Modvigil 200 mg is a type of prescription medicine called modafinil which is specifically intended to alleviate the symptoms of narcolepsy, sleep apnea, and shift work sleep disorder. This substance falls under the category of eugeroic medication, signifying its ability to boost brain activity and enhance wakefulness and attentiveness. HAB Pharmaceuticals, which is an India-based pharmaceutical company, manufactures generic Modafinil.