Vilafinil tablets are a generic form of Provigil (Modafinil). Vilafinil tablets 200mg helps people for narcolepsy disorder. Narcolepsy is a neurological disorder that controls the sleep and wake cycles. Narcolepsy disorder usually begins between the ages of 15 and 25, but this disorder can become apparent at any age. Vilafinil also used for obstructive sleep apnea/hypopnea syndrome, or with narcoleptic patients, and also those who suffer from shift work disorder, also chronic fatigue syndrome, ADHD, fatigue, depression, idiopathic hypersomnia.