[information taken from Erowid]
GHB (gamma hydroxybutyrate) is a naturally occurring component of human cells. It is used most commonly in the form of a chemical salt (Na-GHB or K-GHB) which is taken recreationally as a depressant with effects quite similar to those of alcohol. These salts are powders but are most often mixed with water for recreational use. While GHB is most notorious for a few cases where it has been given to unsuspecting individuals, it is more commonly used as a recreational intoxicant like alcohol, as a sleep-aid, or as a supplement by body-builders.
One of the major concerns with GHB is that the recreational dosage range is narrow and even small overdoses can cause temporary unrousable unconsciousness (a type of coma) and large overdoses (poisonings) can be life-threatening. There are two other chemicals which are used as GHB equivalents: 1,4-butanediol and gamma butyrlactone.
** topic of "rape drug"
Introduction
Rape and sexual assault are problems every society needs to learn to deal with. Sexual assaults involving the use of a psychoactive substance have their own issues and problems. Alcohol is by far the most common substance involved in sexual assaults. However, any substance which impairs the ability of a person to adequately respond to a situation or defend themself if the need arises, could be used in the same way. Other substances sometimes associated with substance related sexual assaults include Rohypnol, GHB, Ketamine, and Mickies (sometimes used as a general word to describe any substances added to a drink to knock a person out...also used to describe chloral hydrate).
These substances are sometimes given to an unsuspecting person without their knowledge, usually through the adulteration of liquid beverages (usually alcoholic beverages). This practice has been linked to cases of sexual assault or date rape in cases where the victim is assaulted after being rendered unconscious and/or immobilized by the drug.
*** info on "1-4 b"
http://www.erowid.org/chemicals/14b/14b.shtml
there r many other places u can view information, and including on bluelight if u were to go into the archives...
as a mod in drug faq, or read around b4 u post.
another great source is:
http://www.lycaeum.org/
as well as erowid.
I hope i shed some light.