WhatDidTheyRegister
Proposed RuleOpen for comment · 29 days left

Schedules of Controlled Substances: Rescheduling of Suvorexant, Lemborexant, and Daridorexant From Schedule IV Into Schedule V

Published
2026-08-11
Comment deadline
2026-09-10
President
Donald Trump
Agencies
Justice Department, Drug Enforcement Administration
Document number
2026-16375

Summary

The Drug Enforcement Administration proposes to transfer suvorexant ([(7R)-4-(5-chloro-1,3-benzoxazol-2-yl)-7-methyl-1,4- diazepan-1-yl]-[5-methyl-2-(triazol-2-yl)phenyl]methanone), lemborexant ((1R,2S)-2-[(2,4-dimethylpyrimidin-5-yl)oxymethyl]-2-(3-fluorophenyl)- N-(5-fluoropyridin-2-yl)cyclopropane-1-carboxamide), and daridorexant ([(2S)-2-(5-chloro-4-methyl-1H-benzimidazol-2-yl)-2-methylpyrrolidin-1- yl]-[5-methoxy-2-(triazol-2-yl)phenyl]methanone) from schedule IV to schedule V of the Controlled Substances Act. If finalized, this action would impose the regulatory controls and administrative, civil, and criminal sanctions applicable to schedule V controlled substances on persons who handle (manufacture, distribute, reverse distribute, import, export, engage in research, conduct instructional activities or chemical analysis with, or possess) or propose to handle suvorexant, lemborexant, and daridorexant.

Public comment is open

Anyone can submit a comment on this proposed rule. The comment period closes in 29 days. Comments become part of the official record and agencies must consider them.

Schedules of Controlled Substances: Rescheduling of Suvorexant, Lemborexant, and Daridorexant From Schedule IV Into Schedule V | WhatDidTheyRegister