Nitazenes found in 5 overdose deaths in Philly – here’s what they are and why they’re so deadly

The Philadelphia Medical Examiner’s Office found that nitazenes, a synthetic opioid up to 40 times more powerful than fentanyl, were connected to at least five overdose deaths in Philadelphia in…

FDA approval of over-the-counter Narcan is an important step in the effort to combat the US opioid crisis

On March 29, 2023, the U.S. Food and Drug Administration approved Narcan for over-the-counter sale. Narcan is the 4-milligram nasal spray version of naloxone, a medication that can quickly counteract…

What is xylazine? A medical toxicologist explains how it increases overdose risk, and why Narcan can still save a life

The White House officially designated fentanyl adulterated with xylazine as an emerging threat to the U.S. on Apr. 12, 2023. Earlier, the U.S. Drug Enforcement Administration issued a warning on…