<unk>  is used for medical purposes in the treatment of narcolepsy and, more rarely, alcoholism, although there remains uncertainty about its efficacy relative to other pharmacotherapies for alcohol dependence. It is sometimes used off-label for the treatment of fibromyalgia.<unk>  is the active ingredient of the prescription medication sodium oxybate (Xyrem). Sodium oxybate is approved by the U.S. Food and Drug Administration for the treatment of cataplexy associated with narcolepsy and excessive daytime sleepiness (EDS) associated with narcolepsy.<unk>  has been shown to reliably increase slow-wave sleep and decrease the tendency for REM sleep in modified multiple sleep latency tests. The FDA approved labeling for sodium oxybate suggests no evidence<unk>  has teratogenic, carcinogenic or hepatotoxic properties. Its favorable safety profile relative to ethanol may explain why<unk>  continues to be investigated as a candidate for alcohol substitution.
Gamma-Hydroxybutyric acid
Gamma-Amino-beta-hydroxybutyric acid
Choline
Beta-Hydroxy beta-methylbutyric acid
Phenylacetic acid
Butyric acid
Arachidonic acid
Glutamate 