Enzyme cleaner for cat stress overmarking

Stress-related overmarking in cats is a frustrating cycle — and your vet is absolutely right that cleaning the environment is a critical part of breaking it. If the urine scent remains, your Abyssinian will keep returning to the same spots to reinforce the mark, which makes the stress behaviour worse, not better. The only products that actually work here are enzyme-based cleaners — they biologically break down the uric acid crystals that cause the smell, rather than masking them with fragrance. Standard household cleaners won't cut it. Can you tell me which surfaces are affected, and are these fresh marks or ones that have been there a while and may have dried in?

Good to know — the set-in ones are the priority, because dried urine bonds to carpet fibres and fabric and that's what keeps drawing him back. For a vet-advised situation like this where you're trying to genuinely reset the environment, I'd recommend Simple Solution Extreme Cat Stain and Odour Remover. It's a professional-strength enzyme formula specifically designed for cat urine, including older set-in stains, and it works on both carpet and upholstery. The 'Extreme' version has a higher enzyme concentration than the standard, which matters a lot for set-in marks. One thing that's easy to miss — how many spots are we talking? That'll help me tell you whether a trigger spray or a larger refill bottle makes more sense for your situation.

With that many spots, get the larger bottle — Simple Solution Extreme comes in a 945ml trigger spray and also in a 4-litre refill. For the volume you're dealing with, the 4-litre is genuinely worth it. You need to saturate the area properly, not just surface-spray it, especially on carpet where urine wicks down into the underlay. Spray it on, work it in lightly, then let it air dry completely — don't blot it up immediately. The enzymes need dwell time to work. For the sofa, test a hidden area first for colourfastness, but it's safe for most upholstery. Once every treated area is fully dry, your vet's plan to address the stress triggers will actually have a clean slate to work from.

Stick with this as your cleaning product — don't layer other cleaners over it, and avoid anything ammonia-based before or after, as ammonia smells similar to urine to cats and can make things worse. The one thing worth adding alongside your vet's plan is a FELIWAY Classic diffuser in the living room. It won't clean anything, but it releases synthetic feline facial pheromones that reduce stress-driven marking behaviour. It's not a substitute for the enzyme cleaner — it works on a completely different level — but used together with a properly cleaned environment, it supports what your vet is trying to achieve. That said, if your vet has already mentioned pheromone therapy, you're ahead of the game.

That's the right call. Simple Solution Extreme Cat Stain and Odour Remover, 4-litre — it's available on Amazon UK. Saturate each spot, let it dwell and air dry fully, and don't rush it. Once those scent anchors are genuinely gone, your Abyssinian loses the chemical trigger to keep returning to those spots, and the FELIWAY and whatever else your vet has recommended can actually do their job. Good luck with him — Abyssinians are sensitive cats and stress overmarking is really common in them, so you're doing the right things.