Calming support for anxious older Pomeranians

It's reassuring that your vet has already done the groundwork — ruling out thyroid involvement in a 10-year-old Pomeranian is exactly the right first step, because hyperthyroidism can mimic anxiety so closely. Now that it's confirmed as behavioural or neurological in origin, the goal is finding calming support that's genuinely gentle on an older small dog's system. To point you in the right direction: what does the anxiety actually look like day to day — is it trembling, vocalising, restlessness, or something else? And does it seem constant, or triggered by specific situations like being left alone or loud noises?

That pattern — evening trembling, clinginess, distress at mild separation — is really common in senior small dogs and fits what's sometimes called late-onset anxiety, where the nervous system just becomes less resilient with age. The vet's instinct to try a non-prescription route first is sensible here. Can I ask: has she ever had any supplements or calming products before, and is she on any regular medication currently? I want to make sure there's no interaction risk.

Perfect — glucosamine has no interaction with what I'm going to suggest, so you're clear there. My recommendation is Zylkene 75mg capsules by Vetoquinol. Zylkene is derived from a protein in cow's milk called alpha-casozepine, which has genuine clinical evidence behind it for reducing anxiety in dogs — it's not a herbal supplement with vague claims, it's been studied in veterinary contexts specifically. The 75mg size is made for small dogs under 10kg, which fits a Pomeranian well. You open the capsule and sprinkle it over food once daily. It typically takes 1–2 weeks to show effect, so it's not an instant fix, but for ongoing low-grade anxiety like you're describing it works gradually and safely. It's also something your vet will recognise and approve of — many recommend it as the first non-prescription step. Available on Amazon UK, usually in 10, 20, or 30-capsule packs.

Yes, it's considered safe for continuous long-term use — there's no sedation, no dependency, and no known organ burden, which matters a lot for a 10-year-old dog whose liver and kidneys you want to protect. Many owners of senior dogs use it daily as part of their routine, like a supplement. That said, it's worth a check-in with your vet after a month to see how she's responding — if the trembling and clinginess reduce significantly, great, you carry on. If there's only partial improvement, your vet might want to layer in something additional or revisit the diagnosis. But as a starting point with a vet's green light, Zylkene is exactly the right product for her.

The 30-capsule pack is the right call — it gives you a full month's trial which is enough time to see a genuine difference. Keep a rough note of her trembling and clingy episodes in the first two weeks versus the last two, so you have something concrete to report back to your vet. I hope she settles — age-related anxiety is very manageable once you find the right support.