The Forgetfulness Potion is a potion which presumably causes the drinker to become forgetful. Professor Severus Snape had first-year students brew it for their final exams in 1992. It also saved Madeye Moddy from Barty Crouch JR..
Appearances
- Harry Potter and the Philosopher's Stone
- Harry Potter and the Philosopher's Stone (film) (Mentioned only) (Deleted Scene)