BZ is an extremely potent, long-lasting anticholinergic deliriant originally developed as a military incapacitating agent. Even sub-milligram doses produce profound delirium, confusion, vivid hallucinations, amnesia, and severe anticholinergic toxicity lasting days. Effects include dangerous hyperthermia, tachycardia, urinary retention, and complete loss of contact with reality. Medical intervention is often required. The unpredictable, intensely dysphoric nature and extreme danger make recreational use essentially non-existent.
Also known as: Bz, Qnb, Ea-2277, Agent buzz, Substance 78, 3-QNB
Strong: 7–8 µg/kg (reliably incapacitating in trials)
Threshold: 1–5.3 µg/kg
Duration
Onset: 1-4 h
Peak: 6-24 h
Offset: 24-72 h
After Effects: 72-168 h
Total Duration: 70-80 h
Harm Reduction
Check interactions before mixing substances, pay attention to dose spacing and hydration, and treat all dosage guidance as approximate rather than guaranteed safe.
Sources
Substance data is aggregated from the following public harm-reduction and reference sources.
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3-Quinuclidinyl benzilate - Guida alle sostanze DrugsPRO
3-Quinuclidinyl benzilate: BZ is an extremely potent, long-lasting anticholinergic deliriant originally developed as a military incapacitating agent. Even sub-milligram doses produce profound delirium, confusion, vivid hallucinations, amnesia, and severe anticholinergic toxicity lasting days. Effect
