CAPSTAR Flea Oral Treatment for Dogs, over 25 lbs, 12 Tablets -

Capstar Flea Oral Treatment for Dogs, over 25 lbs

By Capstar
Rated 3.8279 out of 5 stars
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$64.99Chewy Price
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About This Item


  • Kills adult fleas and is indicated for the treatment of flea infestations on dogs, weighing 25.1-125 pounds and 4 weeks of age and older. For dogs, puppies, cats and kittens 2-25 pounds of body weight, use Capstar 11.4 mg tablets.
  • Use when pets are likely to be exposed to fleas, such as in dog parks, at shows, or other areas.
  • Safe to give as often as once daily if re-infestation occurs.
  • Kills adult fleas on your dog within 4 hours of administration.
  • Safe for pregnant or nursing dogs.

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

Important Information

Fleas rise to the top of your pet's coat as they die, so consider it a triumph if you start seeing more fleas at first, after treating your pet. If you’re still seeing fleas after application, it may be because your pet has picked up new fleas from the environment, which may include other pets, surfaces and outdoor areas. It may take up to 30 days to break the entire flea life cycle. Additionally, you should also treat sources of new fleas (i.e., carpet, yard, etc.) to ensure complete flea control.

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Breed SizeMedium Breeds, Large BreedsExtra Small Breeds, Small BreedsExtra Small Breeds, Small BreedsMedium Breeds, Large Breeds, Giant Breeds
LifestageAdult, PuppyAdultAdult, Puppy, SeniorAdult, Puppy
Top IngredientsImidacloprid.Imidacloprid.

Questions & Answers

23 Customer Questions

Why does this say "Capstar Flea & Tick Oral Treatment" when it doesn't work for ticks?
Answer by JoniADec 10, 2022
I don t see anywhere that it says flea AND tick treatment. I see only flea treatment. Again, comprehension,...

Will Capstar help control ticks
Answer by ChewyJan 26, 2018
This product does not repel or kill ticks.

Answer by ChewyAug 30, 2017
The active ingredient in this tablet is 57 milligrams of Nitenpyram.

Can I give my dogs a bath after giving them this medicine
Answer by ChewyNov 05, 2018
You can give your dog a bath while using these tablets.

ReviewsWrite a Review

Rated 3.8279 out of 5 stars
616 Reviews
Would recommend to a friend

616 Customer Reviews

Filter by reviews that mention

Rated 5 out of 5 stars
By Lennon on Dec 10, 2022

Highly recommend

Definitely recommend this. Tried a few different things and nothing worked until this. Saw a difference the next day but still have them the 3 doses 3 days in a row and it definitely worked.

Rated 3 out of 5 stars
By FJBanks on Nov 22, 2022

CAPSTAR (nitenpyram)

It's okay for a quick fix. Needed to use one daily to be totally effective and that can get expensive. Purchased a 6month product instead.

Rated 1 out of 5 stars
By Deepmc on Sep 18, 2022

Faulty product

I treated my animals with capstar and did the regular dosage the day that I received it. Two days later I found a couple of fleas so I treated them again. I have treated once more in hopes that the Capstar will work. I have not had a problem in the past with Capstar, but this package seems faulty.

Rated 1 out of 5 stars
By am13 on Aug 11, 2022

didn’t last long

After reading the reviews, it would either eve good or bad. For us, it barely worked. We have a lot of sand in our driveway that we walk when walking our dog, maybe sand fleas are harder to keep off, idk. I know I gave my dog a pill, the next day he seemed to scratch less but by day 4 he was right back at scratching and biting. I could see live fleas crawling through his fur as well. So back on the hunt for something for him.

Rated 5 out of 5 stars
By Colleen on Sep 27, 2022

Capstar flea for dogs over 25#

Works as described. Administered to dogs & dead fleas dropped off them in about 30min or less. Very happy. Not for long term control, tho.

Rated 1 out of 5 stars
By Emily on Sep 27, 2022

Not killing fleas!

The medicine does not seem to be working. We have used Nexguard and it was very effective. Not sure why we switched??

Rated 4 out of 5 stars
By Boxermom on Jul 10, 2022

Worked Great

I have 3 Boxers and a Shihtzu and bought this product to try because of the cost from the vet. It has worked great for all 4 of my dogs for well over a year now. I bathed my dogs then gave them the recommended dose. Gave them another dose a couple of days later bathed them again and have not had a problem with fleas since.

Rated 1 out of 5 stars
By Cathy on Aug 14, 2022

Capstar did not work for my dog.

I purchased two different boxes since I have two dogs- a Rottweiler and a rat terrier. After bathing each dog, I gave them one dose for six days. They still have fleas.

Rated 5 out of 5 stars
By Gldnz4me on Jun 23, 2022

Surprisingly Good

This product does work but if your flea infestation is bad you have to give a pill every 1-2 days and continue until your flea problem is under control. Since it won’t kill eggs or larvae you have to be consistent in administering it. It states that it is only effect for 24-48 hours. I use it as a preventative measure and so far it works really well. It’s also the least expensive alternative so far.

Rated 1 out of 5 stars
By sharie on Aug 6, 2022

Very disappointed

Bought these in the small dog and large dog size. I'm very disappointed they only worked for about 5 days. My poor dogs. Definitely looking for a different flea treatment.