Numelvi price comparison UK
EU brand name for ilunocitinib - the same JAK inhibitor sold as Zenrelia. Used daily for atopic dermatitis in dogs. Active ingredient: ilunocitinib. Below: compare UK vet prices with VMD-approved online pharmacies for your dog's weight.
What Numelvi treats
EU brand name for ilunocitinib - the same JAK inhibitor sold as Zenrelia. Used daily for atopic dermatitis in dogs.
Why it costs more at the vet
Same Elanco product as Zenrelia, sold under the Numelvi name in some EU markets and UK practices. Available online at typically 35-45% less than vet.
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Email template, prescription steps and refill setup — the full path from "I just paid too much at the vet" to "I'm saving £X every month".
How to get a written prescription
The CMA Order is legally binding by 23 September 2026. Every UK vet must offer a written prescription on request, with the fee capped at £21 for the first medicine plus £12.5 per additional medicine on the same prescription. Take the prescription to any VMD-approved online pharmacy listed above. We have a short guide with a template email you can send to your practice.
Common side effects
- Vomiting
- Diarrhoea
- Lethargy
This is not a complete list. Always read the patient information leaflet and speak to your vet about side effects.
FAQ
- Numelvi vs Zenrelia - is there any clinical difference?
- No. Same molecule, same dose, same manufacturer. Pick whichever your prescription specifies and whichever is in stock cheapest online.
- Can my pharmacy substitute one for the other?
- Only if your prescription is written generically (as 'ilunocitinib') or specifies both as acceptable. Ask your vet to write it generically.
Related reading
- Apoquel side effects — what UK dog owners should actually watch for
The common ones (vomiting, lethargy), the important ones (lumps, demodex, infection masking) and the rare ones. Plus two questions to ask your vet and when to come off.
Related medications
Track Numelvi price drops
We'll email when Numelvi drops in price at any of the pharmacies above.
Pricing data status: indicative. Last verified 2026-05-15. Pharmacies change prices regularly - always confirm before purchase. Not medical advice.