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Increase in Fatal Overdoses Linked to Novel Synthetic Opioid N-Propionitrile Chlorphine (Cychlorphine)

NCJ Number
311323
Date Published
January 2026
Abstract

The objective of this Public Alert is to notify public health and safety agencies, law enforcement, first responders, clinicians, medical examiners and coroners, forensic and clinical laboratory personnel, and all other related communities about new information surrounding the emergent novel synthetic opioid N-Propionitrile Chlorphine (also known as “Cychlorphine”)

(Publisher abstract provided.)

Date Published: January 1, 2026