BUY PROVIGIL ONLINE Without a prescription and save up to 60 % on your first order Provigil (modafinil) is an oral prescription medication that reduces daytime sleepiness in people with narcolepsy, obstructive sleep apnea, and shift work sleep disorder. it reduces extreme sleepiness due to narcolepsy and other sleep disorders, such as periods of stopped breathing during sleep (obstructive sleep apnea). It is also used to help you stay awake during work hours