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Comfortis Flea Preventative

Product Reviews

Comfortis is the first beef-flavored chewable that both kills fleas and prevents infestations in your dog or cat for a full 30 days. This product is safe for puppies and kittens as young as 14 weeks. More »

$98.59 - $117.59
Available Options:
  • Dogs - 5-10 lbs. or Cats - 4-6 lbs., 6 months supply Add to Cart
  • Dogs - 10-20 lbs. or Cats - 6-12 lbs., 6 months supply Add to Cart
  • Dogs - 20-40 lbs. or Cats - 12-24 lbs., 6 months supply Add to Cart
  • Dogs - 40-60 lbs., 6 months supply Add to Cart
  • Dogs - 60-120 lbs., 6 months supply Add to Cart
  • Dogs - 3-5 lbs. or Small Cats, 2-4 lbs., 6 months supply Add to Cart
Rated 4.8 out of 5 by 198 reviewers.
Rated 5 out of 5 awesome WOW...I can't believe I wasted so much money in other stuff that didn't work. I was a little skeptical at first but wow in between 4 hours I found dead fleas on my dog legs and not sign of fleas in the house. Love this product. My only complain is that this product doesn't have the promotion it deserve. Try it a works. September 15, 2010
Rated 4 out of 5 Works great so far, but did have side effect I live in the Alabama heat and the fleas love it (and my dogs). I have two boxers and have tried topical treatmets multiple baths, etc with no luck.. Just got Comfortis a couple days ago and since then I have not seen one flea alive! just lots of dead ones!! I love that... what I didnt like was the lethargy :( My smaller boxer was extremely lethargic after taking his pill, was just totally out of it.. I was a bit scared but saw that this was a noted side effect listed in the instructions so didnt panic.. After a good 24 hours and lots of sleep, he is back to normal! September 9, 2010
Rated 5 out of 5 Tried Everything! Starting last summer our dogs were getting infested, Frontline Plus, Advantix you name it nothing worked. I tried putting stuff in the yard, I tried carpet powders , everything! My mother said they just got Comfortis for their dogs. She got me 1 pill each for our 2 dogs (Yorkie and Pek/Chiahuahua). I fed it to them no problems and within 2 hours there wasn't a single flea on them!! I would give the yorkie a bath and 50+ fleas would always be eating him alive and within 2 hours he'd be infested again! He has been flea free for over 3 weeks. I am completely amazed by this product and is a saving grace. It was embarrassing to have people over because fleas would be everywhere. I highly recommend this and I did watch the dogs for reactions and there wasn't any. As with Biospot, I used that and it caused both my dogs to go into seizures and they had to be rushed to the emergency vet. I highly recommend this product! September 5, 2010
Rated 5 out of 5 Finally something that works This is only flea med that we foun d worked on my Shih tzu. My vet recommended it when it first came out. Before then All other meds would not help but maybe a week. I guess could not get through fur well. Started using this and no fleas. My furbaby is allergic to fleas and gets sick when has them. So we were happy to find this. It is cheaper at my vet also. August 23, 2010
Rated 5 out of 5 Tried everything available for fleas before finding comfortis. This product is GREAT! We haven't seen any fleas for at least two years now. Dogs not scratching. If you have dogs and love them please give them relief from those horrible fleas with Comfortis. They'll be happy and you will too. It's worth every penny. August 8, 2010
Rated 5 out of 5 Good product but cheaper through my vet - I've been using Comfortis for my 17 lb. Jack Russel for a year and it does great. Wanted to begin ordering through PetCare for home delivery but found it to be cheaper through my vet ($73.50). The PetCare price of Heartguard is the same as through my vet so I find absolutely no savings through PetCare. July 21, 2010
Rated 5 out of 5 Works but Program Does too and is cheaper! I had ben using Program for 6 years and absolutely loved it. I was told by my vet this year that they were no longer carrying it. They gave me Comfortis instead. I have blue heelers and have been very pleased with Comfortis however once I figured out that I can buy Program online; I have chose to go back to Program and save atleast $30.00 right off the top. I am very pleased and so is my bank account! July 13, 2010
Rated 5 out of 5 IT WORKS !!!!!! Spent so much money on products that don't wrok. My 16 lb. mutt is alergic to fleas and scratched herself raw, with bald spots that bleed. Within 2 days of using COMFORTIS, no fleas, no itching and Molly is now a HAPPY dog! So am I..... July 12, 2010
