Modafinil 200 mg is a prescription medication that helps to deal with excessive daytime sleepiness associated with sleep disorder such as Insomnia, Epilepsy, Narcolepsy, Shift Work Sleep disorder etc. It is a eugeroic group of drug that promotes wakefulness and alertness in users. Medical use of Modafinil was approved by the FDA for it's efficacy and affordability. It works by affecting certain neurotransmitter in the brain and promote wakefulness and alertness in users. To know the detailed use of Modafinil visit here.