Actually, no. They have been using Cannabis roots for other medicines and various cures for years and found that the root actually off sets and deletes THC in your system. Check out this article about it as it's quite interesting.
The CBD Cannabis Root Experience | twicebaked in ...
twicebakedinwashington.com/2013/.../the-cbd-cannabis-root-experience/
Buried Treasure: Hemp Roots | Cannabis.infowww.cannabis.info/us/.../10003090-buried-treasure-hemp-roots&hloc=1