A common drug for treating sleep disorders such narcolepsy, obstructive sleep apnea, and shift work sleep disorder is Modalert 200mg. Modafinil, its active component, helps people stay active throughout the day by encouraging wakefulness and improving alertness. Many people prefer Modalert 200 since it has a reduced risk of dependence than traditional stimulants. When taken as prescribed, it enhances cognitive function without producing serious adverse effects.