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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

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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This product requires a prescription.
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Customer Reviews

Rated 4.8 out of 5 by 222 reviewers.
Rated 5 out of 5 by My dogs love it My two dogs use this monthly. They can not take whole tab at one time so I have to cut in half and give each one two halves separately. They used to just take the tabs au natural but now they both expect their meds in Pill Pockets so that's how they get their Comfortis... It's less expensive buying from Petcarerx then getting them from my own vet. March 23, 2015
Rated 5 out of 5 by Great solution for cat fleas! Our poor cat was acting unusual which I finally realized it was from our dog having fleas. Now the cat had them! This product works within 30 minutes and REALLY works great! FYI: Make sure your cat eats before/after giving the medication. February 21, 2015
Rated 5 out of 5 by This product is easy to use. This product is easy to give. My dog thinks it is one of his favorite treats. It works fast and continues to work all month long. February 18, 2015
Rated 5 out of 5 by Very easy to admimister, no mess I use this product on my dogs and cats. It is effective the following day I administer it. January 31, 2015
Rated 4 out of 5 by Works great for the first 20 days I started my mixed Yorkie/Dachshund on Comfortis two months ago. The first time she didn't eat enough with the medicine and several hours later vomited a little. The second dose I was more careful to give on a full stomach and she did fine. It works fast and the fleas are gone but not for the full month. About 20 days and she is starting to itch. I still prefer it over the topical treatments because they were no better for duration, they are slower to start working and messy! December 23, 2014
Rated 5 out of 5 by A-Mazing I have an indoor cat and never thought that she could ever get fleas. Unfortunately, my ignorance resulted in a horrific infestation of my home and beloved pet. I tried the internet "home remedies" to no avail, and my poor kitty was absolutely miserable. After a quick trip to the vet, she recommended this product and by the next day my cat was her normal self. I had tried baths, flea combs, dishsoap, sprays.....none worked. Comfortis killed it (literally). THANK YOU!! December 7, 2014
Rated 5 out of 5 by Love this product I've been using Comfortis for several months now and have had no issues with fleas whatsoever. My dog takes it just fine, no side effects that I've noticed. I would recommend this product. November 23, 2014
Rated 5 out of 5 by One of my dogs eats fast, the other I have to hide the taste in something strong like sardines. Other products killed flees. Only Comfortis stopped Ticks for more than a month. November 22, 2014
  • 2015-03-28T17:07:38.069-05:00
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Customer Q&A

Lilly Flea & Tick Comfortis Flea Preventative http://cdn.petcarerx.com/img/PrdImg/095x095/13044_001_m.jpg 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. prescription 109.69 Condition: new In stock! Order now!
Comfortis Flea Preventative 5 out of 5 0 based on 222 ratings.