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Will my senior cat's body toxins kill fleas, or do I need treatment?

Updated on September 23rd, 2025

Pet's info: Cat | Siamese | Male | neutered | 10 lbs

I have an old cat would toxins in his body kill fleas

1 Answer

Most Helpful Answer

Ann Dion, DVM

Answered By Ann Dion, DVM

Veterinarian

Published on July 9th, 2017

Hello. Fleas are insects so the drugs used to kill the fleas are of a different type than any 'natural toxins' that could be involved with an older cat (such as kidney/liver disease producing toxins in the body). Also, older cats can safely receive drugs to kill fleas, but it is important to check with your vet that you are getting a safe product. Call your local clinic and ask what product they recommend. If that doesn't answer your question please ask in a different way. Thank you and good luck with Louie.
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