FDA Warns Against the use of supplements containing GBL, GHB, or BD
Certain supplements being sold for bodybuilding, weight loss and sleep
inducement pose a significant public health hazard, according to the FDA
(Food and Drug Administration). These products are chemically related to
gamma butyrolactone (GBL), gamma hydroxybutyric acid (GHB), and 1,4
butanediol (BD), and can cause dangerously low respiratory rates,
unconsciousness/coma, vomiting, seizures, bradycardia and even death.

GBL, GHB and BD have been linked to at least 122 serious illnesses
reported to the FDA, including three deaths. These agents, which are powerful hypnotic substances known to produce significant and potentially
dangerous sedative effects, also increase the effects of alcohol and are even more dangerous when consumed with other central nervous system depressant drugs.

While these products are listed as "party drugs" on internet sites, advertised in muscle-building magazines, and sold in health food stores as dietary supplements, the FDA considers them to be unapproved new drugs and has confiscated many of these products to prevent their sale to consumers and any further illnesses or deaths. GHB, which is legally available in the United States only as an investigational new drug for specified purposes (thus, it cannot be legally marketed), has been implicated as a "date rape" drug.

Look on the ingredient list for substances such as: 1,4 butanediol, tetramethylene glycol, gamma butyrolactone or 2(3H)-Furanone di-hydro. In
addition, health authorities believe manufacturers are renaming their products and substituting BD for GBL - however, the effects of ingesting BD are as dangerous as those of GHB and GBL. Some of the products which may contain these substances include: Longevity, Revivarant, G.H. Revitalizer,
Gamma G, Blue Nitro, Insom-X, Remforce, Firewater and Invigorate, Revitalize Plus, Serenity, Enliven, GHRE, SomatoPro, NRG3, Thunder Nectar and Weight Belt Cleaner.

FDA cannot ensure the effectiveness or safety of any product for sleep
inducement other than FDA approved drugs. People who use unapproved sleep inducement products, especially without proper medical supervision, may be unnecessarily exposing themselves to serious harm.