Eszopiclone, marketed by Sepracor under the brand-name Lunesta, is a nonbenzodiazepine hypnotic used as a treatment for insomnia. Eszopiclone is the active dextrorotatory stereoisomer of zopiclone, and belongs to the class of drugs known as cyclopyrrolones.

Eszopiclone is a short acting nonbenzodiazepine sedative hypnotic. According to its manufacturer, it has been shown to be safe and effective for the short term treatment of primary insomnia in the elderly and safe in younger adults for 6–12 months. All clinical trials of eszopiclone published so far have been funded by the manufacturer of eszopiclone, Sepracor. There were 43 million prescriptions issued for insomnia medications during 2005 in the USA which generated a total of $2.7 billion for pharmaceutical companies. Eszopiclone (Lunesta) along with other "Z Drugs" including zolpidem (Ambien), zaleplon (Sonata) are the most commonly prescribed sedative hypnotics in the USA.

Eszopiclone is not marketed in the European Union following a 2009 decision by the EMA denying it new active substance status, in which it ruled that eszopiclone was too similar to zopiclone to be considered a new patentable product.

Brandon Choi is an American comic book writer best known as one of the co-creators of the series Gen¹³ which enjoyed high popularity in the middle and late 1990s. He also wrote several other titles for Wildstorm Comics.

Choi was born into a Korean family and grew up in St. Louis, Missouri and is a long-time friend of famed comic book artist and Wildstorm founder Jim Lee.

Comic book characters created: Caitlin Fairchild Zealot Spartan Lord Helspont Christine Trelane