Comfortis Chewable Tablet for Dogs, 60.1-120 lbs, (Brown Box)

By Comfortis
Rated 4.7727 out of 5 stars
Prescription Item

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$120.99Chewy Price
$114.94Autoship Price
(Save an extra 5%)

Why Autoship?

  • Save 5% on all future Autoship orders
  • Set your schedule based on your pet's needs
  • No fees, no commitments - skip, change or cancel anytime.

In Stock
FREE delivery
Usually arrives in 3-5 days
We'll collect your pet's prescription information at Checkout.

This item requires prescription approval.

Medications ship separately. Delivery times may vary.

Frequently Bought Together

About This Item


Comfortis is a chewable medication prescribed by veterinarians for dogs and cats to help treat -- and possibly even prevent -- flea infestations for up to one month. These flavored tablets can be added to your pet's favorite food and only need to be given to your canine companion once a month to help combat fleas.

Proudly sourced directly from the manufacturer or their approved distributor. Guaranteed genuine and backed by the manufacturer.

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Play Video: Learn More About Comfortis From Our Team of Experts
Learn More About Comfortis From Our Team of Experts

ReviewsWrite a Review

Rated 4.7727 out of 5 stars
44 Ratings
Would recommend to a friend

44 Customer Reviews

Always consult a veterinarian about your pet’s health needs. Customer reviews should not be used as medical advice.
Rated 5 out of 5 stars
By oona on Jul 17, 2023

One of a Kind

This helps zap fleas and makes your dog magnet to them. This gets rid of fleas lingering in the home. Of course general house keeping a must The best part is you don't have to continue in the winter months. I Like this so much better than topical.

Rated 5 out of 5 stars
By Tom on Sep 7, 2023

Autoship Works Great!

I've been using Autoship for about a year now. I'm very happy with the service and saving a little bit of money too!

Rated 5 out of 5 stars
By Nana19557 on Jul 26, 2023


Comfortis has consistently worked on the farm where we cannot control the fleas in the environment.

Rated 5 out of 5 stars
By Sarah on Jun 15, 2023

Flea Killer

Great product! Kills fleas within 30 mins and you can literally see them falling off or dead on the floor!

Rated 5 out of 5 stars
By Carlean on Apr 25, 2023

Excellent Flea Control

Have used Comfortis for many years with multiple dogs and have always been pleased. Very effective, long lasting and no adverse side effects.

Rated 5 out of 5 stars
By Kimber on May 20, 2023

Easy process

I have used this before, bought from vet. New vet didn't carry. Easy process getting from Chewy.

Rated 5 out of 5 stars
By Jilly on Feb 4, 2023

Works great!

This product works great! It's been out of stock for a long while and been waiting! Can't find anything else that works like this It's amazing for my pet!

Rated 5 out of 5 stars
By trish on Jun 15, 2023

great service

good product , great service

Rated 4 out of 5 stars
By chewy on Nov 20, 2021

Safe for your pet

I'm pretty funny when it comes to me giving my dog pills for everything but I have large dogs which comes large problems. I stumbled upon this at the Humane Society Vet in my town and have stuck with it for years now. My dogs can take this on an empty stomach wrapped in something pill pockets ect. I keep the animal in for the next 3 hours so they don't try and eat grass and then get sick. They ingest the pills and in the next few hours you can see the fleas dying.My dogs got fleas from the squirrels in my yard and were misereable a few hours after this they are all so happy to not have fleas. Has a flowery smell to it so my dogs can smell when its coming so mask it.

Rated 5 out of 5 stars
By Ashley on Nov 17, 2021

Awesome product, amazing service!

Awesome product, I wouldn't even think about using anything else. I have used Comfortis for years with multiple dogs (my own and fosters) and it has never let me down... fleas gone within hours! This was the first time that I ordered medication from Chewy, and I have to say that I was pleasantly surprised with the ease and quickness of the entire process! Thank you Chewy!