Modafinil is same as provigil available in different brands and one of the most common is Modwake manufactured by Hab Pharma. Modafinil is used to reduce excessive sleepiness due to narcolepsy and sleep apnea. Narcolepsy is the condition that causes the daytime sleepiness. Modafinil tablet will improve your narcolepsy hence Modafinil will help you to stay awake. Adults who are suffering from narcolepsy can take this tablet.