Get

In Your Inbox

Catster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

Flea Treatments for Cats: Our Vet Explains

Share

cat having flea treatment

Fleas. All cat owners want to keep their feline flea-free. No one wants fleas in their house, and getting rid of them can be a frustrating battle if you do have them. What are your options for treating fleas in cats? Thankfully, there are a few things that you can do to keep fleas off your cat!

divider cat paws oct 2024

What Happens to a Cat When They Have Fleas?

Fleas are external skin parasites. They like to live on your pets, although they won’t say no to biting you occasionally. When fleas lay eggs, the eggs fall off your cat’s body and into the environment. That can mean your cat’s bed, your bed, the carpet—just about anywhere.

Skin Conditions

When fleas bite your cat, your cat is exposed to their saliva. Many animals are allergic to these bites and develop severe pruritus or itching. Depending on the extent of the scratching, your cat could lose hair or even develop secondary bacterial infections. We often call the condition flea allergy dermatitis.

Miliary dermatitis in a cat caused by flea bite allergy
Image Credit: MeowDr, Shutterstock

Diseases

External parasites can transmit a variety of diseases, and fleas are no exception. Your cat can become infected with tapeworms if they ingest a flea, usually when grooming. Other health diseases of concern include:

  • Anemia: Caused by the fleas feeding on your cat’s blood
  • Feline infectious anemia: Caused when a microscopic parasite from fleas attaches to your cat’s red blood cells and is destroyed
  • Cat scratch fever: Can be passed on to people as a zoonotic condition

divider cat paws oct 2024

Determining if Your Cat Has Fleas

You may be able to find fleas on your cat just by looking them over, but this is easier said than done. Most cats groom themselves regularly, so finding a flea is challenging. You can use a flea comb to find fleas, as well as “flea dirt” or flea feces.

If you need to speak with a vet but can't get to one, head over to PangoVet. It's an online service where you can talk to a vet online and get the advice you need for your pet — all at an affordable price!

PangoVet_Mention-in-Content for PangoVet2 save money

Types of Prevention

Cats are not small dogs. That simple fact is vital for you to keep in mind. Applying your dog’s flea prevention product to your cat can be dangerous, even downright deadly. Stick to a reliable product that is formulated for cats. You should talk to your veterinarian about any product before you use it, as some products are contraindicated in cats with seizures because they lower the seizure threshold.

1. Topicals

Topical products are some of the most effective and broadest spectrum. They are applied to the back of the neck and allowed to dry. Some cats are sensitive to the application and lose hair at the application site.

Revolution Plus

Revolution Plus is one of the best products on the market. In one tube, it protects against fleas, ticks, heartworms, ear mites, roundworms, and hookworms. You get internal and external parasite protection. It lasts for a month.

Active ingredients: Sarolaner, Selamectin
Sizes: 2.8–5.5 lbs; 5.6–11 lbs; 11.1–22 lbs
cat with tick
Image Credit: anastasiya parfenyuk, Shutterstock

Revolution

Revolution has been out even longer than Revolution Plus. The advantage of this monthly product is that it is in tiny kittens as the weight range for the smallest size is 0–5 pounds. The protection profile is similar to Revolution Plus, except the tick protection is off-label.

Active ingredients: Selamectin
Sizes: 0–5 lbs; 5.1–15 lbs; 15.1–22 lbs

Advantage Multi

Advantage Multi is another broad-spectrum product. It offers protection against fleas, heartworms, ear mites, roundworms, and hookworms. It’s also a one-month administration.

Active ingredients: imidacloprid, moxidectin
Sizes: 2–5 lbs; 5.1–9 lbs; 9.1–18 lbs

Bravecto

Bravecto is one of the best options for convenience. It kills fleas and ticks for 12 weeks after application of this topical product. Note that it doesn’t offer heartworm protection.

Active ingredients: Fluralaner
Sizes: 2.2–6.2 lbs; 6.2–13.8 lbs; 13.8–27.5 lbs

Revolt

Revolt tends to be a less expensive option for flea and heartworm protection. It has virtually the same protection as Revolution Plus and lasts 30 days.

Active ingredients: Selamectin
Sizes: 0–5 lbs; 5.1–15 lbs; 15.1–22 lbs

Advantage XD

Advantage XD is an excellent product to consider for two reasons: it kills fleas for two months and has a size for large cats, so you don’t have to apply multiple sizes.

Active ingredients: spinetoram
Sizes: 1.8–9 lbs; over 9 lbs

2. Oral

Some cats do very well with oral flea prevention products. If your cat has a history of seizures, you must speak to your veterinarian to see if these options are safe for your dog.

Credelio

Credelio is a newer kid on the market. It has a yeast and vanilla flavor that most cats love, so it is highly palatable. It protects against fleas and ticks for a month.

Active ingredients: lotilaner
Sizes: 2.0–4.0 lbs, 4.1–17 lbs

Capstar

Capstar lasts only 24 hours, but it’s fast at killing fleas when you’re in a bind. You can give it repeatedly, but the best plan is to get a jumpstart on getting rid of fleas and transitioning to a longer-acting product.

Active ingredients: nitenpyram
Sizes: 2–25 lbs

3. Collars

There are a lot of flea collars on the market, but many of them are relatively ineffective.

Seresto

Seresto is not just effective as a flea and tick prevention product. It’s also pretty affordable when you see it provides your cat with eight months of protection from these external parasites.

