Calming supplement stopped working? Switch advice

Four years on the same calming supplement is actually a long run — it's not unusual for dogs to build a kind of tolerance, or for anxiety to shift in character as they age, meaning what worked brilliantly before just doesn't cut it anymore. Separation anxiety is one of the hardest things to manage, and it's genuinely distressing when something that was helping starts to let you both down. Before I suggest what to switch to, can you tell me a bit more? What supplement has she been on, what does her anxiety look like now compared to when it was well-controlled, and has anything changed in her life or routine over the past year or so — including any health issues, since at nine, underlying pain or cognitive changes can quietly amplify anxiety in Dachshunds especially.

That IVDD history is really useful to know — thank you. Even a well-recovered disc episode can leave residual discomfort that isn't obvious day-to-day but ramps up when she's stressed and moving around. It's worth flagging to your vet if you haven't recently, just to rule out low-level pain as a contributing factor. On the supplement side: YuCalm is a good product, but it's lactic casein and L-tryptophan based, and after four years her system has almost certainly adapted to it. You need a different mechanism entirely, not just a higher dose of the same thing. One more quick question — does she eat her meals reliably, and is she on any medication currently?

Perfect — that makes this straightforward. My recommendation is to switch her to Zylkene (alpha-casozepine). It works on a completely different pathway to YuCalm — it's derived from a milk protein that acts on GABA receptors in the brain, producing a genuinely calming effect rather than just supporting serotonin precursors. It's very well studied, has a strong evidence base in dogs, and is particularly well-regarded for older dogs because it's gentle on the system and has no sedating side effects. For a Miniature Dachshund her size you'd use the 75mg capsules — you can open them and sprinkle onto food, which is handy. It typically takes two to three weeks to see the full effect, so give it a proper trial. Critically, it works best alongside some behavioural work — even something as simple as practising short departures and building back up can make a real difference at this stage. Zylkene 75mg is available on Amazon UK and is also stocked by most vets if you'd prefer that route.

You can overlap for the first two weeks without any issue — there's no interaction between the two, and it means she won't have a gap in whatever partial support YuCalm is still providing while the Zylkene builds up. After two weeks, drop the YuCalm and continue with Zylkene alone so you get a clean read on how it's working. Keep a simple log — even just a note on your phone of what the neighbour reports or what you observe on days you leave — so you have something concrete to show your vet if you want to revisit the IVDD angle or discuss a short-term pharmaceutical option alongside the supplement if needed.

Good — I think it's the right move for her. One last thing: given she's nine and a Dachshund, it genuinely is worth booking a routine vet check before too long even if she seems well. Subtle spinal discomfort, early cognitive changes, and anxiety can all feed each other in this breed at this age, and a vet who knows her is in the best position to join those dots if the Zylkene alone doesn't fully resolve things. Hope she settles well for you both.