Elanco launches Befrena for canine allergic dermatitis treatment

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Elanco Launches Befrena™ (tirnovetmab), New Anti-IL-31 Monoclonal Antibody, a Breakthrough Addition to the $1.3 Billion U.S. Canine Dermatology Market

May 18, 2026 7:27 AM EDT

Phased launch of new anti-IL-31 monoclonal antibody is now underway, with product being used by select Early Experience Program veterinarians in clinics today

Befrena is effective for the treatment of dogs against allergic dermatitis and canine atopic dermatitis with no age or weight restrictions, and lasts 6 to 8 weeks, compared to the 4 to 8 weeks of the current market incumbent, lokivetmabStarts controlling itch within 24 hours and is given as an in-clinic injectionSelect Early Experience Program veterinarians are already using Befrena in clinical practice and seeing positive outcomesMeet Beaux,... More