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GHB, GBL and 1,4-BD

Group: Depressants
Nicknames: GHB - 'G, Liquid ecstasy, Liquid X, Easy Lay, Cherry Meth, Scoop, Organic Quaalude, Fantasy’. GBL - ‘Midnight blue, Blue nitro, Alloy Cleaner, Magic Stripper
Last reviewed: October 2026

Pharmacology

GHB has an interesting but still greatly undiscovered pharmacology. It was created with the intention to produce an analogue of (or a related compound to) the inhibitory neurotransmitter GABA and thought to act via GABA receptors (mainly GABA-B). However, we now know that it stimulates its own distinct GHB receptor, that naturally present in the brain, and that GHB actually has a weak affinity (ability to bind) for the GABA receptors.

GHB also interacts with the dopaminergic system, and can alter levels of dopamine. In some areas of the brain, it increases, and in others it decreases the levels of dopamine. It is also thought to act on serotonergic and opioidergic systems. Interestingly, naloxone and naltrexone have been shown to reverse the effects of GHB (and GBL) on dopamine release. Much of the research requires further investigation.

GBL and 1,4-BD are both converted into GHB in the body. GBL is more lipophilic (mixes with fat/lipids easily) than GHB, and therefore is absorbed faster in the body than GHB. This means that, paradoxically, GBL can have a faster onset than GHB. On the other hand, 1,4-BD has a slower onset but a longer duration of effects.

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