There are many dangers associated with using synthetic drugs that are not prescribed by a physician, such as fentanyl. Dangerous synthetic drugs can also be found in counterfeit pills. Often, teens think they are purchasing Adderall, OxyContin, Percocet, or Xanax pills, but drug dealers are making fake pills with the cheaper, stronger, and deadlier synthetic drug fentanyl. Fentanyl can be up to 50 times more potent than heroin and 100 times more potent than morphine
(See: https://www.cde.ca.gov/nr/el/le/yr22ltr1027.asp).