CAPSTAR (Nitenpyram) Fast-Acting Oral Flea Treatment for Large Dogs (over 25 lbs), 6 Tablets, 57 mg
CAPSTAR (Nitenpyram) Fast-Acting Oral Flea Treatment for Large Dogs (over 25 lbs), 6 Tablets, 57 mg
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CAPSTAR (Nitenpyram) Fast-Acting Oral Flea Treatment for Large Dogs (over 25 lbs), 6 Tablets, 57 mg

4.2 stars out of 2132 reviews
(4.2)|
2,132 ratings

Key item features

  • CAPSTAR (nitenpyram) starts killing adult fleas in just 30 minutes.
  • With one dose of CAPSTAR, you can watch the dead fleas fall off your pet.
  • If your pet gets reinfested with fleas, simply give another dose as often as once a day.
  • CAPSTAR is a fast, effective flea treatment for dogs that is available without a prescription.
  • CAPSTAR Oral Flea Treatment for Large Dogs (57 mg) is safe for dogs and puppies 4 weeks and older that weigh 25.1-125 pounds.
Current price is $42.97$7.16/count
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CAPSTAR (Nitenpyram) Fast-Acting Oral Flea Treatment for Large Dogs (over 25 lbs), 6 Tablets, 57 mg
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Comparison Chart:
Animal typeDogCAPSTAR (Nitenpyram) Fast-Acting Oral Flea Treatment for Large Dogs (over 25 lbs), 6 Tablets, 57 mgDogPETARMOR CAPACTION Fast-Acting Oral Flea Treatment for Medium and Large DogsDogs and CatsVet's Best Flea and Tick Yard and Kennel Spray for Dogs - 32oz.DogADAMS Flea & Tick Carpet & Home Spray, 7-Month Flea Protection, Treats Up to 2K Sq Ft, 16 ozDogPet Life Unlimited Spray Flea & Tick Daily Treatment for Dogs, 10ozDogPETARMOR Plus for Large Dogs 45-88 lbs, Flea & Tick Prevention for Dogs, 3-Month Supply
Weight range25 lbs to 100+ lbsCAPSTAR (Nitenpyram) Fast-Acting Oral Flea Treatment for Large Dogs (over 25 lbs), 6 Tablets, 57 mg25.1 lb - 125 lbPETARMOR CAPACTION Fast-Acting Oral Flea Treatment for Medium and Large DogsUnder 500 lb.Vet's Best Flea and Tick Yard and Kennel Spray for Dogs - 32oz.-ADAMS Flea & Tick Carpet & Home Spray, 7-Month Flea Protection, Treats Up to 2K Sq Ft, 16 oz0 lb to 300 lbPet Life Unlimited Spray Flea & Tick Daily Treatment for Dogs, 10oz45-88 lbPETARMOR Plus for Large Dogs 45-88 lbs, Flea & Tick Prevention for Dogs, 3-Month Supply
Pet sizeLargeCAPSTAR (Nitenpyram) Fast-Acting Oral Flea Treatment for Large Dogs (over 25 lbs), 6 Tablets, 57 mgLargePETARMOR CAPACTION Fast-Acting Oral Flea Treatment for Medium and Large DogsMediumVet's Best Flea and Tick Yard and Kennel Spray for Dogs - 32oz.All SizesADAMS Flea & Tick Carpet & Home Spray, 7-Month Flea Protection, Treats Up to 2K Sq Ft, 16 ozLargePet Life Unlimited Spray Flea & Tick Daily Treatment for Dogs, 10ozLargePETARMOR Plus for Large Dogs 45-88 lbs, Flea & Tick Prevention for Dogs, 3-Month Supply
Minimum weight25 lbCAPSTAR (Nitenpyram) Fast-Acting Oral Flea Treatment for Large Dogs (over 25 lbs), 6 Tablets, 57 mg25.1 lbPETARMOR CAPACTION Fast-Acting Oral Flea Treatment for Medium and Large Dogs5 lbVet's Best Flea and Tick Yard and Kennel Spray for Dogs - 32oz.-ADAMS Flea & Tick Carpet & Home Spray, 7-Month Flea Protection, Treats Up to 2K Sq Ft, 16 oz1 ozPet Life Unlimited Spray Flea & Tick Daily Treatment for Dogs, 10oz45 lbPETARMOR Plus for Large Dogs 45-88 lbs, Flea & Tick Prevention for Dogs, 3-Month Supply
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Customer ratings & reviews

4.2 out of 5 stars
stars2,132 ratings947 reviews
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Reviews summary

Pros
  • : Does not require a doctor's prescription for purchase.
  • : Effective for puppies as young as 2lbs.
  • : Product starts working quickly.
  • : Reduces scratching behavior in pets.
  • : Repels and eliminates fleas, eggs, and ticks on dogs.
Neutral
  • : Offers competitive pricing, but can be expensive for some users.
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Showing 1-3 of 947 reviews

Jan 27, 2026
kim
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

AMAZING! Killed the fleas within 30-40 minutes

These pills started working very quickly. I started seeing dead fleas on my pets within 30 to 40 minutes. I waited for several hours to make sure all of the fleas got a good dose of the flea killer and then gave my pets a good washing to remove all the dead fleas. I did not see any live fleas on them after I treated them. I also sprayed all of areas where my pets hang out with a flea killer and washed all of their bedding. Note: The pills start killing fleas immediately but it only works for 24 hour. A few days later, I did see a couple of fleas on two of my dogs so I retreated them and I haven't seen any sense. They probably picked the fleas up when they went outside to potty. I would recommend this product.

Helpful?1EHEFVHJW8UZ111910896
Jan 28, 2026
Linda
Top Reviewer
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

fleas be gone!!

this is a lifesaver. the *super* fleas are responding to NOTHING!!! poor pup. this works like a charm. however i feel it's seriously overpriced at $42 for six tablets, when i can get it on ebay for $19. so i recommend it, just buy it elsewhere, as walmart is very much overpriced

Helpful?1EHEFVHJW8UZ111910896
Nov 5, 2025
ELIZABETH
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Capstar Works very well! along with a daily cleaning and laundry routine, it really helped to knock out the fleas on my dog as well as in my house quickly. it takes some time to fully get rid of the eggs that have fallen off of my dog, but there has not been a flea on him in over 8 days. I still see some fleas here and there, maybe one a day, But continuing my cleaning and laundry and vacuuming, as well as using a flea comb on my dog daily, everything has drastically improved. do not use this alone. you're going to need to get household sprays, yard sprays, if we come for your animal and be consistent in vacuuming sweeping and laundry every single day for weeks. it sucks, but it's worth it in the end.

Helpful?1EHEFVHJW8UZ111910896

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