Gamma-hydroxybutyrate (GHB) is a naturally occurring substance in the central nervous system. It is a neurotransmitter that plays a role in regulating sleep, mood, and muscle relaxation. GHB is also synthesized in laboratories and is sometimes used in medical settings to treat conditions like narcolepsy. In addition to its medical uses, GHB has gained notoriety as a recreational drug due to its sedative effects. It can cause euphoria, relaxation, and increased sociability, but it also carries risks, including potential for abuse and overdose. Its use is regulated in many countries due to safety concerns.