Modvigil 200 mg is a Nootropic medicinal substances that is used to treat excessice daytime sleepiness caused by various sleep disorders like Insomnia, Epileps, Narcolepsy, Shift work sleep disorder, Obstructive Sleep Apnea etc. Medical uses of Modvigil was approved by the FDA and it's standard recommended dose is 200 mg. However before taking the dosage of Modvigil 200 mg it is necessary to comsult a health expert. To know the uses and benefits of Modvigil in details visit here.