Just as when all legal routes to alcohol were cut off, beer disappeared and whisky won, when all legal routes to opiates are cut off, Oxy disappears, and heroin prevails. This isn’t a law of nature, and it isn’t caused by the drug—it is caused by the drug policy we have chosen. After the end of alcohol prohibition, White Lightning vanished—who’s even heard of it now?—and beer went back to being America’s favorite alcoholic drink. There are heroin addicts all across the United States today who would have stayed happily on Oxy if there had been a legal route to it.