Why the FDA Is High on a Marijuana Drug

GW Pharmaceuticals Plc grows about 20 tons of cannabis annually at greenhouses the size of football fields in an undisclosed corner of the English countryside. The plants, genetically modified to remove the psychoactive properties, are used to produce Epidiolex, a prescription drug for children with severe epilepsy. The U.S. Food and Drug Administration approved the treatment on June 25, making it the first prescription medicine derived from cannabis permitted to be sold in the U.S.