Modalert 200 mg is a prescribed medication that is used to treat excessive daytime sleepiness associated with sleep disorders like Narcolepsy, Insomnia, Obstructive Sleep Apnea etc. Narcolepsy often causes overwhelming daytime drowsiness. Modalert 200 mg restore the natural sleep cycle of a person and treat Narcolepsy. Medical uses of Modalert was approved by the FDA and it's standard recommended dose is 200 mg https://healthnaturo.com/product/Modalert200mg/