Narcolepsy, OSA, and idiopathic hypersomnia are treated with modalert 200mg, which includes modafinil.** By activating brain chemicals that govern the sleep-wake cycle, it keeps people awake and concentrated throughout the day. Modalert 200 reduces daytime sleepiness, improving quality of life for hypersomnia sufferers. Because it lasts 10–12 hours, it is commonly taken in the morning. It reduces symptoms of hypersomnia, making it easier to work and maintain regular routines. Medical supervision is required with Modalert 200. Usually moderate, side effects include headaches, nausea, and anxiety. To prevent reliance or tolerance, monitor long-term usage. For hypersomnia, Modalert 200 may work best with lifestyle changes including regular sleep patterns and caffeine reduction. Talk to a doctor about the best therapy.