Provigil is an FDA-approved medicine that is mainly used for narcolepsy. Its generic name is modafinil. It is a CNS stimulant. Provigil reduces extreme sleepiness due to narcolepsy and sleep apnea. For those who want to wake up in the daytime or during working hours, the Provigil helps them. Provigil makes your wakefulness. Provigil may also be used for the purpose not listed in the medication guide. It will make your sleep routine perfect and give you a healthy lifestyle. Provigil can taken by adults only(i.e. 17 years or older). You can take 200mg or 100mg once a day in the morning. If more doses are needed then the doctor advised to increase. Those who have kidney diseases, heart diseases pregnant ladies, or those trying to get pregnant do not take the medication