1,4-Butanediol (also known as 1,4-B, BDO, BD or 1,4-BD) is a depressant substance and a prodrug for GHB. It occurs as a thick, colorless liquid or solid depending on storage temperature (melting point of 20 '), and has a distinct bitter-sweet taste.[3] It is used as a recreational intoxicant with effects similar to alcohol and GHB.[4] 1 ml of 1,4-butanediol is equivalent to 1.4 g of Na-GHB.
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1,4-Butanediol is used industrially as a solvent and in the manufacture of some types of plastics, elastic fibers and polyurethanes. In organic chemistry, it is used for the synthesis of γ-butyrolactone (GBL).[5]
1,4-Butanediol, as well as GBL, will dissolve most types of plastic over time.[6] For this reason, it is recommended to only transport and store the drug using a glass container, standard gelatin capsules (not vegetarian), or high-density polyethylene plastic (also known as #2 recycled plastic). To check the type of plastic used on a bottle, one can look at the bottom for a number in the triangle-shaped recycling label.
1,4-Butanediol is classified as a subclass of alcoholic compounds called diols. Diols are named for having two alcohol (OH-) substitutions in their structure. 1,4-Butanediol is comprised of a butane chain of four carbon groups with an alcohol group bound to each terminal carbon of this chain. 1,4-Butanediol is named for these alcohol substitutions, which are located at R1 and R4. These alcohol substitutions make 1,4-Butanediol a polar liquid, which explains its good solubility in water.
Physically, it is a hygroscopic colorless oily liquid with a barely noticeable characteristic odor. Unlike GHB, 1,4-Butanediol has a distinct taste, described as being repulsive, plastic-like and chemical.
1,4-Butanediol is not active in its own right; its mechanism of action stems from its identity as a prodrug of GHB.[7]
It is converted into GHB in the liver by the enzymes alcohol dehydrogenase and aldehyde dehydrogenase, which is the same enzyme as alcohol.[8] 1,4-Butanediol is first converted into 4-hydroxybutaldehyde in the liver and is released into the bloodstream before returning to the liver to convert into GHB. This process results in a much more delayed onset than GBL or GHB.[9] 4-hydroxybutaldehyde, even though it is an aldehyde, does not have the same organ toxicity associated with acetaldehyde.[10] One reason could be the very fast metabolism to GHB.
The differing levels of dehydrogenase enzymes can vary between individuals, meaning that, like alcohol, effects can differ greatly between users. In many, this manifests as a slow onset of effects and a higher rate of aldehyde collecting in the bloodstream, causing more toxic side effects. Because of these pharmacokinetic differences, 1,4-butanediol tends to be less potent and with a slower onset than GHB but has a longer duration; the related compound GBL tends to be slightly more potent and faster to take effect but more short-acting than GHB.
Disclaimer: The effects listed below cite the Subjective Effect Index (SEI), an open research literature based on anecdotal user reports and the personal analyses of PsychonautWiki contributors. As a result, they should be viewed with a healthy degree of skepticism.
It is also worth noting that these effects will not necessarily occur in a predictable or reliable manner, although higher doses are more liable to induce the full spectrum of effects. Likewise, adverse effects become increasingly likely with higher doses and may include addiction, severe injury, or death '.
Anecdotal reports which describe the effects of this compound within our experience index include:
Additional experience reports can be found here
1,4-Butanediol is not active in its own right; its mechanism of action stems from its identity as a prodrug of GHB, meaning that it is rapidly converted into GHB in the body.
GHB is considered to be a safe and non-toxic substance when used responsibly or medically. The LD50 is above the active dosage, and there is no danger of acute toxicity when this compound is taken at appropriate dosages. However, it can be dangerous when used as a recreational drug or abused. There have been many negative reports from recreational users who have overdosed, combined GHB with alcohol or other drugs, or accidentally dosed themselves unexpectedly.[12]
One publication has investigated 226 deaths attributed to GHB.[13] Seventy-one deaths (34%) were caused by GHB alone while the other deaths were from respiratory depression caused by interaction with alcohol or other drugs.
To avoid a possible overdose of GHB/1,4-Butanediol, it is important to start with a low dose and work your way up slowly by increasing the dosage in small increments as the exact toxic dosage is unknown.
Accidental ingestions of 1,4-Butanediol have also occurred due to inadequate storage methods. If 1,4-Butanediol is put into a clear liquid, glass, or bottle, it can be easily mistaken for water. It is recommended to clearly label your 1,4-Butanediol 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 1,4-Butanediol in a container that no one would drink out of.
It is strongly recommended that one use harm reduction practices when using this drug.
In multiple studies, GHB has been found to impair spatial memory, working memory, learning and memory in rats with chronic administration.[14][15][16][17] These effects are associated with decreased NMDA receptor expression in the cerebral cortex and possibly other areas as well.[18]
One study found that repeated administration of GHB to rats for 15 days drastically reduced the number of neurons and non-neuronal cells within the hippocampus and in the prefrontal cortex. With doses of 10 mg/kg of GHB, they were decreased by 61% in the hippocampus region and 32% in the prefrontal cortex, and with 100 mg/kg, they were decreased by 38% and 9%, respectively. This paper demonstrates contradicting effects on neuronal loss, with lower doses (10 mg/kg) producing the most neurotoxicity, and higher doses (100 mg/kg) producing less.
GHB/1,4-Butanediol is moderately physically and psychologically addictive. The frequent use of GHB/1,4-Butanediol can cause withdrawal symptoms similar to those caused by other depressants such as alcohol and benzodiazepines if abruptly discontinued.[20][21] 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, psychosis, and hallucinations.[22][19]
Although there have been reported fatalities due to GHB/1,4-Butanediol withdrawal, reports are inconclusive and further research is needed.[23]
Tolerance will develop to the sedative-hypnotic effects within several weeks of continuous use. After cessation, the tolerance returns to baseline in 7 - 14 days. Withdrawal symptoms or rebound symptoms may occur after ceasing usage abruptly following a few weeks or longer of steady dosing, and may necessitate a gradual dose reduction.
Warning: Many psychoactive substances that are reasonably safe to use on their own can suddenly become dangerous and even life-threatening when combined with certain other substances. The following list provides some known dangerous interactions (although it is not guaranteed to include all of them).
Always conduct independent research (e.g. Google, DuckDuckGo, PubMed) to ensure that a combination of two or more substances is safe to consume. Some of the listed interactions have been sourced from TripSit.