GHB
Aliases: aceburic acid, alcover, fantasy, g, gina, liquid x, sodium oxybate, xyrem
Summary
gamma-Hydroxybutyric acid (also known as and 4-hydroxybutanoic acid and GHB) is a depressant substance. It is found naturally as a neurotransmitter and is also a precursor to GABA, glutamate, and glycine in certain brain areas. It acts on the GHB receptor and is a weak agonist at the GABAB receptor.
Dose Information
| ROA | Light | Common | Strong | Heavy |
|---|---|---|---|---|
| Oral BA ~25-30% | 0.5-1.5g | 1-2.5g | 2-3.5g | 3.5-5g+ |
| Oral / Sublingual | 0.5-1.5g | 1-2.5g | 2-4g | 5-10g+ |
Onset, Duration & After-effects
| ROA | Onset | Comeup | Peak | Offset | Total |
|---|---|---|---|---|---|
| Oral | 4-30 min | 10-19 min | 45-90 min | 15-30 min | 1.5-2.5 hrs |
| Oral / Sublingual | 15-30 min | 10-20 min | 30-90 min | 1-2 hrs | 1.9-4.3 hrs |
| Rectal | 10-20 min | 5-15 min | 30-90 min | 1-2 hrs | 1.8-4.1 hrs |
| Insufflated (Irritating) | 5-15 min | 5-10 min | 30-90 min | 1-2 hrs | 1.7-3.9 hrs |
Tolerance
Tolerance Decay
Tolerance and dependence patterns are inferred from clinical withdrawal reports and community harm‑reduction guidance. Consecutive‑day or round‑the‑clock dosing rapidly escalates tolerance and produces severe withdrawal. Recovery of baseline sensitivity likely takes 1–2+ weeks after repeated daily use. Data quality: mixed clinical case series plus community reports; treat as conservative guidance.
Cross-Tolerances
Effects
Aggregated from 193 Erowid and 21 Bluelight experience reports