Comfortis Chewable Tablets Rx
Starting At $106.07

Comfortis Chewable Tablets Rx


$106.07
Or save an extra 5% (up to $20) with Autoship* $100.77
  • Usually ships the same weekday before 3pm CT with veterinary approval.

  • Requires veterinary authorization.

  • Your pet's veterinarian will provide directions for use.

What are Comfortis Chewable Tablets for Dogs and Cats?

  • Comfortis is a prescription flea treatment for dogs and cats.
  • It contains spinosad, a type of insecticide that kills fleas and prevents infestations.
  • Fleas can be more than just annoying for pets and their families, they can put your pet's health at risk.
  • They can be very uncomfortable for both dogs or cats, and they can even develop allergies towards them, a condition called flea allergy dermatitis (FAD).
  • Fleas can also infect your pet with tapeworms, and commonly do, when your pet licks or bites and accidentally ingests them. 
  • Comfortis can start working within 30 minutes and provides 1 month of protection.
  • It comes in a flavored chewable tablet, making it easier to give.

Why do cats and dogs use Comfortis?

  • Veterinarians may prescribe Comfortis to prevent and treat flea infestations.

What else should I know about Comfortis?

  • Contains Spinosad.
  • Starts working within 30 minutes.
  • One dose provides one month of protection.
  • Flavored chewable tablet for easy dosing.

What problems could my dog or cat have with Comfortis?

  • Comfortis is not an effective treatment against ticks.
  • Keep chewable tablets out of the reach of children and animals.
  • Side effects are rare.

How do you use Comfortis?

  • Comfortis is best given with food. Follow your veterinarian's directions.
  • Comfortis can be harmful to wildlife. Contact your local waste disposal agency for proper disposal directions.

What is in Comfortis?

  • The active ingredient in Comfortis is the insecticide Spinosad.

Will I get what I see in the picture?

  • Comfortis is a brand name. You will receive the exact brand that you request.

Is it important for my dog or cat to finish all of the Comfortis?

  • Dogs and cats may use Comfortis for different lengths of time. Please consult your veterinarian if you have any questions.