The Drug Enforcement Administration has issued a final order that temporarily schedules the opioid MT-45 (1-cyclohexyl-4-(1,2-diphenylethyl)piperazine), including its salts, isomers, and salts of isomers, into schedule I pursuant to the temporary scheduling provisions of the Controlled Substances Act. MT-45 is an opioid analgesic drug with pharmacological effects similar to morphine.

As a result, this substance will be subject to the regulatory controls and administrative, civil, and criminal sanctions applicable to schedule I controlled substances on persons who manufacture, distribute, import, export, engage in research or conduct instructional activities with, or possess, MT-45. This order is effective Jan. 12, 2018, and will be in effect for two years, with a possible extension of one year, pending completion of the permanent scheduling process.


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