CAPSTAR Oral Flea Treatment for Dogs, Fast Acting Tablets Start Killing Fleas in 30 Minutes, Medium & Large Dogs (Over 25 lbs), 6 Doses
$39.97
Price: $39.97
(as of Sep 13, 2025 09:35:16 UTC – Details)
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. 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.
Is Discontinued By Manufacturer : No
Product Dimensions : 0.63 x 5.75 x 4.5 inches; 0.1 ounces
Item model number : CA4925Y07AMZ1
Date First Available : July 25, 2014
Manufacturer : Vetio Animal Health
ASIN : B07PWB9J43
Best Sellers Rank: #128 in Pet Supplies (See Top 100 in Pet Supplies) #1 in Dog Flea Pills
Customer Reviews: 4.1 4.1 out of 5 stars 52,573 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
Fast-Acting Flea Treatment: Capstar (nitenpyram) starts eliminating 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 that’s available over the counter
Intended Use: 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
Customers say
Customers find the flea treatment easy to administer and appreciate its fast-acting properties, starting to kill fleas within 30 minutes. The product receives positive feedback for its quality and effectiveness, though experiences with flea control are mixed – while some report immediate flea elimination, others say it doesn’t work at all. Customers disagree on the value for money, with some considering it worth the price while others find it overpriced. The product’s longevity receives criticism, with customers noting it only lasts for a day or two, and while some say it helps with itching, others report significant scratching and discomfort.
8 reviews for CAPSTAR Oral Flea Treatment for Dogs, Fast Acting Tablets Start Killing Fleas in 30 Minutes, Medium & Large Dogs (Over 25 lbs), 6 Doses
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Scott Baetz –
Fast and Effective Flea Relief
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.
LH –
Definitely worth the price
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
Ray –
Really works!!
After a ton of research, capstar has been one of the best items I’ve used to get rid of fleas within the hour. It truly does work and it didn’t give any reactions to my dogs. About a few hours after we gave the medicine to them, we bathed them with flea and tick shampoo and we haven’t seen any fleas since then! Of course they are on a preventative but somehow they got active fleas. BUT this capstar was a lifesaver.
Miguel Rodriguez –
Lasted a few hours
It only works for a few hours
Feviegirl –
Effective if you understand its purpose
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.
Robert P –
Pup approved
Amazing items worked on my 2 dogs 90lb Husky and 40lb Pomsky. Very easy to get them to take I just open mouth put into side and hold closed. They take it without an issues. You’ll notice it working within a half hour the itch stops.We gave them a bath the following day and reused again because thats our pattern and it works.Fast shippingAmazing priceProduct works great5 🐾🐾🐾🐾🐾
Mia McCoy –
Not sure if it works because I still see fleas.
I’m giving this purchase of three star the quantity was good but they didn’t work as well as I thought they would. Because my dogs still had fleas. For the first few days after they would take the medication I didn’t see them scratching at all but with two weeks they were scratching and I started seeing fleas again I’m not sure if there’s something else I need to do. I wound up giving them the second dose early thinking maybe it just needs to get in their system better I don’t know yet if that’s the issue or if the medication is an as strong as they claim.
Dwayne S. –
Capstar
Didn’t work as good as they advertised it to