???? Knowing the SubstancesAdrafinil and Fladrafinil: Adrafinil is a prodrug for modafinil, while Fladrafinil is its fluorinated analog . This suggests They are really converted into Lively stimulant compounds in your body. Fladrafinil and its related compound Flmodafinil are referred to as "unapproved substances similar to modafinil and adrafinil"