As rampant as the heroin epidemic has become, there is something new and even more dangerous.
A drug 80 to 200 times more potent than heroin is showing up all over Chicago. Overdoses from a synthetic form of fentanyl are being reported in most collar counties.
Users have been combining heroin and fentanyl for years. Fentanyl is much stronger than heroin and gives you a better high. But officials say there is a new form of fentanyl that may be catching users off guard.