Modafinil the popular drug for narcolepsy has a long history. It was born when Adrafinil a stimulant drug was developed to treat sleep disorders, narcolepsy. <br /> <br />The main plus point of Adrafinil which was developed in the seventies by a French company Lafon laboratories was the absence of any type of serious side effects like anxiety or recurrent behavior and its users did not get addicted to it. <br /> <br />The short coming of Adrafinil was that it took a long time to show its effects because the body had to metabolize adrafinil and create a new substance which works as stimulant. The French company Lafon Labs decided to market this metabolite as a completely different drug which was named Modafinil. <br /> <br />source- www.modafinil-tablets.com