Are you a pet owner?

This webpage is exclusively for pet owners with a prescription for Zenrelia™ from their veterinary professional. The content is appropriate for owners in both the UK and Ireland; this may vary for content outside this page. We are required by law to only provide information about Elanco products for which customers have a valid prescription. 

If you do not have a prescription, please visit the main My Pet & I site.

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Enter your itchy dog's Zenrelia™ story and be in with a chance to win!

Has your itchy dog found relief with Zenrelia? We’d love to hear their story, helping other owners recognise that ongoing itch isn’t something dogs simply have to live with. Share their story for the chance to WIN a photoshoot for you and them. 

Plus every entrant will receive a KONG dog toy worth £15!

Please complete your details below so you can be in with a chance to win.

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Track your dog's itch relief

Your vet will have given you some information about Zenrelia, along with an itch tracker. Use this itch tracker to see how your dog’s itch level has improved from before treatment with Zenrelia to after the dog's treatment. 


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If you have any questions about Zenrelia, please speak to your vet.

Want to know more?

Zenrelia post prescription content

Relieving your dog's itch

Information on why your vet has prescribed Zenrelia and how it helps your dog.

Pet insurance

Pet insurance: your essential guide

Everything you need to know about insurance for your pet.

Petplan and Elanco

Activate 10% off* Petplan

Receive a 10% off introductory offer when you insure your pet online with our partner Petplan today. 

Zenrelia™ contains ilunocitinib. Legal category POM-V in UK, POM in IE.

Information regarding the side effects, precautions, warnings and contra-indications can be found in product packaging and leaflets; further information can also be found in the Summary of Product Characteristics. 

Advice should be sought from the prescriber prior to use. Prescription decisions are for the person issuing the prescription alone.

Zenrelia™, Elanco™ and the diagonal bar logo are trademarks of Elanco or its affiliates.

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PM-IE-26-0214 August 2026

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