We know that the cost of the health system responding to various substances runs into the hundreds of millions of dollars. If you add up the staff time, time taken for equipment to attend to them, the length of stay they might have in the hospital, the use of other countervailing drugs, you might say, and other substances that they have to take in order to clean their systems up and clean themselves out, there's a cost to that. If we can do something that not only keeps people who consume these substances safe but prevents them from having to draw on the stretched resources of our public health system, then that is a good thing.