how long does GHB stay in your system?

Answer 1

1-2 days

Answer 2

This seems to be a function of the amount of GHB (gamma-hydroxybutyrate) that is taken. The drug is metabolized in the liver and the half-life of the drug is not linear with the dose.

New methods can detect GHB in either blood (serum) or urine for several days after a typical dose and up to a week after stronger doses.

You should also know that often GHB is often received as a chemical (usually a polymer) which needs to be broken down to produce the active GHB. In these cases, the GHB will be produced for as long as one to two days and this will extend the detection of GHB in the human body fluids.