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Costco Kirkland flea product

Species: Dog
Breed: Amer. Bulldog
Age: 2-5 years
Hello
We have 2 American Bulldogs. We have been using Frontline for a few years and we love it.
We discovered today at Costco, a new flea formula (their "Kirkland" brand") containing Etofenprox, which is a *different* active ingredient than Frontline, but at a fraction of the cost.
Frontline is very pricey!

Anyway - how effective is it compared to Frontline?
Does it last just as long? Is it waterproof?.
Does it *really* work as well as Frontline?

We just want to have an accurate understanding of the differences between these flea control products, from a licensed professional, before we decide.

Please email me at karn77@comcast.net

By the way, we don't own any cats.

Thanks!

KKL
WA State


Online vet, Dr. Marie

Dr. Marie replied:

I have never heard of the ingredient Etofenprox so I looked it up for you. It turns out that this is actually an ingredient that has been around for many years. It is a synthetic pyrethroid. According to the experts it is "marginally effective" against fleas.

The best products for fleas are definitely the ones sold by your veterinarian. I have found that almost all of the over the counter products will only kill a small portion of fleas. I can't tell you how many clients I see who have spent hundreds of dollars trying every OTC flea product they can find and then finally coming to me for something that works!

You can read more information on this type of thing here.

---This question was asked in our Ask A Vet For Free section.---


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Disclaimer: Although Dr. Marie is a qualified veterinarian, the information found on this site is not meant to replace the advice of your own veterinarian. AskAVetQuestion.com and Dr. Marie do not accept any responsibility for any loss, damage, injury, death, or disease which may arise from reliance on information contained on this site. Do not use information found on this site for diagnosing or treating your pet. Anything you read here is for information only.

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Dr. MarieDr. Marie is a veterinarian who practices in a busy animal hospital in Ottawa, Ontario. She created Ask A Vet Question as a resource for good, accurate veterinary advice online. Dr. Marie treats dogs, cats, hamsters, guinea pigs, and rats. She has been a vet since 1999.

Is an online vet visit just as good as a trip to your veterinarian? No! But, many times, asking an online veterinarian a question can help save you money. While Dr. Marie can't officially diagnose your pet or prescribe medications, she can often advise you on whether a vet visit is necessary. You can also ask Dr. Marie for a second opinion on your pet's condition.