No data are available on the use of eszopiclone during breastfeeding. Data from the racemate, zopiclone, indicate that occasional use while breastfeeding an older infant should pose little risk to the infant. A safety scoring system finds zopiclone possible to use during breastfeeding,[1] but the infant should be monitored for sedation, poor feeding and poor weight gain.[2] An alternate hypnotic may be preferred, especially while nursing a newborn or preterm infant.