GHB is a transparent, slightly viscous liquid. Gamma-hydroxybutyric acid was formerly used as an anesthetic and is still used as a remedy for sleep disorders.
It is often mixed with non-alcoholic drinks and can be detected in your saliva, blood or urine for up to 12 hours. GHB starts working after 5 to 30 minutes. The effects last for about 3 hours.
It has a relaxing effect, users can feel euphoric, have less inhibitions and are often sexually aroused faster
There are many risks associated with taking GHB. You can become unconscious (go out), in very severe cases your breathing stops. You can also get nauseous, have to vomit
Your memory can also deteriorate, as can your concentration.
In the long term, GHB is addictive and going out a lot can cause brain damage.
Source: Jellinek