What is ketamine and is it dangerous?
Ketamine is a dissociative anesthetic that is abused for its hallucinogenic effects. It works as an NDMA receptor antagonist in humans. In supervised medical settings, it is generally safe. However, in recreational situations it can be dangerous. One risk is that users may accidentally harm themselves while impaired. Additionally, it can be fatal in the case of an overdose, but this is fairly uncommon. Ketamine is one of the more addictive hallucinogens, and repeated use has been associated with cognitive deficiencies.