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.
- http://www.peteducation.com/article.cfm?cls=0&cat=1448&articleid=1347

Echinacea - an immune booster
- DORG - The Dachshund Magazine On-Line article.
- http://www.dachshund.org/health_echinacea.html

Echinacea Monograph
- Echinacea Purpurea herb for pets.
- http://neuro.vetmed.ufl.edu/Alt_med/Library/Monograph/echinacea.html

The Original Holisticat (tm) Archives - Echinacea
- Archives of discussion group on the use of echinacea in cats.
- http://www.holisticat.com/echina_arch1.html

Echinacea and Other Herbal Immunostimulants for Pets
- Article by Alan Schoen, DVM.
- http://www.gcci.org/ciah/articles/immunostimulants.html