Three out of four people addicted to heroin probably started on a prescription opioid, according to the director of the Centers for Disease Control and Prevention. In the United States alone, 16,000 people die each year as a result of prescription opioid overdose. But perhaps the most frightening aspect of the prescription drug epidemic is that it's built on well-meaning doctors treating patients with real problems.

In Drug Dealer, MD, Dr. Anna Lembke uncovers the unseen forces driving opioid addiction nationwide. Combining case studies from her own practice with vital...