My new cat won't stop attacking my old cat. What can I do?
Updated On September 23rd, 2025
Pet's info: Cat | Mixed Breed | Male | neutered | 15 lbs
My partner and I moved in together 6 months ago, and we've been trying to get our cats to get along. We introduced them slowly like we're supposed to - keeping them separated at first, switching rooms to let them get used to each other's scent, and introducing them slowly. But one of them, Donut, won't stop attacking the other, Mona, literally every time he sees her. Mona is very small and timid and Donut is big and tough. Is there any way we can get them to tolerate each other without fighting?
2 Answers
Most Helpful Answer
Published on May 25th, 2018
I would recommend to add some feliway multicat household in your house. I would also consider putting Donut on an anti-anxiety medicine to help calm him down. You can talk to your vet and they can prescribe something to try. I hope this helps. https://www.feliway.com/us/Products/FELIWAY-MultiCat-Diffuser
1Pet Parents found this answer helpful
Related Answers from Veterinarians
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Published on January 27th, 2020
I hate to hear this is happening. It could be related to stress or it could be hormonal as Lola is not spayed, yet. Since she can't talk and tell you why this is happening, I recommend to have Lola examined by the veterinarian and to discuss having her spayed. The doctor can also provide medications to help with anxiety. Environmental enrichment may also helps. Here is a great article about cat's instinctual needs: https://www.petcoach.co/article/why-every-cat-needs-a-place-to-climb/ Use a Feliway diffuser, set aside 30 minutes a day for vigorous play and/or switch the food to Royal Canin Calm. Most cats response best to combination therapy. I hope this helps.
1Pet Parents found this answer helpful
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