The New Street Drug with Crazy Potency

"This new drug, W-18, is a synthetic opiate that gives a person heroin-like high, buts its 100 times more powerful than fentanyl and 10,000 times more powerful than morphine." It is thought to be produced in China and then shipped to North American through different services, such as FedEx. This drug has been found throughout Canada, however, there have been incidents of it being sold in the United States.

http://www.newser.com/story/223995/m-18-the-new-street-drug-with-crazy-potency.html