: Gamma-butyrolactone is a chemical. People use it as medicine. Be careful not to confuse gamma butyrolactone (GBL) with gam-ma hydroxybutyrate (GHB).
is a hygroscopic colorless, water-miscible liquid with a weak characteristic odor. It is the simplest 4-carbon lactone.
It is mainly used as an intermediate in the production of other chemicals, e.g. methyl–
In humans GBL acts as a prodrug for γ-hydroxybutyric acid (GHB),
and it is used as a recreational CNS depressant with effects similar to those of barbiturates.
Despite serious safety concerns and illegality, people take gam-ma buty-rolactone for improving athletic performance, sleep, and sexual performance and pleasure. They also take it for relieving depression and stress, prolonging life, promoting clear thinking, causing relaxation, and releasing growth hormone. GBL is also used to trim fat and as a body- or muscle-builder. Some people take it as a recreational drug.
Gam-ma buty-rolactone is converted in the body to gamma hydroxybutyrate (GHB) which affects several nerve pathways in the brain.