The National Drug Early Warning System (NDEWS) monitors emerging drug use trends to enable health experts, researchers, and concerned citizens across the country to respond quickly to potential outbreaks of illicit drugs such as heroin and to identify increased use of designer synthetic compounds.

National Institute on Drug Abuse (NIDA) funded the Center for Substance Abuse Research (CESAR) at the University of Maryland, College Park, through a cooperative agreement to develop this nationwide public health surveillance system.

NDEWS logo and US map