To understand this week’s story we first have to understand how habit-forming medicines are currently prescribed in the U.S. The Drug Enforcement Agency divides potentially addictive substances into different schedules. Schedule II controlled substances are prescription medicines that have a high potential for abuse and severe dependence. They include all the opiate (narcotic) pain medicines, like morphine, oxycodone, and fentanyl. These medications must be prescribed on a paper prescription...