Rated 5 out of 5 Stupendously stunning!!! After having fought with fleas from the day my husband brought her home almost four years ago and hearing that my sister-in-law who'd had her prior to us having the same problem, our little Shih-tzu/Maltese mix, who is almost completely white which fleas LOVE, is basking in sweet relief. We've tried Advantage, Advantix, Frontline, spraying the yard, getting rid of the carpet, baths at least once a week, Raid, bombing the house, etc., and nothing would work! We were getting ready to try Revolution, but the vet recommended Comfortis since they carry it and not Revolution. Turns out that our sweet little dog rubs the topicals off, but that's not the case with Comfortis! I had no problem getting her to take it, and she didn't seem to have any side effects other than dead and dying fleas falling off her. The other dogs in our household seem to be okay with the topicals, but I might switch to Comfortis for them as well since it was less expensive with our vet than the topicals are... This stuff is absolutely amazing! July 7, 2010
Rated 5 out of 5 Comfortis = comfort at last! We had been using Frontline which was not working at all. We thought maybe the fleas were just really bad this year. After calling our vet we found out that Frontline has been found defective this year!! She suggested Comforits and said it should take care of the problem. Sure enough, Gracie gobbled the pill right up with her supper and dead fleas were literally falling off of her within 1/2 an hour! Now she can sleep at night and so can we!! July 3, 2010
Rated 5 out of 5 Comfortis is the ONLY way to go! Hi! My name is Joe-Joe (named after the one and only: Joey Tribiani from 'Friends'). I'm a fun lovin' Corgie who lives in Florida where all fleas come to vacation! I WAS an advid Frontline Plus user for years until the fleas became smarter than the treatment. I've been using Comfortis for a couple of years now and I won't use anything else - ya know what I'm say'n? My people are happier and my home is flea free! I encourage the makers of Comfortis to add a treatment for ticks to their product. That would make Comfortis #1 on the market and #1 in my heart! ~ "Hey, How you doin'?" ~ "Get your Comfortis TODAY!" July 3, 2010
Rated 5 out of 5 Skeptical but convinced My Shih-Tzu, Mr Chubs, has been living in "TERROR" due to the fleas we have in Alabama. Advantage Multi, Frontline, sprays, vinegar spray, garlic, etc... he's continued to be miserable. They I rescued a Pommeranian and she doesn't itch and carry on from the fleas but she had them ALL over her and so I found out from coworkers about comfortis... now the pommeranian has the kind of fleas I like to see... dead fleas! I think they are still itchy scratching from residual effects of all their bites but I can tell when the fleas are dead that's a new and good thing to find on them. Thanks Comfortis! Tell the vets so they quit recommending things that DON'T WORK!!! Jennifer July 1, 2010
Rated 5 out of 5 NO FLEAS Love this product, NO FLEAS....I highly recommend this product June 28, 2010
Rated 5 out of 5 High Cost Surprised to see the price of $92+ for 6 month supply. Not cheaper than at my vet's--paid &79.79 for 6 month supply. June 20, 2010
Rated 5 out of 5 COMFORTIS IS THE ONLY ONE FOR US. I have two border collies that live in the house with us since six week puppies. now three years old, have never found a flee or tick on them. wonderful stuff. highly recommend. June 19, 2010
Rated 5 out of 5 It works!!! Last summer we spent hundreds of dollars trying natural ways to kill our flea problems. Both of our dogs, a Rat terrier and a JRT, were beyond miserable. My aunt gave me her comfortis and NO FLEAS at all in less than two days. It is absolutely amazing! I too wish they had a tick pill! But for now, I will never use another brand... Comfortis all the way!!! June 19, 2010
Rated 5 out of 5 Never was a Flea with Confortis I have never seen a flea on my dog until I tried Frontline - never with Confortis June 18, 2010
Rated 5 out of 5 Saved!! My golden retriever is allergic to fleas and we live in humid Florida with fleas love. She irritated her skin from itching and biting herself that the vet had to shave part of her fur and treat it. She would scratch so much, she couldn't sleep well at night. After using comfortis, she's so much happier and not scratching!! This medication saved my dogs irritation!! June 15, 2010
Rated 2 out of 5 didn't work for us... We tried this product on our little Basenji and the flea problem seemed to get worse instead of better... June 12, 2010
