08 September 2009


Benzylpiperazine (BZP) is a piperazine and a CNS stimulant.

Original article by

Benzylpiperazine (BZP) is a piperazine and a CNS stimulant. It is one of the more commonly used piperazines, providing stimulant effects which people describe as noticeably different than those of amphetamines. It is not particularly popular because many people find that it has more side effects than amphetamines.

BZP is used orally at doses of between 70-150 mg. Effects last six to eight hours.

Terminology / slang
The substance: BZP; A2.
The experience: No common terms known.

- Article used with the permission of Last modified April 2009.

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This Erowid article is a summary of data gathered from Erowid site visitors, government documents, books, websites, and other resources. As this field is complex and constantly changing, information should always be verified through additional sources.


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