Modalert 200, which contains modafinil, is often given to treat narcolepsy, a neurological disease that causes daytime drowsiness, abrupt sleep episodes, and sleep-wake cycle disturbances. Modafinil reduces daytime drowsiness and promotes alertness to treat narcolepsy. It raises alertness without the jitters of stimulants by affecting brain neurotransmitters. Taking Modalert 200 mg as recommended may help narcolepsy patients remain awake and aware throughout the day. Due to dose and adverse effects, Modalert 200 must be used under medical supervision. To maximize treatment results, narcolepsy management may include lifestyle changes and medical checkups.