My cat is subdued and not eating after flea treatment. Is this normal?

Question

My cat, Jax, is an indoor cat but he goes out every couple of days supervised. He was behaving strangely last night (jumping & running out of the blue) and this morning I noticed he had some irritation on his head above his eyes. He was scratching a lot and jumping up on all the furniture like he didn’t want to walk on the floor. I got some flea treatment and applied it about 10 hours ago. Now he is very subdued, hasn’t eaten and won’t come down from the shelf. Is this a symptom of fleas? Pet's info: Cat | Russian Blue | Male | neutered | 3 years and 4 months old

David Elbeze, DVM, MRCVS · Accepted Answer

It's not likely to be a symptom of the fleas but it could be a symptom of the flea treatment you use, some of them can cause a side effect of lethargy and lack of appetite which usually does not last more than 24 hours. if by tomorrow Jax is not better, i would recommend taking him to your vet to get checked and treated.

My cat is subdued and not eating after flea treatment. Is this normal?

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