D-Cycloserine
D-Cycloserine (DCS) is being trialed as an adjuvant to conventional exposure-based treatments for anxiety disorders. The psychotropic responses are related to D-Cycloserine's action as a partial agonist of the neuronal NMDA receptor for glutamate and have been examined in implications with sensory-related fear extinction in the amygdala.
Read more about this topic: Extinction (psychology)