With a Dec. 15 executive order, President Donald Trump became the first U.S. president to classify a narcotic as a weapon of mass destruction. Trump used U.S. deaths from fentanyl to justify the ...

Researchers are closing in on a new kind of protection against the deadliest drug in the United States: a vaccine that trains the immune system to trap fentanyl before it reaches the brain. If early ...

U.S. fentanyl deaths increased for decades until mid-2023, when they declined sharply. A major contributing factor were China's efforts to control the chemical precursors used to manufacture the ...