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My dog's flea treatment isn't working. What should I use instead?

Updated On September 23rd, 2025

Pet's info: Dog | Cavalier King Charles Spaniel | Male | neutered | 8 years and 8 months old

My dog has been having rspca fleaway fleatreatment but It doesn’t work,do you recommend a flea treatment(I’ve heard advantage or frontline plus are good but are they)I would have advocate but it’s so expensive at the vets. Thankyou

1 Answer

Most Helpful Answer

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Answered By Laura Johnson VMD

Veterinarian

Published on November 15th, 2017

Hi, thanks for using Petco Pet Education Center, formerly Petcoach! Fleas are super smart and have developed resistance to a lot of products. In the US we see fleas that are resistant to Frontline. Maybe a little less to Advantix/Advantage. Personally I think the new oral flea and tick preventions are the best: Nexgard and Simparica are monthly and Bravecto is one pill every 3 months. Also the Seresto collar is great and good value for the money, the collar lasts 8 months. These products are not cheap, they cost about $16/dose. But they are prescription from a Vet only. The price is worth the efficacy and it will save you in the long run from trying multiple products, bombing your house, etc plus it will help your dog quicker. I hope this helps and have a great day!

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