Modvigil 200 is a nootropic drug to deal with sleeping disorder like Insomnia, Narcolepsy, Obstructive Sleep Apnea, Shift work sleep disorder etc. Compounds of Modvigil 200 mg improves cognitive function in the brain and promotes wakefulness to users. It also helps to improve concentration, focus and memory power to users. Modvigil 200 mg is a FDA approved drug and popular amongst other nootropic drug. Here is a detailed description about this nootropic drug, visit here.