Modvigil 200 mg is primarily used to promote wakefulness in individuals experiencing excessive daytime sleepiness. It is commonly prescribed for medical conditions such as narcolepsy, a disorder that causes sudden and uncontrollable sleep episodes during the day. Modvigil 200 mg is also used to manage shift work sleep disorder, helping people who work night shifts or rotating schedules stay alert and focused during working hours. Another important use of Modvigil 200 mg is in patients with obstructive sleep apnea, where it helps reduce daytime drowsiness when used alongside other treatments. By supporting mental alertness and concentration, Modvigil 200 mg allows individuals to maintain better productivity and cognitive performance. Its steady and long-lasting effects make it suitable for those who need consistent wakefulness throughout the day without extreme stimulation.