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.
Rated 4.8 out of 5 by 182
Rated 4 out of 5 by Dar12 Topical Alternative
I have been using Comfortis for years. It is very effective against fleas, and I like it because I'm not putting chemicals on my dog. Also I live with a cat and some of the topical flea products for dogs are not good for kitties. Comfortis doesn't do much for ticks, but my dog doesn't really go anywhere where he would pick up ticks. Also he doesn't really like the tablets, I have to hide them well in peanut butter.
March 5, 2014
Rated 4 out of 5 by clydesmom Effective but smells really bad
We live in Florida - lots of fleas and ticks etc. Our dog swims every day so a topical treatment won't work for him. Since it's taken orally, Comfortis is one of the few things that works and it is recommended by our vet. The problem is that it is really tough to get our dog to eat it because it absolutely reeks like rotten eggs! We have tried smothering it in peanut butter and this succeeded once. Now our guy won't eat peanut butter. Lately we have been hiding it in a really strong, salty cheese and hope that he swallows it whole. If he gets a whiff of the pill, it's over and we really can't afford to waste these as they are so expensive. The manufacturer labels these as flavored and chewable but that's just not so in our experience.
February 28, 2014
Rated 5 out of 5 by thesneak Very effective
This product works very well. Will protect my dog for a long time
December 24, 2013
Rated 4 out of 5 by BushBabe Tastes awful but works well.
My dog does not like the flavor at all. I have to find new ways to disguise the pill each time, or he will spit it out. Once I get him to swallow it, the result is amazing. No Fleas!! It even helps to control the flea problem in the house.
December 20, 2013
Rated 5 out of 5 by DQofNC Excellent product
When our dog had fleas and we couldn't get rid of them, our vet recommended Comfortis. It is expensive but it does the job well.
December 2, 2013
Rated 5 out of 5 by sunchaser This product takes care of the pet.
Using comfortis, completely takes care of any fleas any time of the year. Our dog is outside and inside. No itching,
doesn't make him sick. Other products we have used have almost paralyzed him and didn't get rid of the fleas.
Very happy with Comfortis , except for the price.
November 26, 2013
Rated 4 out of 5 by Sallie So Far this is the only Product that has worked
It has only been two weeks since the product was given to my two cats. I had one cat that continually had fleas. Frontline, Revolution and other topical products did not work. The pills were huge and I did not think I would be able to get my finicky cats to eat them but after breaking them up to small pieces they ate them down like snacks.
Still waiting to see if they continue to do the job but so far they seem to be working with no side effects noticed.
November 23, 2013
Rated 5 out of 5
by FreddyV This product works
We have 3 dogs and though we never had anything like an infestation occasionally the dogs would get fleas.
We tried every spot on product out there but none seemed to work. Comfortis wiped them out in a day.
We live in the country where we sometimes have to "rescue" an abandoned dog.
There was one that was completely covered in fleas and 1 pill cleared them out in 1 day.
October 24, 2013
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.
In stock! Order now!
Comfortis Flea Preventative
To get PetPlus no markup pricing on this item, please upgrade to the Treatment Plan, which includes prescriptions, vitamins and more!
Would you like to upgrade?
Add at Regular Price