue to work even after your kitty has been bathed.

It includes two months of topical treatments, so if the problem is not resolved after the first treatment, you will have another chance.

Please wait until this product has dried before allowing your kitty to clean itself.


  • There are two doses included.
  • Works on all stages of flea life.
  • On contact, it kills.
  • Waterproof


  • After treatment, the kitten must not lick itself.


Flea Collar FIFIPETS

  • Form: Collar
  • All Stages of Life
  • N/A for generic name

This flea collar can provide eight months of flea protection and prevention. It contains linaloe oil, citronella oil, lavender oil, and lemon eucalyptus oil.

Each ingredient provides a distinct function. Lemon eucalyptus, for example, has antibacterial and insecticidal effects, and lavender oil can be used to soothe irritated skin.

Citronella oil repels insects, whereas linaloe oil is calming. This collar is believed to keep lice, sarcoptic mange, ticks, fleas, and flea larvae at bay. It is simple to adjust to properly fit your cat’s neck.

The collar has a strong odor at first, therefore it may need to be aired out before usage.


  • It is effective against ticks and sarcoptic mange.
  • Ingredients derived from nature
  • Can be soothing


  • Smelly

What You Should Know About Cat Flea Treatments in Canada, According to a Buyer's Guide

Fleas are not a rite of passage for every pet owner, and they should not be taken lightly. The instant you believe your cat has fleas, you must begin treating them.

Before treating your cat, you should learn more about fleas and what you can do to keep them away in the future.

How Do I Determine If My Cat Has Fleas?

There are numerous tell-tale indicators that your cat has fleas. The sooner you identify the issue, the easier it will be to resolve.

Furthermore, early identification helps prevent potentially fatal side effects in cats, such as tapeworms and anemia.

The following are some of the most prevalent flea symptoms:

  • Loss of hair
  • Itchiness has increased.
  • The fur has peppery flecks on it (feces)
  • Skin rashes
  • Irritation of the skin
  • Grooming that is excessive
  • Lethargy
  • Gums that are pale

How to Flea-Proof Your Home

A female flea can lay up to 50 eggs every day, did you know? These fleas can be transferred from your cat’s fur to your bedding, furniture, and carpet.

If you don’t deal with the fallen fleas, you can end up with a full-fledged infestation.

Once you’ve determined that your pet has fleas, it’s time to thoroughly clean your home.

To begin, vacuum every nook and cranny of your space. Don’t forget to clean any cushioned furniture and cracks in your flooring to ensure that every egg is gone.

It might be beneficial if you discarded the vacuum bag or rinsed the canister with hot, soapy water afterward.

Remove any bedding or sofa covers and place them in the washer. You can also wash any of your cat’s beds if they fit. To ensure that no fleas survive the wash cycle, use hot water.

You might also use a chemical solution to treat your property. However, consult your veterinarian before putting any chemical in your space, since some might be harmful if not utilized appropriately.

How to Keep Cat Fleas Away in the Future

Now that you’ve found the finest flea treatment for your cat, you’ll need to do some effort to keep your cat flea-free in the future.

If your cat spends a lot of time outside, you may wish to limit their time outside. If that isn’t possible with your daring feline, you’ll need to make sure fleas don’t make your yard their home.

Cut your grass and remove any brush where fleas could hide. You might also use a flea control product in your yard, but make sure it’s safe to use around pets first.

Keep up with your housework next. Vacuum thoroughly once a week for several months after your cat’s initial flea exposure.

This is because mature fleas may survive for up to three months by leaping on anything.

According to researchers, for every adult flea found, there could be up to 100 young fleas ready to pounce.

Larvae can lay latent for nine months, so even if you think you’ve eliminated your flea problem, it may reappear later.

Vacuuming on a regular basis can help to eliminate any remaining eggs and larvae.

Is it possible for fleas to kill my cat?

Fleas are not only a nuisance, but they can also be fatal if not treated promptly. Kittens are the cat demographic most at risk of suffering severe difficulties as a result of flea infestation.

When kittens catch fleas, they don’t usually exhibit the expected symptoms, such as itching skin. Because their bodies are so little, they are vulnerable to anemia from the blood loss produced by fleas eating on them.

The following are indicators of anemia to look out for:

  • Gums that are pale
  • Inappetence
  • Weakness
  • Lethargy
  • Collapse

If you suspect your kitten has fleas, you should take him to the clinic as soon as possible. They can address the issue and offer the immediate care your kitten requires.


Advantage II is the best overall cat flea treatment available in Canada because to its fast-acting and waterproof composition.

Hartz’s flea comb is the best value option because it is inexpensive and drug-free. You can try our top option, Capstar’s oral tablets, for a little more money.

The tablets begin killing fleas in as little as 30 minutes, allowing you to rid your home of fleas quickly.

Flea remedies might be difficult to come by in Canada, especially if you like to shop online.

If none of the reviews above about the best cat flea treatments in Canada make sense to you, BestForPets (bestforpets.org) suggests talking to your vet. 

They can make suggestions and even treat your cat in the office.

Author Image

Dr. Deborah Fletcher

Deborah R. Fletcher, DVM, is a skilled veterinarian with more than 15 years of experience dealing with companion and exotic animals. She has experience caring for a variety of animals, including household cats and dogs, reptiles, birds of prey, and even primates. Dr. Fletcher is a valuable part of the BestForPets team, where she contributes to their aim of providing pets and their owners with the finest possible treatment and services.

Veterinarian (DVM) Dr. Deborah Fletcher


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