What is fentanyl? The little-known but deadly drug that killed Prince, US news

One of the most dangerous drugs is a synthetic opioid ‘so potent and that even a microgram amount can kill’ – and it’s up to 50 times more powerful than heroin

Painkiller That Killed Prince On The Rise In US, US News

Deadly blue “Mexican oxy” pills take toll on U.S. Southwest – The Denver Post

Hollywood's Sobering New Reality of Fentanyl Lacing – The Hollywood Reporter

Fentanyl - Wikipedia

The Fatal “Blues” — LEB

Opioid epidemic in the United States - Wikipedia

Prince Overdosed on Fentanyl. What Is It? - The New York Times

What is fentanyl? The little-known but deadly drug that killed Prince, US news

Carfentanil Rising: What You Need to Know About the Drug

Viewpoint: While COVID rages, fentanyl quietly leads young deaths - DBT

Prince death: Singer's family sues doctor over opioid addiction

Prince's Counterfeit Pain Pills Likely Came to Him Illegally

What is fentanyl? The little-known but deadly drug that killed Prince, US news