Lunesta causes cancer.

  Public Citizen, a watchdog consumer group, has expressed concern about possible cancer risks with the newly approved sleeping pill, Lunesta (eszopiclone).

  This is based on findings of tumors in lab animals and DNA damage in early studies. There were also some isolated reports of breast and skin cancers in human clinical trials with Lunesta.

  The FDA looked at this data before approval of Lunesta...and concluded that there's no proof of a cancer risk. They say the incidence of cancer with Lunesta ISN'T any higher than what's expected in the general population.