Which substance is often referred to as "Special K"?

The substance commonly referred to as "Special K" is ketamine, which is primarily used in medical settings as an anesthetic. Ketamine has gained popularity in recreational drug use due to its dissociative effects, which can induce feelings of detachment from the body and environment. Its unique characteristics differentiate it from other substances like GHB, MDMA, and Rohypnol, which have very different effects, uses, and classifications. Understanding these distinctions is crucial for recognizing the risks and implications associated with each drug, especially in the context of law enforcement and public health. The colloquial term "Special K" specifically highlights ketamine's association with recreational use, setting it apart from the other substances listed.