One little flea can't possibly be a problem, can it?

It can. A single female flea can produce up to 50 eggs a day,1 turning “one little flea” into a full-blown infestation before you even know it's there. Comfortis® (spinosad) for dogs starts killing fleas before they lay eggs and provides a full month of flea protection to help prevent future flea infestations.


As fleas have developed resistance to popular flea products, such as Frontline Plus, Advantage, etc. In fact, Comfortis is currently the most effective flea treatment on the market today, and has the highest overall satisfaction rating when compared to other monthly flea control products.

And Comfortis is easy to administer!
A beef-flavored, chewable tablet
— no residue, no worries about washing off after swimming or a bath.


Comfortis Pill

Fast-acting Flea Control

Convenient and Easy to Use

Won't Wash Off

Doesn't Require Isolating Your Pet

Safe, easy, month-long flea protection in a chewable tablet.



For a limited time

Get a 6 MONTHS SUPPLY
Starting at just $49

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IMPORTANT SAFETY INFORMATION

The most common adverse reaction reported is vomiting.
To reduce the odds of this happening, it is highly recommended, that you give on a full stomach, and consider wrapping in a piece of cheese or meat. Very important that you keep an eye on your dog, for a full 30 - 40 minutes after, you give the pill. If vomiting occurs, the dose will be effective. veterinarians suggest, you attempt to re dose the dog, and repeat the same process. Although extremely rare, if vomiting does again occur, discontinue use of Comfortis.Other adverse reactions reported in decreasing order of frequency are: depression/lethargy, decreased appetite, in coordination, diarrhea, itching, trembling, excessive salivation and seizures.

Following higher dose usage of ivermectin (Heart Guard) with Comfortis, some dogs have experienced the following clinical signs: trembling/twitching, salivation/drooling, seizures, incoordination, excessive dilation of pupils, blindness and disorientation. If your dog is currently on higher doses of ivermectin (Heart Guard), it is recommended you do not use Comforts for your flea control needs.

View full product label for complete safety information.

This web site is not authorized, affiliated with or sponsored by Eli Lilly and Company.
Comfortis@ is a registered trademark of Elanco


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