. >> dr. cilio is testing as pooh single compound.harmacological compound is made by request companies in canada. low levels of thc and other coma cannabinoids. >> we decided to use pure cannabidiol. we thought it was safer. we know how much we are giving so we can evaluate the effect. and also, we thought it was the time to do tonight a way that was more scientifically sound. >> how do you feel about the gw trials that are happening here in the u.s? >> the worst thing that could happen is for that product to be too different from this one. and if it doesn't work and then the scientific and medical communities come back and say, oh, we already looked at that, so just pass it by, that's the worst thing that can possibly happen. >> people tend to see only possible benefits. and i understand, because when you have a child with intractable epilepsy your hope never ends but people have to understand that risks are associated. we want to trust the drug in a scientifically sound way to give answer he more than just excitement and hope. >> bu