Bing found the following results
The Top 15 Most Dangerous Drugs - Addiction Center
The 25 most dangerous drugs - USA TODAY
The 10 Deadliest Drugs in America, and How They Affect People
Fentanyl: The Most Dangerous Illegal Drug in America | RAND
What to Know About Fentanyl and Why It’s So Dangerous - The New York Times
Know the Risks of Using Drugs | SAMHSA
Drug addiction (substance use disorder) - Symptoms and causes
Fentanyl deaths rise, overdoses spike: Here's why drug is so dangerous
Drugs of Abuse - 2022 - DEA.gov
Drug Abuse & Addiction: Effects on Brain, Risk Factors, Signs - WebMD