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Dog still has fleas. Is it safe to give another dose of flea medicine?

Updated on September 23rd, 2025

Pet's info: Dog | Mixed Breed Small (up to 22lb) | Male | neutered | 11 years and 8 months old | 14 lbs

i gave my JRT some pet armor when we found some fleas. It has 9.7% fipronil. a week later we found more fleas so i gave him another dose. a week later (present day) i saw another flea and he's been gnawing like crazy so I bought pet armor plus with 9.8% fipronil and 8.8% methoprene. Am I safe to give him this with all the medicine he's already received?

1 Answer

Most Helpful Answer

Dr. Macartney, BVet Med, MRCVS

Answered By Dr. Macartney, BVet Med, MRCVS

Veterinarian

Published on September 21st, 2017

I would not use any more fipribol containing products for at least a month at this stage.

I would instead trying treating your hoke for fleas as fleas actually spend most of their life cycle off of animals and in your home. Here is a product I recommend for treating your home;

www.drsfostersmith.com/product/prod_display.cfm?pcatid=27756

Here is also a good resource to help you as you try to elongate the flea problem;

https://www.petcoach.co/article/5-tips-to-get-rid-of-fleas/
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