Molar mass176.258 g/mol
PubChem CID75994
Category: Tags: ,


Benzylpiperazine (BZP) is a recreational drug with euphoriant and stimulant properties. The effects produced by BZP are comparable to those produced by amphetamine.

1-benzylpiperazine is a tertiary amino compound that is piperazine substituted by a benzyl group at position 1. It is a serotonergic agonist used as a recreational drug. It has a role as a xenobiotic, an environmental contaminant, a psychotropic drug and a serotonergic agonist.

BZP has been shown to have a mixed mechanism of action, acting on the serotonergic and dopaminergic receptor systems in a similar fashion to MDMA. BZP has amphetamine-like actions on the serotonin reuptake transporter, which increase serotonin concentrations in the extracellular fluids surrounding the cell and thereby increasing activation of the surrounding serotonin receptors. BZP has a lower potency effect on the noradrenaline reuptake transporter and the dopamine reuptake transporter. BZP has a high affinity action at the alpha2-adrenoreceptor, it is an antagonist at the receptor, like yohimbine, which inhibits negative feedback, causing an increase in released noradrenaline.

BZP also acts as a non-selective serotonin receptor agonist on a wide variety of serotonin receptors; binding to 5HT2A receptors may explain its mild hallucinogenic effects at high doses, while partial agonist or antagonist effects at the 5HT2B receptors may explain some of BZPs peripheral side effects, as this receptor is expressed very densely in the gut, and binding to 5HT3 receptors may explain the common side effect of headaches, as this receptor is known to be involved in the development of migraine headaches.

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