This is a specific conversation about Anxious Dog — ask about yours and get one honest answer for your exact situation.
inparticular.ai
Going from one cat to four overnight is a big shift for a dog who had the household figured out. Your Shih Tzu had a routine, a social balance, and then suddenly everything smelled different and got a lot noisier. How is he showing the anxiety — is it clinginess, hiding, barking at the cats, or something else?
Mostly clinginess and whining. He follows me everywhere and won't settle at night. He used to sleep on his bed in the corner no problem.
inparticular.ai
That tracks — he's lost his sense of security in his own space. The kittens have changed the scent landscape of the whole home, and for a dog that relies heavily on familiarity, that's genuinely unsettling. Is he eating normally, and are the cats actually bothering him physically, or is it more that he just can't relax around them?
Eating fine. The cats don't really go for him, but the kittens are a bit chaotic and he clearly doesn't know what to do with them. He just looks stressed when they're nearby.
inparticular.ai
Good — that tells me this is anxiety rather than conflict, which is easier to work with. He's not in danger, he just can't read the situation and it's keeping him on edge. At eight years old, Shih Tzus can be quite set in their ways, so unpredictable small animals bouncing around will genuinely bother him more than it might a younger dog. I'd go with the Adaptil Calm Home Diffuser. It releases a synthetic version of the calming pheromone mother dogs produce, and it works in the background without you having to do anything. You plug it in near where he rests — or where he's trying to rest — and it helps take the edge off that low-level background stress. It won't sedate him, it just makes the environment feel safer to him. One diffuser covers a decent area and lasts about a month per refill.
How long before it actually does anything?
inparticular.ai
Most owners notice a difference within a week, sometimes sooner. The nighttime settling tends to improve first because that's when the environment is calmer anyway and the diffuser can do its job without competing with lots of activity. Give it a full month before judging it — pheromone products work gradually rather than as a quick fix. If after a month you're seeing no change at all, that's worth a conversation with your vet about whether something additional is needed, but for what you're describing I'd expect meaningful improvement.
That sounds reasonable. Is there anything else I should be doing alongside it?
inparticular.ai
Yes — make sure he has at least one space the kittens genuinely can't get into. A baby gate with a cat flap cut in, or simply a room with a slightly ajar door a kitten can't push open. He needs somewhere that's still his. The diffuser will help with the general anxiety, but giving him a physical sanctuary reinforces that he hasn't lost his place in the home. That combination tends to work well.
