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A euphoric depressant which is prescribed as a sleep aid and sometimes to help with Alcohol detox. Also used as a recreational depressant, as a non-toxic alternative to Alcohol. Despite not having Alcohol's toxicity it is risky due to among other things inconsistent concentration in commonly sold solution form, and can be very dangerous if taken with other depressants.

Oral

Route dataTripSit

ThresholdLightCommonStrongHeavy
0.5–1.5 g1–2.5 g2–3.5 g3.5 g+
04.375 g
LightCommonStrongHeavy
Onset20–60 minutes
Total1.5–2.5 hours
After-effects2–4 hours
OnsetCome-upPeakOffset

Dangerous interactions

Plan when to take GHB — see where onset, peak and comedown land on the clock

Source: TripSit — GHB ↗

Fact-sheets from PsychonautWiki. Harm-reduction reference only — not medical advice.