So apparanly there's a drug called scopolamine (nicknamed devil's breath) that blocks neurotransmitters that carry information to the part of the brain that stores information. It also makes you more open to suggestions (in other words it destroys your free will...).
It's a odorless and tasteless powder.
"Holding anger is a poison. It eats you from inside. We think that hating is a weapon that attacks the person who harmed us. But hatred is a curved blade. And the harms we do, we do to ourselves."-Mitch Albom