Zopiclone Zopiclone, sold as Imovane, Zimovane Zopinox in Europe and Canada and Amoban in Japan, and as the eszopiclone analogue Lunesta in the United States, is a novel hypnotic agent used in the treatment of insomnia. Zopiclone is a controlled substance in the United States, Canada, Japan and some European countries, and may be illegal to possess without a prescription.Zopiclone is known colloquially as a "Z-drug".
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