GBL
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Also known as GBL, gamma-Butyrolactone
Fatal overdose may occur when GABAergic substances are combined with other depressants such as opiates, benzodiazepines, barbiturates, gabapentinoids, thienodiazepines or alcohol.[1] It is strongly discouraged to combine these substances, particularly in common to heavy doses.
Addiction potential
highly physically and moderately to highly psychologically addictive
Tolerance
full tolerance within several days of continuous use; baseline after 7 - 14 days
Oral
Route dataPsychonautWiki
| Threshold | Light | Common | Strong | Heavy |
|---|---|---|---|---|
| 0.3 mL | 0.3–0.9 mL | 0.9–1.5 mL | 1.5–3 mL | 3 mL+ |
03.75 mL
LightCommonStrongHeavy
| Onset | 3–10 minutes |
|---|---|
| Come-up | 5–15 minutes |
| Peak | 30–45 minutes |
| Offset | 15–30 minutes |
| Total | 1–2 hours |
| After-effects | 1–3 hours |
OnsetCome-upPeakOffset
Caution / uncertain
Plan when to take GBL — see where onset, peak and comedown land on the clock
Plan a dose of GBL
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Source: PsychonautWiki — GBL ↗
Fact-sheets from PsychonautWiki. Harm-reduction reference only — not medical advice.