Sites:
Echinacea - an immune booster: DORG - The Dachshund Magazine On-Line article.Echinacea and Other Herbal Immunostimulants for Pets: Article by Alan Schoen, DVM.
Echinacea angustifolia: Information about Echinacea and its medicinal uses in pets.
Echinacea Monograph: Echinacea Pallida root for pets.
Echinacea Monograph: Echinacea Purpurea herb for pets.
The Original Holisticat (tm) Archives - Echinacea: Archives of discussion group on the use of echinacea in cats.
The Use of Echinacea in Dogs and Cats: Echinacea, known as purple coneflower, may be used to treat bacterial and viral infections in dogs and cats.