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
- Water-based, pH balanced, and non-irritating
- Guaranteed not to rinse out flea and tick medicine
- Lathers up quick and rinses out easily
- Fresh, clean fragrance
Rated 4.8 out of 5 by 205
Rated 5 out of 5 by Chasss The product has always been an ecffective one..
good product ... has always worked for my dogs..I wish it was a chewable pill rather than a hard pill
September 10, 2014
Rated 5 out of 5 by maggly Doesn't poison your other pets
I asked the vet to recommend something for my cats that wasn't applied to their fur because they washed topical flea meds off each other. Comfortis fills the bill. Sometimes they will chew it, other times I have to pill them.
September 4, 2014
Rated 1 out of 5 by Judith18 Useless!
I gave Comfortis to my two cats days ago. They are still scratching. With its high price tag Comfortis seems to be absolutely useless. Makes me wonder if the positive reviewers were paid. Oh how I miss the original Advantage - fleas were gone almost instantly. Any suggestion of what works to get rid of fleas would be appreciated.
August 31, 2014
Rated 5 out of 5 by aeakrs Works great.
This product is a little pricy but it was the only thing I could use to keep fleas off. My dog was being eaten alive with them. Within two days after first using Comfortis, I could not find any fleas.
August 26, 2014
Rated 5 out of 5 by JakesMom Love this product!
I have been using this product over a year now and just love it! No more dealing with putting drops on Jake and it not working. Since he has been on Comfortis, he has not had a flea. I will continue using this product. Yes it is a little pricey, but it works and that is all I care.
August 20, 2014
Rated 5 out of 5 by Doglvr22 Awesome!
Best thing ever created! Fleas started freaking out within minutes. Hopefully it continually works this well month after month.
August 7, 2014
Rated 5 out of 5 by Linny The BEST flea med
After trying everything, I will stick with Comfortis. THE BEST. I give it once every 6 weeks with a dab of peanut butter. It is the only flea killer that works even if you bathe your dog. You don't have to worry about the greasy mess on their back or the burn and bald spots that the topical stuff causes.
August 1, 2014
Rated 5 out of 5 by WoodOfTheWest It works wonders!
Both our large dogs had been covered (think hundreds) in fleas for weeks no matter how many times we sprayed, bathed and dosed them with topical preventitives. Within 4 hours, the fleas were super active; by 16 hours, they were gone. We've only seen a handful since then and it's been a month. Hooray!
July 27, 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.
In stock! Order now!
Comfortis Flea Preventative
based on 205
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