DEA Finalizes Import, Export Restrictions for 9 Fentanyl-Related Substances

The Drug Enforcement Administration is listing nine fentanyl-related substances -- meta-fluorofentanyl, meta-fluoroisobutyryl fentanyl, para-methoxyfuranyl fentanyl, 3-furanyl fentanyl, 2′,5′-dimethoxyfentanyl, isovaleryl fentanyl, ortho-fluorofuranyl fentanyl, alpha′-methyl butyryl fentanyl, and para-methylcyclopropyl fentanyl -- under Schedule I of the Controlled Substances Act, it said in a final rule released Dec. 6. The nine substances had already been temporarily controlled under a 2018 order that's set to expire Dec. 31, 2024. The permanent listing takes effect Dec. 7.