Active ingredients: Flumethrin, imidacloprid
Sizes: One size collar for cats and kittens
White cat wearing a green collar from fleas and ticks
Image Credit: Inga Gedrovicha, Shutterstock

Considerations for Choosing a Flea Prevention Product

You’ll want to pick a product that is both safe for your cat and effective. Are you able to give a pill or apply a topical?

Talk with your veterinarian when you’re looking at your options, as they should be able to make a recommendation that’s best for your cat. Try to avoid “home remedies” for fleas, such as garlic powder or essential oils, unless your veterinarian gives you the go-ahead. Some essential oils, like peppermint oil, can drive bugs away, but many essential oils are toxic to pets.

divider cat paws oct 2024

Frequently Asked Questions (FAQ)

How do you apply flea prevention to your cat?

If you are using a topical flea prevention product, apply it to the back of your cat’s neck. Part the hairs so it goes down their skin and make a line of the liquid. Allow the product to dry before letting your pets play together.

Can you combine different flea treatment options?

You should only combine flea prevention products if your veterinarian recommends it. Do not combine two oral products or two topical products because you could create a toxic exposure.

cat owner vising the vet with pet cat
Image Credit: H_Ko, Shutterstock

Can you use out-of-date flea prevention in or on your cat?

You should not use expired flea prevention on your cat. The chemicals could break down past the expiration date, making them ineffective or potentially dangerous to your cat. Speak to your vet about options if one product does not work.

divider cat paws oct 2024

Conclusion

No one likes fleas. Finding the best flea prevention for your cat can be very challenging. Work with your veterinarian to decide if you need flea, tick, and heartworm protection.

Related Reads:


Featured Image Credit: goodluz, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything cat

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.




How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Catster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.


Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

A Jerusalem SPCA Volunteer Talks About Street Cats, Violence & One Special Kitty

I spent a week in Jerusalem, and I was amazed at how many feral cats live on the streets of this beautiful city...

Could Cats Survive in a World Without Humans? Feline Independency Facts

Cats are highly independent pets that seem to enjoy being around humans, even if they don’t “need” us the way dogs and other...

What Place Do Cats Have in Japanese Culture? History, Art & Folklore

Felines are quite popular in Japan, and you will find them depicted throughout Japanese pop culture, from the “Maneki Neko,” the beckoning cat,...

Can Cats Eat Marshmallows? Vet Approved Nutritional Facts & Risks

If you’re enjoying a cup of hot chocolate with marshmallows on top, or are feasting on mallows directly from the bag, it can...

More related

How Long Does Grief Last After Losing A Cat? 7 Methods Can Help

Cats and humans can form deeply meaningful friendships with each other. So, it’s understandable and completely normal to experience grief after the loss...

How to Get Cat Pee Smell & Stains Out of a Mattress in 5 Easy Steps

Cats are renowned for their good litter box habits. However, sick or senior cats can have the occasional accident. Cat urine has an...

100+ Pokémon Inspired Cat Names: Ideas for Unique & Adorable Cats

We understand how explosive the cultural phenomenon Pokémon has become and how passionate their fan base is…because we happen to be a part...

My Cat Coughing Sounds Like a Duck, What’s Wrong? Vet-Verified Facts

If your cat has recently been coughing, you may wonder if something is going on that requires a veterinary examination, particularly if your...

Keep reading

Can Cats Eat Eggplant? Vet-Reviewed Nutrition Facts

We all love sharing food with our cats but often wonder what foods are fine or harmful. Eggplant might be one of those foods you are unsure about. Even though you might be tempted to share some eggplant with your...

Can Cats Eat Eggplant

Can Loud Music Harm a Cat? Vet-Reviewed Info

Ears, unfortunately, don’t have the handy ability to shut. If you enjoy listening to loud music, you’re forcing your cats to endure it, too. If you share your house with a cat, you might already be aware that loud noises...

cat lying between speakers

Can Cats Eat Cheese Puffs or Balls? Vet Reviewed Risks & Health Facts

As a responsible and caring cat owner, you may sometimes find it hard to resist those pleading eyes when you’re enjoying a delicious snack. With their crispy texture and savory flavor, cheese puffs or cheese balls are a popular favorite...

Can Cats Eat Cheese Puffs or Balls

8 Best Grain-Free Kitten Foods of 2026 – Reviews & Top Picks

Adding a new kitten to your family is an incredibly exciting time, but it’s also one that requires many decisions! From what sort of bed your kitten should sleep in to what toys to buy them, there’s so much to...

kitten eating cat food

How to Introduce a Cat to a New Home: 6 Tips & Tricks

If you’re bringing a new cat into your home and you already have one or more other pets, it can take some time for them to adjust. Your new cat may be nervous about entering a new environment, and your...

Balinese cat lying on sofa at home

Can Cats Kill Weasels? Our Vet Explains

The domestic cat is the most popular pet animal in the world today. Domesticated thousands of years ago, cats have followed humans all over the world throughout history. As a result, they’re considered invasive in many parts of the world,...

Siberian Weasel

Multiple Myeloma in Cats: Our Vet Explains Signs, Causes & Treatment

If you’re interested in multiple myeloma, your cat may have been recently diagnosed with this rare disease. If this is the case, we’re very sorry and understand you’ll want to know everything about the condition and what to expect moving...

sad, bored or sick cat

Socializing Adult Cats: Vet-Approved Guide & What to Avoid

Socializing adult cats can be a challenging but rewarding process. It’s important to remember that every cat is different, and what works for one might not work for another. With patience, understanding, and the right approach, it’s possible to help...

male cat smelling female cat

Love Cats? So Do We! Join the Catster Community

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.




Sign up for the Catster Email Newsletter

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.