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U-47700 (Pink)

See also


  1. Final Order: Placement of Butyryl Fentanyl and U-47700 Into Schedule I. United States Drug Enforcement Agency (DEA). Federal Register Volume 83, Number 77. Accessed July 25, 2021.
  2. Rudd RA, et al. Increases in Drug and Opioid Overdose Deaths — United States, 2000–2014. Morbidity and Mortality Weekly. Centers for Disease Control and Prevention (CDC). Accessed July 25, 2021 at
  3. DEA Temporarily Bans Synthetic Opioid U-47700 ("Pink"), Linked to Nearly 50 Deaths. National Institute on Drug Abuse (NIDA). November 15, 2016.
  4. DEA Schedules Deadly Synthetic Drug U-47700. Accessed July 25, 2021 at
  5. Armenian P, et al. Fentanyl and a Novel Synthetic Opioid U-47700 Masquerading as Street “Norco” in Central California: A Case Report. Accessed July 25, 2021 at
  6. Fentanyl-Laced 'Norco' Is Lethal, Report Warns. July 29, 2016.
  7. U-47700: Everything You Need to Know About Deadly New Drug. Rolling Stone Magazine. Accessed July 25, 2021 at
  8. Synthetic opioid nicknamed ‘pink’ blamed for deaths of two 13-year-old Utah boys. The Washington Post. Accessed July 25, 2021 at
  9. A dangerous mix of opioids called ‘gray death’ is causing overdoses in parts of the US. Science. Business Insider. Accessed July 25, 2021 at
  10. Alzghari SK, Fleming SW, Rambaran KA, et al. U-47700: An Emerging Threat. Cureus. 2017;9(10):e1791. Published 2017 Oct 22. doi:10.7759/cureus.1791
  11. Domanski K, Kleinschmidt KC, Schulte JM, et al. Two cases of intoxication with new synthetic opioid, U-47700. Clin Toxicol (Phila). 2017 Jan;55(1):46-50. doi: 10.1080/15563650.2016.1209763. Epub 2016 Jul 19. PMID: 27432224.
  12. Rambaran KA, Fleming SW, An J, et al. U-47700: A Clinical Review of the Literature. J Emerg Med. 2017 Oct;53(4):509-519. doi: 10.1016/j.jemermed.2017.05.034. Epub 2017 Sep 12. PMID: 28911989.




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