DXM is known as a weak dissociative, and before getting quite a noticeable dissociative effect we must go thru its serotonergic/noradrenergic action. I am thinking about combining novel dissociatives (ephenidine, diphenidine) in small doses with DXM to increase NMDA antagonism with less SERT/NET action from DXM. Have you ever tried this? What are the subjective feelings?