What is Modafinil? A wakefulness drug called modafinil is used to treat narcolepsy, shift work sleep disorder (SWSD), and obstructive sleep apnea (OSA) patients who have excessive daytime drowsiness. It was first used in France to treat narcolepsy and was created in the 1970s by Michel Jouvet, a French neuroscientist. In 1998, the US Food […]