Noun
eszopiclone (uncountable)
English Wikipedia has an article on:eszopicloneWikipedia
The active dextrorotatory stereoisomer of zopiclone, used as a sedative to treat insomnia.
Eszopiclone was clastogenic in and chromosomal aberration) assays in mammalian cells. Source: Internet
Eszopiclone may be better in that respect. Source: Internet