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| Trade names | Junoenil |
| Other names | EVT-201; EVT201 |
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| Formula | C17H17ClN6O2 |
| Molar mass | 372.81 g·mol−1 |
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Dimdazenil, sold under the brand nameJunoenil, is amedication used in the treatment ofinsomnia inChina.[1] It is abenzodiazepinederivative and a partialpositive allosteric modulator of the GABAA receptor[2] with two- to four-fold higher functionalaffinity for theα1 subunit relative to theα2,α3, andα5 subunits.
Dimdazenil shows effectiveness in the treatment ofinsomnia, but has lessintrinsic activity in comparison to currently-marketed benzodiazepines and theZ-drugs;[3] however, it is thought that the lower efficacy may result in fewerside effects, such asmotor incoordination.[3] In China, dimdazenil is approved for short-term treatment of insomnia.[4]
Dimdazenil was originally developed byRoche, based onpreclinical data, as a non-sedatinganxiolytic, but was found to producesedation in humans inphase Iclinical trials. For this reason, it was subsequently licensed toEvotec, which is now developing it for the treatment of insomnia.[3] By 2007, dimdazenil completedphase II clinical trials for this indication, with positive findings reported.[5] In China, the drug was developed by Zhejiang Jingxin Pharmaceutical.
