Fentanyl: The dangers of this potent “man-made” opioid - Harvard Health

Fentanyl is a powerful synthetic opioid. It is far more potent — and potentially more dangerous — than heroin and morphine. Overdose deaths related to fentanyl are on the rise. The drug is cheaper than heroin and recently is being used to dilute heroin or substitute for it. Users may be unaware

Tramadol: The Opioid Crisis for the Rest of the World - WSJ

Doctors, Dentists Still Flooding U.S. With Opioid Prescriptions : NPR

Fentanyl: The Dangers Of This Potent “Man-Made” Opioid – EMPOWER COMMUNITY HEALTH, LLC. – 617-729-9111

The Woman Who Cried Pain: Do Sex-Based Disparities Still Exist in the Experience and Treatment of Pain?, Journal of Law, Medicine & Ethics

How is Fentanyl Made? Where Does Fentanyl Come From?

What Is Fentanyl Made Of? Ingredients & Cutting Agents

Tramadol: The Opioid Crisis for the Rest of the World - WSJ

Chromogenic and Fluorogenic Probes for the Detection of Illicit Drugs - Garrido - 2018 - ChemistryOpen - Wiley Online Library

Fentanyl: The dangers of this potent “man-made” opioid - Harvard Health

Health Effects & Risks of Heroin Use

Fentanyl Overdose Signs/Uses/Danger/Treat

Opioid Addiction: A Glossary of Common Terms, Opioid Crisis, Seven Days

Withheld: As fentanyl floods in, can death data keep up?, Wyoming

Is Target-Based Drug Discovery Efficient? Discovery and “Off-Target” Mechanisms of All Drugs