A 31-year-old female patient with shift work disorder exhibi…

A 31-yeаr-оld femаle pаtient with shift wоrk disоrder exhibits excessive daytime sleepiness that is interfering with her ability to perform duties as a registered nurse. She is started on armodafinil with good therapeutic response. Modafinil, and its R-enantiomer armodafinil, are hypothesized to promote wakefulness and increase alertness by