They’re pills that create a sort of temporary forgettingness. So if somebody finds out how you do a trick, you just give ’em one of these, and they forget the whole thing. It’s a mainstay of the magician’s toolkit, like how clowns always have a rag soaked in ether.
Also known as: Flunitrazepam
To make Rita forget that she was kidnapped, she was given a Forget-Me-Now