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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 226 reviewers.
Rated 5 out of 5 by This Product Works! Our two Dogs and one Cat had been on Advantage for years. A couple of years ago it basically quit working! We had a Flea Investation in our Florida and Georgia home and our pets were going crazy. Our Vet recommended Comfortis and we bombed both our homes for a few hours each. Within a day everything was back to normal...no scratching, no fleas. Thanks, Doug Mitchell May 26, 2015
Rated 5 out of 5 by Effective and easy to use! Only one that has been consistently effective. We have used several other brands, most were not effective and messy to use as well. April 29, 2015
Rated 5 out of 5 by Very good price! This was the first time I ordered from Pet Care RX and I am very pleased with the products and the service. April 23, 2015
Rated 5 out of 5 by Best Flea Medicine Ever! Our dog is allergic to flea bites and we have tried all of the top brands and even prescription medicine from vet. They either don't work as advertised or they make her sick. Finally, Comfortis became available and my vet. was as interested as we were to see if this would be the "flea med." that would really work and not make our dog sick. Well, IT DOES WORK AND IT DOESN'T MAKE OUR DOG SICK!!! Ask your vet. about Comfortis. You can order it through this site and they will contact your vet. direct. It is easy to do. We give the tablet to our dog with her dinner and she is fine with it. We are so happy that she no longer has to suffer. Also, because Comfortis repels fleas she doesn't bring any in to the house or car! Big Bonus for all of us! April 6, 2015
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
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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 107.99 Condition: new In stock! Order now!
Comfortis Flea Preventative 5 out of 5 0 based on 226 ratings.