HAHAHA! Yeah, with that kind of name, that's the first thing I thought of when I saw it, too. So this potion apparently helps werewolves maintain their human mind when they're transformed during the full moon. Not sure if that's the proper terminology for it, but yeah. It's kinda complicated because it seems to take forever to brew, and it's really temperamental from what I gathered, and like that wasn't enough... then the person has to drink it at the same time every day for the whole week before the full moon. But it pretty much helps them keep their mind like I said before, and let them mostly sleep through it, which is kinda cool.