What makes fentanyl so deadly and how can people prevent overdoses?

Synthetic opioids, primarily the powerful drug fentanyl, are the main driver of sky-high overdose deaths in the US. CNN Medical Analyst Dr. Leana Wen explains what makes fentanyl so dangerous and what can be used to reverse its effects.

Public Health Services of San Joaquin County

What is fentanyl and why is it behind the deadly surge in US drug

Why fentanyl is deadlier than heroin, in a single photo - STAT

Fentanyl: America's struggle to contain a deadly drug

Chart: Fentanyl Fuels Surge in U.S. Drug Overdose Deaths

Synthetic Fentanyl Deaths Rise in Americans Opioid Epidemic

Overdose Prevention Office of Addiction Services and Supports

Fentanyl Information and Resources

This photo shows exactly why Fentanyl is deadlier than heroin