What are the two main types of dissociative anesthetics?

The two main types of dissociative anesthetics are PCP (phencyclidine) and ketamine. These substances are known for their ability to produce feelings of detachment from reality, which is a hallmark of dissociative anesthetics.

PCP was originally developed in the 1950s as an anesthetic but was discontinued due to severe side effects. It's often associated with a range of psychoactive effects, including hallucinations and altered sensory perception. Ketamine, on the other hand, is still used in medical settings for anesthesia, particularly for its analgesic properties, and has gained attention for potential therapeutic uses in mental health conditions.

Other options presented involve substances that either do not primarily function as dissociative anesthetics or have different classes of effects. For example, LSD is a hallucinogen but not classified as a dissociative anesthetic, while MDMA is known for its empathogenic effects. DXM (dextromethorphan), while having some dissociative qualities at high doses, is more commonly recognized as a cough suppressant rather than a mainstream dissociative anesthetic like PCP or ketamine.