ABSTRACT
A cursory glance at the popular literature or a general Internet search reveals that there is an increasing interest in the use of herbal products for domestic pets and horses. This mirrors the same interest for using, and self-medicating with, complementary and alternative medicine (CAM) among humans. As with humankind, there is evidence that animals have been self-medicating for millennia (Huffman and Hirata, 2004), and in some cases humans may have started to use certain plants on observing animals using them to good effect (Huffman and Seifu, 1989).
