Capstar Flea Oral Treatment for Cats, 2-25 lbs

By Capstar
Rated 4.1066 out of 5 stars


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Total Price: $86.15

About This Item


  • Kills adult fleas to help prevent infestations on cats and kittens weighing between 2-25 pounds.
  • Capstar is formulated to start killing fleas within just 30 minutes to help give felines fast-acting relief.
  • This treatment can also help quickly treat flea infestations.
  • Capstar can be given to your cat companion as often as once a day.
  • Easy-to-give tablets are mess-free and odor-free, unlike some topical solutions.

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Play Video: Learn More About Capstar From Our Team of Experts
Learn More About Capstar From Our Team of Experts

This product was previously sold as Capstar Flea Treatment for Dogs & Cats. Dog parents, Capstar for Dogs is now available—it's the same great results in a brand new package.

About Capstar Oral Flea Treatment

Start Killing Fleas in Just 30 Minutes

When you have a flea infestation, you need to act fast! Capstar starts killing fleas within 30 minutes and is available without a prescription, so you don't have to wait. One tablet kills 90% of adult fleas in 4 hours for dogs and 6 hours for cats, offering quick relief for your pet.

Easy Oral Delivery

Capstar oral tablets go to work quickly to protect your pet from the inside out and start killing fleas in just 30 minutes! To give Capstar tablets, place the pill directly in your pet's mouth or hide it in food. If you hide the pill in food, watch closely to make sure your pet swallows the pill. If you are not sure that your pet swallowed the pill, it is safe to give a second pill.

Treat Every Cat & Dog in your Home

Capstar is available in two dose strengths for dogs and one dose strength for cats. Capstar is for dogs and cats 2 pounds or greater and 4 weeks of age and older. Each box of Capstar contains 6 fast-acting tablets, so you can treat all the pets in the household. Fleas can reproduce on untreated pets and allow infestations to persist. Stop your pet's flea infestation dead in its tracks with Capstar.

Quick Relief with One Dose

Treatment of flea infestations in dogs and cats

Easy Oral Delivery

Recommended by veterinarians

No prescription needed

About Capstar

Capstar is a fast-acting, oral flea treatment for dogs and cats that kills adult fleas before they can start an infestation. One tablet kills over 90% of fleas within 4 hours for dogs and 6 hours for cats. Unlike topical treatments, Capstar works from the inside out-- there's no mess, no chance of rubbing off and no need to isolate your pet. Treat the pets in your home with the flea killer that starts working in just 30 minutes. Always read, understand and follow label and use directions.
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Questions & Answers

37 Customer Questions

can you administer this pill and also being using a topical flea product as well ?
Answer by ChewySep 11, 2019
If you are currently administering a monthly flea infestation preventive and your pet still gets fleas, you may administer Capstar treatments daily, as needed, for quick relief against a flea infestation. Capstar may also be used with flea shampoos, as well as heartworm preventives, antibiotics, vaccines and de-worming medications.

can you cut the pill in half for smaller cats?
Answer by ChewySep 01, 2021
This treatment comes in tablet form and measures approximately 6 millimeter in diameter and 1 millimeter thick (see attached for reference). It is suitable for cats 2 pounds or greater and 4 weeks of age and older. While it is possible to crush or cut this treatment in half the full dose should be given.

How many tablets per order?
Answer by ChewyDec 24, 2019
The Capstar Flea Tablets for Cats 2-25 lbs, 6 count includes 6 tablets.

Is it normal for my cat to get dehydrated after consuming the pill?
Answer by ChewyAug 01, 2019
Being dehydrated typically isn't a normal side effect and we recommend you consult with a vet.

ReviewsWrite a Review

Rated 4.1066 out of 5 stars
872 Ratings
Would recommend to a friend

866 Customer Reviews

Always consult a veterinarian about your pet’s health needs. Customer reviews should not be used as medical advice.
Rated 5 out of 5 stars
By Monica on Sep 12, 2023

Flea pills

These worked great for my daughter in-law’s cats and I gave one to my cat also because I think my granddaughter brought some fleas to my apartment when she visited me too because my cat started scratching his hair out in clumps and I waited until I found out if they worked for her cats before I gave my cat one! And as soon as I gave my cat his ( he was mad at me for a whole day after I gave it to him too lol), but it didn’t take very long for it to work and he hasn’t scratched at all since he got his! So they are a great choice and it only took one pill for each of the cats too, so if needed they will be my first choice!

