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Why is my cat acting aggressive and stressed since we got a new cat?

Updated On September 23rd, 2025

Pet's info: Cat | American Shorthair | Male | neutered | 6 years and 4 months old | 14 lbs

I've had Slade since Dec 2015, he was always the sweetest cat, but ever since Princess came into the picture, a year ago, he's a completely different cat, he lashes out at her, he growls at everyone, and doesn't sleep in our bed anymore; he used to sleep in our bed every night.

1 Answer

Most Helpful Answer

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Answered By Dr. Leigh, DVM

Veterinarian

Published on May 1st, 2017

He may be experiencing some stress and anxiety from having another cat in the house. You could try Feliway Spray or a diffuser and see if that helps. You could also try Solliquin and see if that helps. If he is still having issues than your vet could prescribe an anti-anxiety medication, like Prozac. http://www.feliway.com/us/#redirected http://www.solliquin.com/

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