Explore the interactive visualization below to learn more about overdose deaths caused by narcotics and hallucinogens from 1999 to 2014. The vertical axis shows the number of people who died from a drug-related overdose in a year. The colored bands represent different types of drugs. "Other opioids" include morphine, oxycodone, and hydrocodone. The "other synthetic narcotics" category includes fentanyl, propoxyphene, and meperidine. Click on the colored bands to see the data broken down by drug type. Click on the arrows above the chart or the age groups at the bottom to see the data broken down by age.