Contact Information

Comfortis Phone Numbers

Toll-Free Number:

  • (888) 545-5973 toll - free

Customer Service:

  • (888) 545-5973 toll - free

media relations and communications department:

  • (877) 352-6261
  • (877) 495-4185
  • (877) 304-8457
Write review

does not support this feature.

Currently you can call only US numbers.

Comfortis Email:

Corporate Office Address:

Elanco Animal Health
2500 Innovation Way
Greenfield, Illinois 46140
United States

Summary of Comfortis Customer Service Calls

04:38 AVG CALL

Top Reasons of Customers Calls

Consumers Call the Most From

Customers Contact Comfortis to Ask about:

Refund Question:

  • “My dog and cat are still interested with fleas. I had to get 2 pills for each animal within a 15 to 20 day period. It's expensive and I want it to be fixed either refund or more pills to fix the problem.” , Review # 1282836

Other Question:

  • “Neurological issue on confortis” , Review # 1374800
  • “Action of comfortis”
  • “I was told to contact comfort is by my vet issue with the pill”

Comfortis Rating Stats

1.2 out of 5 stars
based on 6 reviews
See all 16 reviews

Rating trend


Comfortis FAQ
Explore these categories to find answers to many of Comfortis's' frequently asked questions. The most common adverse reaction recorded in clinical trials was vomiting. Other adverse reactions were: lethargy, decreased appetite, weight loss, and diarrhea. Use with caution with concomitant extra-label use of ivermectin. The safe use of Comfortis in breeding, pregnant, or lactating cats has not been evaluated. The most common adverse reaction reported is vomiting. Other adverse reactions reported in decreasing order of frequency are: depression/lethargy, decreased appetite, incoordination, diarrhea, itching, trembling, excessive salivation and seizures. Following concomitant extra-label use of ivermectin with Comfortis, some dogs have experienced the following clinical signs: trembling/twitching, salivation/drooling, seizures, incoordination, excessive dilation of pupils, blindness and disorientation.
Top Comfortis Products

Flea Control


Comfortis is a chewable beef-flavored tablet for oral administration for dogs and cats. It is manufactured and distributed by Elanco. The company was founded in 1954. Comfortis is safe for old pets and puppies 14 weeks of age. It starts killing fleas in 30 minutes after tablet taking. The main ingredient is spinosad. It is possible to administer Comfortis with food. Full effectiveness lasts for a month. The tablet can be used to prevent flea infestations any time of the year. No washing off after bathing, grooming, or swimming is required. Right dosage to dogs and cats can be prescribed by veterinarian. Pets may have side effects with Comfortis.

Comfortis reviews and complaints

Comfortis is ranked 68 out of 493 in Pet Medicine and Veterinary Clinics category

Area Served


Edit Description

Comfortis Stats

Filter Reset Filter by range.
  • Day
  • Week
  • Month
Level of detail.

Number of Reviews

No reviews for this period.

Number of Comments

No comments for this period.

Number of Calls

No calls for this period.

Compare Comfortis to

Write a review
Do you have something to say about Comfortis? What happened? What can we help you with?
Submit review Don't show this popup