Rated 5 out of 5 Great Product!! I actually tell everyone I meet that is having flea problems to use this product--highly recommend.Our neighbors dog was covered with fleas and I even shared one of the pills with her until she could receive her order. I only gave our gang one tablet last year and we did not have any more problems with fleas. Ticks became our problem, would love to see something in the Comfortis to control ticks. June 11, 2010
Rated 5 out of 5 No More Fleas! Product is outstanding, worth every penny. Nothing else worked, but with Comfortis, the fleas, scratching dissapeared. This stuff works! May 27, 2010
Rated 5 out of 5 FTONT LINE NEEDS TO GET OUT OF LINE I would never use another flea product on my dogs ,comfortis is the best May 26, 2010
Rated 5 out of 5 Fleas After years of wasting money on Frontline and a constant battle against fleas. I tried comfortis. INSTANT SUCCESS. Within a few hours. I have three Golden's, Jack Russell, Heinz 97 Hybrid and a cat. I hate to beat up on Frontline but it is worthless if you have many pets. Comfortis ended years of flea problems. May 25, 2010
Rated 5 out of 5 Been going through Flea hell for a month now- spent about $200 on various products (Raid sent me a Been going through Flea hell for a month now- spent about $200 on various products (Raid sent me a refund because the sprays didn't eradicate fleas in the house; Merial- makers of Frontline, with Good Housekeeping seal of approval, promises Money back if not satisified- they lie- you have to go through so many hoops, prove you've used the product for more than 90 days and then they will refund only one month). My dogs were freaking miserable and I felt guilty, overwhelmed and totally stumped! BFF told me about Comfortis- she just heard about it from our vet- More expensive, initially, yeah- but it WORKS!! You can't beat that. Nothing's more expensive than buying products which don't work. Been 24 hours- still seeing some dying flea activity (residual from the yard). Another client at the Vet's said not to bother paying for yard poisons, let the Comfortis do it's job. So far, so great! May 5, 2010
Rated 5 out of 5 Finally !!!! The "insecticides" in almost all of the major flea-control products are toxic & very-dangerous. I have tried them all, including sprays, topicals, holistic herbs, garlic, brewers-yeast, etc., each having, frightening, reactive side-effects, as well as "not-working" !!! Comfortis is "safe" and it "works" FDA & EPA approved... May 1, 2010
Rated 5 out of 5 Works Great! I have a 7 lb. Chorkie that is highly allergic to fleas. We fought for 4 years the constant scratching, itching, loss of hair, crusty, oily, and scaley skin, along with terrible odor. We had tried everything and finally after numerous topical meds and 4 vets later one suggested Comfortis and it has proved to be a miracle cure. We noticed a difference in just days! My dog is now able to sleep at night instead of scratching all night long and her coat looks beautiful. We live in southern Illinois and use this all year long on her with great results. Have always bought from the vet though this company is comparable in price. Great product if you are having trouble with fleas you should give it a try! April 30, 2010
Rated 5 out of 5 Love comfortis!!!!! Love this stuff....no fleas whatsoever....topical treatments last only 3 weeks on my dog.... April 29, 2010
Rated 5 out of 5 This stuff really works. Hi, We have a 1 year old yellow labrador, and this stuff really works, we were giving him 4 baths a week with the flea shampoo, (that comes along with the horrible smell) then the horrible flea thing on his back. (then you couldn't pet the dog for days). I felt so sorry for him. Then my vet recommened this Comforits and it works GREAT. No more flea baths (just 1 a month) no more medicine on his back, just 1 chewable after he eats and that's it. AND TRUST ME THE FLEAS JUST JUMP OFF.(I CALL IT "ABANDONING SHIP"AND THEY ARE DEAD, AND THERE ARE NO MORE LIL BLACK EGGS HANGING AROUND ANYMORE. THANK YOU COMFORITIS FOR MAKING MY LIFE AND MY DOGS LIFE GREAT...... April 27, 2010
Rated 5 out of 5 My bichon frise loves comfortis We moved from Kansas to the Costal Bend of Texas and I wasn't expecting fleas year round. But yep, they were here. Tried everything on the market. My groomer recommended comfortis and it works. Now my little bichon is a happy camper. We still spray the yard (since it's nothing but sand down here). This is a great product. April 26, 2010
Rated 5 out of 5 No worries I was a little afraid of giving my dog ANOTHER pill on top of his heartworm, but it worked fast and effectively.. we live out in the country and with the topical it would work for like 2 weeks maybe then we would start seeing fleas, about 24 hours after we gave him this pill there were no fleas to be found and we havent seen any since! thanks alot!! April 15, 2010
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