Dissociatives are a class of drugs that alter a person's perception of reality, often leading to feelings of detachment from the body and surroundings. Common examples include substances like ketamine, PCP, and DXM. These drugs can produce effects such as hallucinations, a sense of floating, and changes in sensory perception. Dissociatives work by affecting neurotransmitters in the brain, particularly glutamate, which plays a role in memory and perception. While some dissociatives are used in medical settings, such as ketamine for depression, recreational use can lead to dangerous side effects and potential addiction.