My understanding of Librela is that it specifically targets arthritis pain. I don't think it has anything to do with the breed, but more about what kind of pain they are in. My bigger, older dog did much better on it, but not as well as my dog with elbow dysplasia, who basically was made brand new again.

The other comments imply the same; it will depend a bit on the dog's condition. That being said, I still stand by my miracle drug assertion. And seemingly side-effect free.