Opioid Data Analysis and Resources | CDC's Response to the Opioid Overdose Epidemic

CDC’s Injury Center looks at deaths and nonfatal overdoses for four categories of opioids:

Natural opioids (including morphine and codeine) and semi-synthetic opioids (drugs like oxycodone, hydrocodone, hydromorphone, and oxymorphone)
Methadone, a synthetic opioid
Synthetic opioids other than methadone (drugs like tramadol and fentanyl)
Heroin, an illicit (illegally made) opioid synthesized from morphine that can be a white or brown powder, or a black sticky substance.