BZP

BZP was marketed as a legal alternative to amphetamines and MDMA in the early 2000s but is now illegal in many countries. It is approximately 10% the potency of dexamphetamine. Side effects include anxiety, insomnia, nausea, headaches, and seizures at high doses. Risk of serotonin syndrome when combined with serotonergic drugs. Avoid use with cardiovascular conditions, epilepsy, or liver problems.

BZP molecular structure diagram from the DrugsPRO substance library.

Also known as: A2, Pep x, Frenzy, Legal x, Nemesis, N-benzylpiperazine, Party pills, 1-Benzylpiperazine

Classification

Chemical: Piperazine
Psychoactive: Stimulant
Tag: Habit-Forming
Tag: Research-Chemical

Effects

Stimulation
Increased Energy
Increased Heart Rate
Vasoconstriction
Insomnia
Nausea
Euphoria
Wakefulness
Focus Enhancement
Increased Sociability
Anxiety
Increased Focus
Appetite Suppression
Increased Music Appreciation
Auditory Enhancement
Blurred Vision
Brightness Enhancement
Contrast Enhancement

Routes of Administration

Oral

Dosage

Threshold: 20 mg
Light: 20-50 mg
Common: 50-100 mg
Strong: 100-150 mg
Heavy: 150+ mg

Duration

Onset: 0.5-1.5 h
Comeup: 0.5-1 h
Peak: 2-4 h
Offset: 2-4 h
After Effects: 8-24 h
Total Duration: 6-10 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.

Links

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BZP