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Capstar(nitenpyram) for Dogs Fast-Acting Oral Flea Treatment for Dogs 2-25 lbs, Vet-Recommended Medication Tablets Start Killing in 30 Minutes, 6 Doses

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Availability: Only 5 left in stock, order soon!
Fulfilled by Amazon

Arrives Saturday, Nov 8
Order within 11 hours and 20 minutes
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Style: 2-25 lbs


Size: 6 Count


Features

  • Fast-Acting Flea Treatment: CAPSTAR (nitenpyram) starts killing adult fleas in just 30 minutes
  • Tackle Flea Infestations Fast: With one dose of CAPSTAR, you can watch the dead fleas fall off your pet
  • Treat Reinfestations Fast: If your pet gets reinfested with fleas, simply give another dose as often as once a day
  • No Prescription Needed: Fast, effective flea treatment for dogs that's available over the counter
  • Intended Use: CAPSTAR Oral Flea Treatment for Small Dogs (57 mg) is safe for dogs and puppies 4 weeks and older that weigh 2-25 pounds

Description

Capstar (nitenpyram) is a fast-acting flea treatment tablet for use in dogs and cats that starts killing fleas in only 30 minutes. A single dose of Capstar kills 90% of adult fleas within 4 hours for dogs and 6 hours for cats, ridding your pet of these pesky parasites. Capstar is for dogs, puppies, cats, and kittens 2 pounds of body weight or greater and 4 weeks of age or older. Key FeaturesOne convenient tablet starts killing fleas within 30 minutes Treat flea infestations fast for every cat and dog in your home Kills adult fleas before they can lay eggs and start an infestation One tablet kills 90% of fleas in 4 hours for dogs and 6 hours for cats Safe to administer one tablet per day until flea infestation is resolved Capstar kills adult fleas that may cause flea allergy dermatitis. Capstar is for dogs, puppies, cats and kittens 2 pounds of body weight or greater and 4 weeks of age and older. Dosing Capstar is available in 2 dosages: Cats and dogs from 2 to 25 pounds (11.4 mg) Dogs from 25.1 - 125 pounds (57 mg) Administration To give Capstar tablets, place the oral tablet directly in your pet’s mouth or hide it in food. Use with Other Medications If your pet is currently receiving a monthly or longer- lasting flea preventative medication but still becomes infested with fleas, it is safe to administer Capstar to address a flea infestation. Capstar may also be used together with other products, including heartworm preventatives, corticosteroids, antibiotics, vaccines, deworming medications, and shampoos. Store at controlled room temperature, between 59 and 77 degrees F (15 - 25 degree C). Re-infestations Capstar kills adult fleas on dogs and cats, offering quick relief for your furry friend. While Capstar works fast to kill adult fleas and alleviate a current infestation, a subsequent preventative solution is recommended to prevent future re-infestations from any existing flea eggs and larvae in the environment. If you notice more fleas have found their way onto your dog or cat in the days following treatment, continue treating your dog or cat with Capstar with up to one dose per day. Important Safety Information Capstar is safe to use in puppies and kittens 4 weeks of age and older, and 2 pounds of body weight or greater. Always read, understand, and follow the label and use directions.

Brand: Capstar


Item Form: Tablets


Scent: Unscented


Item Weight: 11.4 Milligrams


Active Ingredients: Nitenpyram


Allergen Information: Gluten Free


Age Range (Description): All Life Stages


UPC:


Is Discontinued By Manufacturer ‏ : ‎ No


Item model number ‏ : ‎ CA4920Y07AMZ1


Date First Available ‏ : ‎ July 5, 2015


Manufacturer ‏ : ‎ SERCZ


Best Sellers Rank: #113 in Pet Supplies (See Top 100 in Pet Supplies) #1 in Dog Flea Pills


#1 in Dog Flea Pills:


Customer Reviews: 4.1 4.1 out of 5 stars 52,402 ratings


Manufacturer: SERCZ


Item model number: CA4920Y07AMZ1


Date First Available: July 5, 2015


Item Package Dimensions L x W x H: 4.96 x 3.03 x 0.87 inches


Item Dimensions LxWxH: 0.63 x 5.75 x 4.5 inches


Item Weight: 11.4 Milligrams


Brand Name: Capstar


Target Audience Keyword: dogs


Directions: CAPSTAR Tablets should be administered orally, at a minimum dosage rate of 1.0 mg/kg (0.45 mg/lb) body weight, according to the Recommended Dosage Schedule below. Weigh your pet prior to administration to ensure proper dosage. Do not administer to pets under 2 pounds. CAPSTAR may be used as needed, as often as once per day, whenever you see fleas on your pet.


