Ketamine is a short-acting "dissociative" anesthetic due to its ability to separate perception from sensation. It also has an hallucinogenic quality that seems to affect people in very different ways. Ketamine is chemically related to Angel Dust "PCP" and is occasionally administered to people but is more commonly used by vets for pet surgery. Generally street ketamine is most often diverted in liquid form from vets' offices or medical suppliers. Ketamine usually takes 1-5 minutes to take affect, however snorting ketamine takes a little longer at 5-15 minutes. Depending on how much and how recently one has eaten, oral ketamine can take between 5-30 minutes to take affect. The Drug Enforcement Administration reports that the drug can still affect the body for up to 24 hours. The primary effects of ketamine last approximately 30-45 minutes when injected, 45-60 minutes when snorted, and 1-2 hours if used orally.