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More Than 2 Million Dogs Reach for Zen: Elanco Helps Veterinarians and Pet Owners Navigate Extended Allergy Season With Zenrelia(TM) (Ilunocitinib Tablets)

$ELANPress releaseOct 14, 2026, 11:30 AM ETRead the release

Elanco's Zenrelia (ilunocitinib tablets) has treated more than 2 million dogs across 48 countries, including the U.S., EU, UK, Brazil, Canada, Australia and Japan. Since its September 2024 U.S. launch, Zenrelia has shown 99% prescribing loyalty among surveyed U.S. veterinarians, and Elanco is promoting it ahead of a lengthened fall allergy season that Climate Central says stretched an average of 11 days from 1970 to 2025.

Key figures

Dogs treated
more than 2 million
Itchy dogs us
nearly 79 million
Countries available
48
Prescribing loyalty
99%
Allergy season lengthening avg
11 days (1970-2025)

AI analysis

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