A new wave of concern has spread across the United States over multi-colored "rainbow fentanyl" pills, powders and blocks -- that look similar to candy or sidewalk chalk -- being sold and used in ...

Rainbow-colored fentanyl has made its way to the Tri-Cities for the first time — and police are concerned with Halloween so close. While some harm reduction experts and toxicologists are skeptical ...

West Virginia law enforcement officials are sounding the alarm after the discovery of "Rainbow Fentanyl" – multi-colored versions of the deadly drug that resembled candy – in a city that is home to ...