Model Name: Capstar Flea Tablet for Dogs


Color: Blue


Size: 6 Count


Age Range Description: All Life Stages


Style: 2-25 lbs


Breed Recommendation: Small Dogs 2-25 lbs


Included Components: Capstar Flea Tablets (11.4 mg)


Specific Uses for Product: Parasites


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Nov 8

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Effective if you understand its purpose
Style: Over 25 lbs Size: 6 Count
I have used these for many years, even though I also use a monthly preventative. Fleas and ticks are ridiculous this year and these are great for the in-between times. Many of the negative reviewers don’t understand the purpose of this product. It is NOT a preventative. It doesn’t treat ticks. Capstar kills adult fleas only for just a short amount of time. Keep in mind that if your pet has fleas and is chewing, he is at risk for tapeworms as well. ... show more
Reviewed in the United States on August 12, 2025 by Feviegirl

  • Fast and Effective Flea Relief
Style: 2-25 lbs Size: 6 Count
I recently used Capstar for my two Yorkies (3 lbs and 6 lbs) after spotting signs of fleas, and I am extremely impressed with how well it worked. By the end of the day, both dogs were noticeably more comfortable, and the scratching had stopped. The product was easy to give, caused no side effects, and delivered exactly what it promised — fast relief from adult fleas. I understand it’s a short-term solution and doesn’t provide ongoing protection, but as an immediate “flea knockout,” it’s absolutely worth having on hand. If your pet needs quick relief, especially to stop an active flea problem before starting long-term prevention, Capstar is a lifesaver. I’ll definitely be keeping a box in my pet care kit from now on. ... show more
Reviewed in the United States on August 11, 2025 by Scott Baetz

  • Free killer
Style: 2-25 lbs Size: 6 Count
Does not kill flea eggs, but otherwise works great killing adult fleas
Reviewed in the United States on August 30, 2025 by Norm

  • Quick Relief for furry friends.
Style: Over 25 lbs Size: 6 Count
Been using for immediate assistance in getting rid of fleas. Helps to eliminate them quickly to start longer acting preventive care. Pups have not shown signs of illness anytime after taking medication. They don’t mind the taste and are willing to have the dosage without difficulty.
Reviewed in the United States on August 22, 2025 by Jennadev

  • Didn't work at all for Alaskan Malamutes
Style: Over 25 lbs Size: 6 Count
First, let me point out that CapStar is NOT a preventative! It is supposed to kill adult fleas on the dog but it doesn't prevent them from getting fleas again - not does it kill anything but adult fleas, which means you still need something (monthly topical or oral flea medicine) to kill the eggs and the larvae or those will obviously mature into adults and you and your pet are stuck in the vicious cycle. That being said, here is my first and only experience with CapStar. We have never had flea issues until this year. I have two Alaskan Malamutes - one 105 pound "short hair" and one 110 pound long hair. Clearly, they both have the Malamute thick double coat. We usually like K9 Advantix II for flea treatment/prevention. Early this summer, I bought the Amazon brand that has the same ingredients. As K9 Advantix Ii. It arrived with no expiration date and I'm not sure if that's the reason that it doesn't seem to work, that it's not the same formula or perhaps the fleas have become resistant... or it's just an especially overwhelming year for fleas. Either way, I thought by trying this first and THEN putting their prevention on within a day or two would work. I gave them each a CapStar pill, nervously watched for adverse reactions and thanked God they didn't seem to have any issues. It also didn't seem to help the flea situation - they continued scratching and biting as before. Because I didn't want to give them back to back, I waited for about 48 hours before giving another CapStar to each of them. Once again, no reaction but the scratching and chewing hasn't subsided at all nine hours later. In fact, I almost feel like both times, they are actually scratching more after the CapStar tablets?? It makes me wonder if it is actually not killing the fleas but just irritating them and making them more active and angry (or at least more hungry LOL). I really needed this to work and was hoping that in conjunction with a topical preventative, we would be able to both kill AND prevent reinfstation with a two prong attack. Sadly, we are just out more money, time and effort. I should mention that a long side this effort, I treated the bedrooms that have carpet (the rest of the house has hard floors and we have a no-knap, outdoor rug I'm the living room because it can be power washed) Anyway, I sprayed the Vet's Best Flea & Tick Home Spray on the carpet, mattresses and washed bedding & blankets. It's difficult to get every possible location that a flea could be hiding but I was fortunate to be able to see a flea and spray directly on it. The Vet's Best spray killed it in less than 10 seconds. It does say that you can apply it to your dog's coat and rub it in down to their skin. That sounded too unrealistic with their thick coats but because it is natural, smells really nice IMO and obviously works, I think I will still attempt that on most of their cost/body, add Diatomaceous Earth to the floors, dog beds, rugs, etc and THEN try reapplying topical prevention. I just have to decide of I am going to use some of the 8 tubes I have left of the Amazon brand or try something else - might pick up the Frontline Plus that's on sale at Costco tomorrow. ... show more
Reviewed in the United States on September 22, 2023 by Kimberly W. Kimberly W.

  • Ineffective
Style: Over 25 lbs Size: 12 Count
Used this product previously years ago and worked beautifully. We have had an issue not so much with an infestation but just can't seem to fully get rid of these fleas as the topical treatment we tried seemed to be ineffective. Maybe because it was less fleas it didn't seem to work this time around but administered the capstar to my pups and hours later still found live fleas. Nothing out there on the market seems to be effective anymore sadly. ... show more
Reviewed in the United States on August 30, 2025 by Nicole

  • YES YES YES!
Style: 2-25 lbs Size: 6 Count
I am in total shock at the results! We've been fighting fleas forever. Ive bought several products that just didnt work. This one did the trick. Its not preventative but it's a start. Not one live flea on my pup.
Reviewed in the United States on August 28, 2025 by Leah Blevins

  • Definitely worth the price
Style: Over 25 lbs Size: 6 Count
Works great! in a short amount of time I noticed the dead fleas. It's especially great if you have an infestation to get under control. I use these first and then I'll use a topical. I really appreciate the fact that none of my animals have had a side effect. It's expensive but definitely worth it
Reviewed in the United States on August 31, 2025 by LH

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