GHB

Gamma-hydroxybutyric acid, or GHB, is a psychoactive drug that naturally occurs in the brain as a neurotransmitter. It has been used medically as an anesthetic and for treatment of narcolepsy. When used recreationally, users report effects similar to alcohol or MDMA and, like MDMA, it is often used in clubs and at raves. In rat studies, GHB has shown to be habit forming, and some users report feeling withdrawal symptoms after stopping use.