Unfortunately "larger doses" in terms of Fentanyl is not that much: https://www.statnews.com/2016/09/29/fentanyl-heroin-photo-fatal-doses/ https://www.statnews.

Unfortunately "larger doses" in terms of Fentanyl is not that much: https://www.statnews.com/2016/09/29/fentanyl-heroin-photo-fatal-doses/ https://www.statnews.com/2016/09/29/fentanyl-heroin-photo-fa...