Opinion | Three Mothers Plea to the F D A : Save Our Children nytimes.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from nytimes.com Daily Mail and Mail on Sunday newspapers.
Millions of U.S. drug users now are addicted to several substances, not just opioids like fentanyl and heroin. The shift is making treatment far more difficult.