What is Comfortis™ for Dogs?


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Our question this week was:

Dr. Debra - What is Comfortis for Dogs? My vet recommended it – I wrote it down but can't recall what he told me about it.



Hi – thanks for your email. You wrote asking about Comfortis™. Comfortis™ is a drug used to prevent and kill fleas. It is manufactured by Lilly and is labeled to last 30 days and starts killing fleas in 30 minutes. For more information about the drug – please read our drug profile - Spinosad (Comfortis™).

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Dr. Debra

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About The Author

debra-primovic Dr. Debra Primovic

Debra A. Primovic, BSN, DVM, Editor-in-Chief, is a graduate of the Ohio State University School of Nursing and the OSU College of Veterinary Medicine. Following her veterinary medical training, Dr. Primovic practiced in general small animal practices as well as veterinary emergency practices. She was staff veterinarian at the Animal Emergency Clinic of St. Louis, Missouri, one of the busiest emergency/critical care practices in the United States as well as MedVet Columbus, winner of the AAHA Hospital of the year in 2014. She also spends time in general practice at the Granville Veterinary Clinic. Dr. Primovic divides her time among veterinary emergency and general practice, editing, writing, and updating articles for PetPlace.com, and editing and indexing for veterinary publications. She loves both dogs and cats but has had extraordinary cats in her life, all of which have died over the past couple years. Special cats in her life were Kali, Sammy, Pepper and Beanie.