Taxus Brevifolia help avoid methastasis during chemotherapy and where to buy it.

I found the Taxus Brevifolia tincture on amazon and ebay here is a link.
Tincture of Taxus Brevifolia http://cgi.ebay.com/Montana-Made-Yew-Tip-Tincture-Taxus-brevifolia-/290298448418
About Taxus Brevifolia (chinwood, common yew, paclitaxel, docetaxol, pacific yew, western yew, with contains taxol, an extract form the conifer tree, wich helps prevent metastasis when getting chemotherapy.
here is a great website which contains great info about it http://www.healthline.com/natstandardcontent/yew