Thank you for your responce. Have you ever prescribed Echinacea for a cat?
My current holistic vet says that cats can take milk thistle, horsetail, Uva Ursi, hydrangea root, dandelion, and a few others I can't remember. As far as doses go, she said it would be about 1/8 of a human dose for an 8 to 10 pound cat. Does that work for figuring out a dose?

