Propofol

Scientific American: A Common Anesthetic Could Ease PTSD and Other Stress Disorders - Propofol reduces the intensity of traumatic memories

During the past two decades or so, it has become clear that these memories are not fixed and unshakable. They can be manipulated in ways that might ultimately ease the suffering of patients, not just ones with a PTSD diagnosis but also those afflicted by phobias, depression and other stress-related conditions.