Rated 5 out of 5 stars
By Amy on Sep 13, 2023

50/5 Stars

Fantastic product! We've never had a bad case of fleas until this summer. I've been losing my marbles fighting with them. Capstar has made it so I'm winning that fight. One of my cats, Ghost, is severely allergic to flea bites and breaks out from them to the point he has to get steroid shots throughout the year. I can't tell you how grateful I am to have found this product, especially for my little allergic fuzzball.

Rated 5 out of 5 stars
By Sabrina on Sep 11, 2023

Superior Alternative to Topical Solutions

I'm really impressed with this product. The tablets are mess-free unlike the topical solutions I used to use. It's fast-acting and treats infestations quickly. The best part? It starts working in just 30 minutes and kills adult fleas. It's also suitable for both cats and kittens. I used to use Advantage II but applying it was a struggle with my fidgety cat. This is way easier. Just one treat and done. No more wrestling!

Rated 4 out of 5 stars
By Sarah on Sep 17, 2023

A Blessing for My Furry Friend

My feedback is really positive because this product has been quite a game changer. It's odor-free, which is nice, and the fact that it kills adult fleas is a great relief. It provides fast-acting relief and is very easy to administer. However, I wish it worked as effectively on larger cats, but other than that, it's an excellent product.

Rated 5 out of 5 stars
By Maggie on Aug 26, 2023

A Must-Have for Every Cat Owner

I would recommend this product to all cat owners out there who are tired of fighting flea infestations. From the moment I discovered CAPSTAR Flea Oral Treatment for Cats, my life has become so much easier. This little bundle of tablets has completely transformed the battle against fleas into a breeze. It's not just convenient and affordable, but it's also incredibly effective. Administering it to my fur babies is a piece of cake, and the best part is, no prescription is needed! I feel so reli...

Rated 4 out of 5 stars
By Amy on Aug 26, 2023

A Game-Changer for Flea Problems

This product is great! Let me tell you, dealing with fleas is no joke. I tried so many different treatments, but nothing seemed to work. That's when I stumbled upon Capstar Flea Oral Treatment for Cats. It's like a miracle in a tablet! The best part? It quickly treats infestations, so you don't have to wait around for days for it to take effect. My furry friend was flea-free in no time. However, I do wish the tablets were easier to swallow. But hey, nothing's perfect, right? Overall, I highly...

Rated 5 out of 5 stars
By Spencer on Aug 29, 2023

This product has been exactly what I needed

I had a flea infestation in my house after it was purchased and I was at my wit's end trying to find a solution. With a flea infested yard, on top of long lasting products, we needed something fast. That's when I came across this product and let me tell you, it has been a game-changer! The fast-acting relief it provides is simply amazing. Within moments of administering the mess-free tablets, I noticed a significant decrease in fleas on my cats.

Rated 2 out of 5 stars
By Cassandra on Sep 15, 2023

Made my cats sick

It did kill off some fleas, but it didn't help resolve my flea problem since Nexstar didn't work, which Chewy recommended after a different flea medicine didn't work. It also made all three of my cats vomit multiple times per day and have diarrhea. I have since switched to a prescription flea topical and am finally having success.

Rated 5 out of 5 stars
By Alexandria on Aug 23, 2023

First, I'd like to say that...

this product is a game-changer! From the moment I started using it on my cat, I noticed a remarkable difference. Not only is it affordable, but it's also incredibly fast-acting. Say goodbye to those pesky fleas in no time! And the convenience is unbeatable - just a simple tablet and you're done. It's truly effective and long-lasting, giving me peace of mind for a whole year. Plus, being from a trusted brand like Capstar, I know I can rely on its quality. I couldn't be happier with this purchase!

Rated 5 out of 5 stars
By Kacey on Aug 22, 2023

A Fantastic Purchase!

This is a really great purchase because it provides 12 tablets of fast-acting relief for your cat's flea problem. Say goodbye to those pesky fleas in no time! With this product, you can quickly treat infestations and start seeing results in just 30 minutes. It's easy to administer and can be given once a day, making it convenient for both you and your feline friend. Not to mention, it's suitable for cats and kittens, so no one in your fur family will miss out. Don't wait any longer to give yo...