cannabidiol Missouri lawmakers pass cannabis extract bill By Associated Press • May 1, 2014 LancerenoK / Flickr Missouri lawmakers have given final approval to a bill that would allow use of a cannabis extract by people whose epilepsy isn't relieved by other treatments. House OKs use of cannabis extract for epilepsy By Associated Press • Apr 23, 2014 LancerenoK / Flickr The Missouri House has endorsed legislation allowing use of a cannabis extract by people whose epilepsy is not relieved by other treatments.