Opioid Addiction Treatment With Buprenorphine and Methadone. NYC Department of Health.
"...Over 80% of drug overdoses in the city involve opioids, which include heroin and prescription painkillers, such as: Heroin, Morphine, Oxycodone, Hydrocodone, Fentanyl. Recently fentanyl, a drug that is 50 times more powerful than heroin, has been showing up in heroin, cocaine, pills marked as Xanax® and other drugs. Fentanyl was involved in nearly half of the overdose deaths in NYC in 2016...."