???? Knowledge the SubstancesAdrafinil and Fladrafinil: Adrafinil is actually a prodrug for modafinil, while Fladrafinil is its fluorinated analog . This implies They may be transformed into Energetic stimulant compounds in the body. Fladrafinil and its associated compound Flmodafinil are called "unapproved substances just like modafinil and adrafi