Avoid using GHB alone. It is important to be extremely careful when experimenting with substances that are currently illegal because the quality and dosage of the material can be completely unknown. The effects of GHB aren't good enough to warrant dangerous behaviour. Smoke a bowl. Eat some salad.
Every individual reacts differently to every chemical.
Substance - Know your Source. Erowid's dosage information is a summary of data gathered from users, research, and other resources and should not be construed as recommendations. Individuals can respond differently to the same dosage. What is safe for one can be deadly for another.