This seems like a nice end-around for the argument that weed isn't medically pure. I remember one of the arguments against medical marijuana was that CBD and TH

This seems like a nice end-around for the argument that weed isn't medically pure. I remember one of the arguments against medical marijuana was that CBD and THC aren't the only active chemicals that weed is producing. In this case you can create only the chemicals you want when conducting trials and manufacturing pharmaceuticals.