Complete dosage information for GBL — threshold, light, common, strong, and heavy dose ranges across 1 route of administration.
Full GBL profileImportant Safety Notice
Dosage information is for harm reduction purposes only. Individual sensitivity varies greatly. Always start with the lowest effective dose and work your way up slowly. Never eyeball doses — use a milligram scale.
LD50 is above the active dosage, and there is no danger of acute toxicity. However, it can become dangerous when used as a recreational drug, abused, or in combination with other drugs. There have been many negative reports from recreational users who have overdosed, combined GBL with alcohol or other drugs, or accidentally dosed themselves unexpectedly or way above the common dosage range. To avoid a possible overdose of GBL, it is important to start with a low dose and work your way up slowly by increasing the dosage in small increments. One should best use a glass bottle with an integraded 1ml pipette to exactly measure their dosages. Accidental ingestions of GBL have also occurred due to inadequate storage methods. If GBL is put into a clear liquid, glass, or bottle, it can be easily mistaken for water. It is recommended to clearly label your GBL in writing and dye the liquid with blue food coloring so it no longer resembles a drinkable beverage. It is also recommended to store your GBL in a container that no one would drink out of. It is strongly recommended that one use harm reduction practices when using this drug. - Neurotoxicity GBL itself may also produce neurotoxic effects, in addition to the effects of GHB, to which it is converted to by the body. , and alcohol.]]highly physically and moderately to highly psychologically addictive. The frequent use of GBL can cause withdrawal symptoms similar to those caused by other depressants such as alcohol and benzodiazepines if abruptly discontinued, reportedly with a much faster onset and more severe symptoms when used frequently. Withdrawal effects from GBL build faster than with GHB. These symptoms seem to depend on the dosage and the length of time the drug was used for. Light to moderate users often experience anxiety, insomnia, sleep-related problems, and tremors whereas heavy use can cause severe withdrawal symptoms like delirium, psy
A common oral dose of GBL is 0.9–1.5 mL.
The threshold dose for GBL via oral is approximately 0.3 mL.
GBL typically lasts 1–2 hours via oral.