Preview this link from the City of Baltimore Health Department for more information regarding the facts about Fentanyl:

http://health.baltimorecity.gov/Fentanyl

Also, check out these videoes on Naloxone delivery from the Health Commissioner, Dr. Leana Wen:

https://www.youtube.com/watch?v=dYKKnje-Abc&feature=youtu.be

https://www.youtube.com/watch?v=6Pi20UpnlkA&feature=youtu.be