At a Glance
Safe for use in dogs and cats
Prevents flea infestations for a full 30 days
Kills fleas within 30 minutes
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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 185
Rated 5 out of 5 by LarryLenz Excellent coverage for flee protection.
Provides a 30 day flee protection though no coverage for Tics.
March 24, 2014
Rated 5 out of 5 by Kimberly1129 Love this product!!!
I have tried everything on the market for my dog an this is the only thing that has worked wonderfully. My dog is allergic to fleas and breaks out really bad when bitten by one and he will loose patches of hair its awful.... But when I started him on this pill he is a new dog! No more issues with his skin and no more fleas! We couldn't be happier to have found this product. I thank you and my dog Bear thanks you! Seriously if your on the fence about trying this don't hesitate Get It because it works. I'm not one to recommend stuff, but I had to on this. Sincerely Happy Customer =) p.s. Bear eats it like a treat, no problems giving it to him ~
March 22, 2014
Rated 5 out of 5 by FloFlo Keeps fleas away!
I have to grind this pill up, combine it with maple syrup, put it into a syringe and then shoot it down the throat of my female dog. She can smell this pill a mile away and doesn't like it.
My male dog will take it if it is hidden in a piece of cheese, and I have already been giving him little pieces of cheese first to get him into an eating frenzy.
I wish this effective medicine came in another form that would be easier to dose.
March 19, 2014
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
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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