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Reach for Zen.
Reach for Zenrelia™ (ilunocitinib tablets).


Zenrelia is an innovative, once-daily treatment that offers dogs relief from itchy and irritated skin caused by allergic and atopic dermatitis.


Zenrelia is a prescription medication used to control itching and inflammation associated with skin allergies for dogs over 12 months of age.

Highly rated by vets and dog owners1

The biggest thing I noticed was that he was back to playing... not running in the other room to itch. Honestly, I was so happy that he was not itching. All his hot spots went away.

Robin about her fur-baby, Trooper

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Zenrelia aims to get your dog back to normal*

Treatment you can turn to when your dog has itchy skin.

Zenrelia is the innovative, oral tablet that offers dogs rapid relief from itchy and irritated skin with just one dose a day.2

As well as improving red, inflamed skin, Zenrelia can reduce your dog’s itch back to just the normal*, occasional good scratch – and lets them get back to being themselves.

Zen is within your reach

Oral Treatment

Hypoallergenic, unflavored oral treatment

Once a day

Given once a day, from the comfort of home

With our without food

With or without food

Rebates

Save when purchasing Zenrelia. Redeem $9 off a 30-count and $20 off 90-count.

Product brochure and itch tracker

Read the brochure and use our itch tracker to monitor your dog's progress.

Ask your vet if Zenrelia is right for your dog

Top questions about Zenrelia

INDICATIONS

Zenrelia is a prescription medication used to control itching and inflammation associated with skin allergies for dogs over 12 months of age.


IMPORTANT SAFETY INFORMATION

Read the package insert, including the Boxed Warning, before using this drug. For full prescribing information speak with your veterinarian, call 1 888 545 5973 or visit www.elancolabels.com/us/zenrelia.


WARNING: INADEQUATE IMMUNE RESPONSE TO VACCINES. Based on results of the vaccine response study, dogs receiving Zenrelia are at risk of an inadequate immune response to vaccines. Discontinue Zenrelia for at least 28 days to 3 months prior to vaccination and withhold Zenrelia for at least 28 days after vaccination. Dogs should be up to date on vaccinations prior to starting Zenrelia. Do not use in dogs less than 12 months old or dogs with a serious infection. Dogs should be monitored for infections because Zenrelia may increase the chances of developing an infection. Neoplastic conditions (benign and malignant) were observed during clinical studies. The most common side effects were vomiting, diarrhea and tiredness. Zenrelia has not been tested in dogs used for breeding, pregnant, or lactating dogs and has not been evaluated in combination with glucocorticoids, cyclosporine, or other immune suppressive drugs.

Zenrelia, Elanco and the diagonal bar logo are trademarks of Elanco or its affiliates. PM-US-24-0675(4)

© 2025 Elanco or its affiliates.