Dextromethorphan is a semisynthetic opiate derivative of morphine and acts as a psychedelic drug. DXM is often referred to as Robo Tripping or DM. DXM was approved for use as a cough suppressant in 1958 and subsequently became available in pill form, which then was replaced with cough syrup to “discourage recreational use.” DXM is associated with other dissociatives such as ketamine, PCP, and nitrous.