At a Glance
Safe for use in dogs and cats
Prevents flea infestations for a full 30 days
Kills fleas within 30 minutes
Our regular price:
This item is on sale!
Comfortis is the first once-a-month chewable flea preventative approved by the FDA. Starting to work within just 30 minutes, this tasty, beef-flavored tablet provides the same protection a topical treatment does, with all the ease of giving your pet a treat. While other flea treatments may simply kill fleas on contact, Comfortis actively repels fleas for a full 30 days. Since there is no mess on their fur, there is no time period where they need to be kept away from children or other pets either. Safe for use on cats and dogs 14 weeks and up, start making flea medication a pleasant experience today, with Comfortis chewable tablets.
Side Effects and Warnings
Comfortis is associated most commonly with vomiting. Other possible reactions are depression, decreased appetite, diarrhea, itching, trembling, hypersalivation, and seizures. Comfortis may be used concurrently with heartworm prevention products, as they are directed.
Ask your veterinarian or consult with one of our pet care specialists at 1-800-844-1427.
This information is for informational purposes only and is not meant as a substitute for the professional advice of, or diagnosis or treatment by, your veterinarian. Always seek the advice of your veterinarian or other qualified professional with any questions you may have regarding a medical condition. Never disregard or delay seeking professional advice due to what you may have read on our website. Our medications are FDA approved and/or EPA regulated when and as required by law.
Dogs - 5-10 lbs. or Cats - 4-6 lbs., 6 months supply
Dogs - 10-20 lbs. or Cats - 6-12 lbs., 6 months supply
Dogs - 20-40 lbs. or Cats - 12-24 lbs., 6 months supply
Dogs - 40-60 lbs., 6 months supply
Dogs - 60-120 lbs., 6 months supply
Dogs - 3-5 lbs. or Small Cats, 2-4 lbs., 6 months supply
Store at room temperature.
Administer correct dose monthly, as prescribed by your veterinarian, with food, year-round without interruption. If you miss a dose, immediately administer Comfortis and resume regular monthly dosing.
Other Customers Also Bought for their Pet
- Kills fleas and ticks within 12 hours
- Kills flea eggs, pupae, larvae, and adults for 30 days
- Kills and protects against mosquitoes, which are the primary cause of heartworm
- Protect your dog from a variety of disease carrying ticks
- Kills fleas, and controls American Dog Tick infestations
- Once a month spot on to prevent internal and external parasites including heartworm
- Treats and controls ear mites and sarcoptic mange
- Kills any disease carrying tick within one day of application
- Prevents every stage of flea life (eggs, larvae, and pupae) from developing into adults
- Lasts for 30 days
Rated 4.8 out of 5 by 196
Rated 5 out of 5 by trayc14j This is the BEST flea & tick medicine on the market!!
I have livestock guardian dogs that live outside 100% of the time guarding our goat herd and this is by far isthe best flea & tick medicine I have ever used. One pill and the fleas are falling off within 30 minutes and within 24 hours, the dogs are not scratching or itching at all. Considering these dogs are not handled like the average dog, this has been the most convenient and effective flea & tick medicine I have ever found. I use it on my house dogs, cats and the LGD's.
GREAT product!! Easy to use!!
July 17, 2014
Rated 5 out of 5 by NorthTustinMom Works great and cheaper here than the vet
I have read of some pets having side effects from Comfortis, but our four dogs have never had any issues. I hated squeezing those little tubes of topical flea treatment, and the smell and greasiness that I didn't want on my furniture. I also like that Comfortis takes care of all the fleas fast.
July 15, 2014
Rated 5 out of 5 by SFanimallover Super results
One of our dogs is highly allergic to fleas and after trying many flea treatments, Comfortis was the only medication that eliminated the fleas and relieved his skin allergies.
July 3, 2014
Rated 5 out of 5 by Becca Works great
We recently moved to the beach in California from Colorado and my dog had an allergic reaction to the sand fleas immediately. I tried the Advantage but had no luck, so I took her to the veterinarian and he gave me one dose to try. I was worried about side effects but there haven't been any. It wasn't easy to get her to take it but the effectiveness was great and it lasted almost 2 months! You have to get tricky as they can smell it in there favorite food and will refuse it, but I always manage to find a way to get her to digest it. I am so happy to find something that works, I had to write a review. Highly recommend this miracle pill :)
June 27, 2014
Rated 5 out of 5 by Paul90503 Tip for dogs who don't want to take the Comfortis tablet
The flea medication works great but my Golden Retriever hates taking it. (I guess it tastes bad to him). Now I cut the tablet into four pieces, freeze them then cover them in peanut butter. That seems to work.
June 13, 2014
Rated 5 out of 5 by Domo3 Excellent Flea Product
I have used Advantix and Advantage for years with my senior dogs and they both worked well for some time. However, it recently in the past year stopped working and we had a terrible time with a major flea infestation. I tried switching to Frontline which worked a little better, but still, we had flea problems. So I reached out to our vet and he gave them Comfortis to use. It eradicated the flea issue immediately! I was amazed to find that just giving them their first dose, the fleas just disappeared from everywhere. I also like the fact that it is an oral tablet and not a topical. So no more worries about getting the topical on my skin or my children getting it on them from petting the dogs. I highly recommend this product!
May 30, 2014
Rated 5 out of 5 by TweedleDee This product is great becuse it is so easy to use
We have 3 Goldens and a Black Lab. They live in the pool, so topicals don't work for us. My vet introduced us to Comfortis. The dogs love it. It's their monthly "Special treat". We live in an area of Florida that is periodically inundated with ticks. While Comfortis is "off-label" for ticks, it seems to repel them as well.
May 29, 2014
Rated 5 out of 5
by abbaj9 Great product
My minpin's hair is so coarse , that liquid applications just don't work. This is the only product that rids her of fleas.
She thinks they are a treat and eagerly gobbles them up.
Couldn't get an easier.
Great price discount, just wish it could have been more. I do intend to use the rebate offered by the product for previous order.
May 29, 2014
Flea & Tick
Comfortis Flea Preventative
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.
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Comfortis Flea Preventative
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