This is an academic paper that identifies and classifies digital technologies being developed, implemented, and evaluated for overdose prevention. These technologies include monitoring vital signs for an overdose, alerting first responders of an overdose, or a combination of both.
Oteo, A., Daneshvar, H., Baldacchino, A., Matheson, C. (2023). Overdose Alert and Response Technologies: State-of-the-art Review. Journal of Medical Internet Research, 25, e40389.