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At a Glance
Comfortis is safe for use in dogs and cats
Prevents flea infestations for a full 30 days
Kills fleas within 30 minutes
This product requires a prescription.

Comfortis

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

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Rated 5 out of 5 by 250 reviewers.
Rated 2 out of 5by I don't know about this.So today I gave my cat this product for the first time and all was good but after a hour my poor cat brething got really heavy and he was panting and he NEVER does this And his breathing is really fast..Now I think its from this product because my cat is 100% heathly I took him to the vet and they said he was so I don't know what happen here I'm sitting here watching my poor baby act like this ...What should I do ???? Please help! 12/01/2016
Rated 1 out of 5by DO NOT BUY THIS!!THIS PRODUCT IS KILLING DOGS - PLEASE DO NOT GIVE THIS TO YOUR BELOVED COMPANION!!! 09/21/2016
Rated 3 out of 5by It works well but tough to get them to eat itThis product saved a feral cat i take care of.He had a bad flea allergy.Only problem is the pill is massive and no matter what food i put it in he knows it right away and 2 licks and walks away.After the 1st time it was almost impossible.Crushed it up as fine as possible and put it in all his favorite wet food.Taste must be awful.Too big 07/27/2016
Rated 5 out of 5by much beter than the oils I have been using Comfortis for years on all my dogs. I put it in their food. No adverse reaction. no messy oily fur like other products. 07/08/2016
Rated 5 out of 5by I highly recommend Comfortis This is the easiest flea prevention medicine I've used for my cat. I just crush it up and mix it with a little wet food. No struggling to hold my cat still, no mess, no worrying about whether or not the medicine is on here he can lick it and get sick like with topical treatments. 07/03/2016
Rated 5 out of 5by Super easy to use, no mess and it works! Having tried numerous products we find Comfortis Brown to be great. We have a 90 lb. 2 year old female weimaraner who has a delicate stomach and sensitive skin. Other topical products have given her rashes and other ingestibles have caused her to vomit. With Comfortis Brown she has no side effects and the product works. We live in Southern California so we usually start flea prevention meds by the middle of April. This year we fell behind and found she had a few fleas on her. After giving her one chewable following her evening meal (she thinks its a treat and loves them!) the next morning the fleas were gone and we have not seen a flea since. We are very active and outdoors regularly with regular interaction with other dogs. The fleas still stay away. 05/26/2016
Rated 1 out of 5by Good for dogs but not finicky catsI just wish this was available as a small pill I could successfully get down my cats throat . I gave up trying and gave comfortis to my neighbor for her dog. 05/03/2016
Rated 5 out of 5by A Miracle!Our little five month old Molly kitty came to us, horribly infested with fleas. She is a long hair, part Persian. NOTHING was helping, including bathing and combing, until we took her to our local Vet and she was given Comfortis. The fleas began to literally fall off of Molly, within minutes! By the time we arrived home, just a few minutes later, Molly's blanket was covered in fleas...100's! NOT a typo! By that very evening, Molly was a different little girl...happier than she had been since we brought her home. THANK YOU, Comfortis!! From a family of believers!! :) 01/30/2016
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