Speaker: David Winston. Myths, facts and theory are examined in this presentation. Types and categories of interactions are described, along with levels of evidence. Extensive reports of interactions involving a variety of botanicals are evaluated. Some of the herbs included in the discussion are ginseng, cat's claw, chaste tree, ginkgo, guggul, hawthorn and many others. The proceedings article is a helpful reference, since it covers the topic in more detail than the lecture time allows.