PetArmor CAPACTION (nitenpyram) Oral Flea Treatment for Dogs, Fast Acting Tablets Start Killing Fleas in 30 Minutes, Dogs 2-25 lbs, 6 Doses
$27.99
Price: $27.99
(as of Oct 17, 2025 11:04:58 UTC – Details)
How quickly does CAPACTION dog flea treatment work? Start killing your dog’s fleas in the time it takes to watch one episode of your favorite sitcom. That’s right – CAPACTION Oral Flea Treatment starts its job in thirty minutes, providing your dog with immediate relief. Almost all the adult fleas on your dog should be gone within four hours! CAPACTION is a pet flea medicine that can be used once a day if need be, although a single dose should do an effective job.
Product Dimensions : 0.63 x 5.5 x 6 inches; 0.3 ounces
Item model number : 711650110006
Date First Available : August 19, 2018
Manufacturer : Vetio
ASIN : B07GN2V7LR
Best Sellers Rank: #159 in Pet Supplies (See Top 100 in Pet Supplies) #2 in Dog Flea Pills
Customer Reviews: 4.1 4.1 out of 5 stars 22,308 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); } }); });
Powerful Ingredients: CAPACTION flea tablets contain the same active ingredients as CAPSTAR (nitenpyram)
Quick and Easy: This flea and tick pill kills fleas fast: begins working within 30 minutes
Proven Results: CAPACTION achieves greater than 90% effectiveness against adult fleas on dogs within 4 hours
Easy-to-Use: CAPACTION is provided in a convenient oral tablet. No prescription needed
Intended Use: CAPACTION oral flea tablets are intended for use on dogs weighing 2 to 25 pounds
Customers say
Customers find the flea treatment easy to administer and appreciate its effectiveness, noting it starts killing fleas within 30 minutes and keeps pets comfortable. The product receives positive feedback for its quality, with one customer noting it’s better than vet office alternatives. However, experiences with flea control and longevity are mixed – while some report fleas gone within 48 hours and lasting up to 24 hours, others say it doesn’t work at all and only lasts for 12 hours. Value for money and itch relief also receive mixed reviews, with some finding it a great value while others say it’s not worth the cost, and while some report itch relief, others say their pets continue to scratch.
7 reviews for PetArmor CAPACTION (nitenpyram) Oral Flea Treatment for Dogs, Fast Acting Tablets Start Killing Fleas in 30 Minutes, Dogs 2-25 lbs, 6 Doses
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Monique –
Works best in combination with monthly flea treatment
Fast acting and Great on flea Infestation. However, it only works on adult fleas and doesn’t kill the eggs. This is what you need to know to be satisfied with this product.I use this in conjunction with monthly flea treatment. I first give to my dog, with 30 min to 1 hr. Bath dog in fea shampoo. Treat yard, patio, wash dog bedding and spray with flea spray after the drying cycle. I also spray down the house. Yes you need to do all this especially right before flea season.Some have commented the their dog continues to scratch however you need to understand that they will because they have flea bites all over their body. Think of it like this, getting bit by a mosquito and you scratch and scratch. The saliva of the fleas and or mosquitoes causes you to itch until it heals or you put some kind of soothing ointment, lotion or medication on it.Therefore, I will bath my dog once more in an oatmeal shampoo with in the week. Then I will give another pill 48hrs later then save the rest just in case there is another infestation.This product work well and great in combination of monthly flea treatment that also kills eggs and treat for mosquitoes
Mam –
This stuff is the only thing that gets rid of fleas in the country
I have two small house dogs, both around 12 lbs, and this is the only thing that gets rid of fleas. For others out there who think this is a bit expensive, as I do, here’s my solution to that. I buy the large dog package. I take each pill and cut it into 4 pieces, first in half, then each half in half. I give a quarter to each dog every 36 hours. From my experience, I can go a bit longer than 24 hours with it, but not a full 48. The fleas will be back. So 8pm on Tuesday, then 8 am on Thursday. I hope that helps people on here. Fleas are something I absolutely can’t stand, and this does the trick. The package lasts me around 15 days. I didn’t figure it out exactly, but more that 12 days by giving it every 36 hours. Oh, and on a side note, I cut each pill into 6 pieces for cats. 6 cats a day or 3 every 15ish days, you get the idea. This is more expensive than the liquid on the neck, but those just do not work for me.*One thing to add*if you wait longer than 36 hours to give the pill, I’ve noticed that for the first half hour or so, the fleas seem to go crazy and bite the dogs more. That means it working. There are people on here that say it doesn’t work, but this has been the only thing I can think of that they are misinterpreting. It will work. Then just stay on top of it, and you won’t have the episodes of crazy itching.
