Answer:
It is called Ketamine.
Explanation:
Ketamine, also known as K or Special K, is a dissociative anesthetic usually used on animals. It can produce a sense of detachment, a dreamlike state and a reduced awareness of pain since it is an anesthetic's main function.
High doses of it can cause an out of body experience as well as what is known as a K-hole in which the user feels on a loop that he/she cannot get out of.