Modafinil is unquestionably one of the greatest cognitive enhancer drugs on the market. Modvigil 200 mg Pill is a substitute for Modafinil. It is used to treat ADD/ADHD, Narcolepsy, and shift work sleep disturbance in patients. Modvigil is a generic variant of Modafinil that is less expensive and performs the same chemical function as Modafinil. Modvigil 200 for sale at Smartfinil.