Zenrelia price comparison UK
Daily JAK inhibitor for atopic dermatitis in dogs. Same drug class as Apoquel. Aims to control itching and skin inflammation within hours. Active ingredient: ilunocitinib. Below: compare UK vet prices with VMD-approved online pharmacies for your dog's weight.
What Zenrelia treats
Daily JAK inhibitor for atopic dermatitis in dogs. Same drug class as Apoquel. Aims to control itching and skin inflammation within hours.
Why it costs more at the vet
Newer Elanco-branded JAK inhibitor, premium-priced. Online pharmacies sell the same product at 30-45% less than the average UK vet practice.
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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
- Is Zenrelia the same as Apoquel?
- Same drug class (JAK inhibitor) but different active ingredient. Zenrelia is once daily and was approved more recently. Your vet decides which fits the dog.
- Can I switch from Apoquel to Zenrelia?
- Only on your vet's advice. They will write the prescription, which you can fill at any VMD-approved online pharmacy.
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.
- How long does Cytopoint take to work? (And how to think about cost)
Day-by-day timeline of the Cytopoint injection, what to do if it isn't working by day 7, and the split-prescription trick that nearly halves the bundled vet price.
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Track Zenrelia price drops
We'll email when Zenrelia 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.