Novel Psychoactive Substances: Pyro
The Legislative Analysis and Public Policy Association is monitoring the emergence of novel psychoactive substances appearing on the illicit drug market in the United States. The term “novel” does not denote a new, never-before-seen substance but rather a substance that is newly available in the drug market. This fact sheet, examines pyro, a relatively new high potency synthetic opioid increasing in prevalence in the U.S. Pyro belongs to an opioid subclass of NPS called 2-benezylbenzimidazoles, or nitazenes, and is structurally similar to etonitazene, a synthetic opioid that is nationally and internationally controlled. N-pyrrolidino etonitazene is not described or mentioned in any medical literature or patents, meaning that it is a truly “novel” NPS and likely developed independently from the pharmaceutical industry. Researchers believe that N-pyrrolidino etonitazene is coming to the U.S. via purchases on the dark web and is likely being produced in China. N-pyrrolidino etonitazene can be found in powder form or pressed into pills to resemble other substances. Studies estimate that N-pyrrolidino etonitazene is over 800 times more potent than morphine and 20-40 times more potent than fentanyl. Like other opioids, N-pyrrolidino etonitazene use can potentially cause fatal respiratory depression in the person ingesting the drug. However, because...