Amazon Customer –
This is a must-have for any dog owner who needs quick
A Fast-Acting Lifesaver for Immediate Flea Relief!I highly recommend PetArmor CAPACTION (nitenpyram) Oral Flea Treatment for Dogs, Dogs Over 25 lbs (6 Doses). This product is a fantastic solution for dealing with sudden, heavy flea infestations.Speed and Effectiveness (5/5 Stars)The “Fast-Acting” claim is absolutely true. Within 30 to 45 minutes of giving my dog the tablet, the fleas started dropping off him like rain. Itâs quite satisfying to see them die that quickly! The immediate relief this product provides is unmatched. It effectively kills the adult fleas currently on your dog, offering instant comfort.Ease of Use (5/5 Stars)The tablets are small and easy to administer. My dog, who is usually picky, took the pill wrapped in a piece of cheese without any issue. Having six doses is very convenient, as it allows you to treat subsequent flare-ups or use it for multiple pets (if they meet the weight requirement).Important Note (What it does NOT do)It is crucial to understand that CAPACTION is an “instant kill” product. It only kills the adult fleas that are on your dog at the time of treatment. It does not have any residual effect. This means it won’t prevent new fleas from jumping onto your dog from the environment (carpet, bedding, yard).For long-term protection, you must pair this with a monthly preventative treatment (like a collar, topical spot-on, or another oral medication).Final VerdictThis is a must-have for any dog owner who needs quick, immediate relief from a flea emergency. It’s a powerful tool to break the life cycle of fleas fast. Just remember to follow up with a long-term preventative.Overall Rating: 5 out of 5 stars for its purpose (immediate knockdown).
GD –
Best OTC option
This pill option works the best. I do feel the fleas die the quickest with this pill. My dog came home from the breeder with fleas and after many dollars spent, my poor dogs itching and my family getting their legs eaten off, we are nearly flea free.
MW –
Not as fast or effective as I expected
Did not work as quickly or as effectively as I expected. It took days to notice any difference + the infestation never completely went away until we tried other means. This was for our Australian Shepherd that was only mildly affected by fleas. We were trying to clear them out before we applied the topical treatment. This product never completely eliminated the fleas but it did make a slight difference. If it was cheaper I might give it four stars. For the cost. It’s not really worth it. A few bucks more and you can get a better brand that’s more effective.
Leah –
Hide them in cheese and use a few days in a row. They really work well!
The only thing that seems to work to kill fleas. I broke the pills in half and gave them to my 8 pound dogs. I had to do this a few days in a row. But when I left and came back from my camping trip a few days later, there seems to be no sign of the fleas on either dog. This was combined with flea baths on the same days, but from experience, the fleas came back right after the baths. So, I’d highly recommend using flea baths in conjunction with giving them these pills. Also, I had to put the pills in between little slices of cheese, which they swallowed whole. I tried shoving the pills in their mouths, but they refused to swallow them without cheese.
Anon –
Great product at a great price
Works great for my Chiuahaha / Dauschsand mix that is about 12 pounds. Works just as well as other brands, but noticeably cheaper. This is my first choice when it comes to getting rid of fleas. At most, I use it about once a week as needed.