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AKA Party Pills, Exodus

Mar 13

The Drug

BZP or Benzylpiperazine is an illegal synthetic stimulant with effects similar to amphetamine. It belongs in a class of drug called piperazines which are all stimulants. Some have been used in veterinary practice in the treatment of round worm in animals.

They are pills of various colours and shapes which give a speed type buzz. Some piperazines such as TFMPP produce euphoria similar to ecstasy. They are also used as an adulterant or substitute for drugs such as ecstasy and cocaine. They have only been circulating in UK for about five years and rose in popularity because of their greater purity and their legality. They are sometimes marketed as herbal which a false claim they are synthetic.

BZP use is fairly low in UK but has become popular in other European countries and particularly in New Zealand where they originated. BZP became illegal (Class C) in 2009.

Also known as: Party Pills, Exodus.


The main effects are a sense of alertness/hyperactivity and well being to the point of euphoria. You have much increased energy. It is a stimulant so affects the central nervous system making the heart race. A dose of around 100mgs should last about 4-6 hours. There are the usual come down from stimulants, headache, insomnia, restlessness, fatigue and depression. It also suppresses hunger and encourages greater water intake. Some piperazines particularly mCPP once often found in ecstasy tablets can cause severe headaches.


There have not been many studies on the harms of BZP but parallels could be drawn with the main harms of ecstasy and other synthetic amphetamines. The potential harms include palpitations, mood swings, raised body temperature.

Be Safe

Taking BZP may make you vomit, particularly after alcohol. It is unwise to take several pills in a short space of time or in conjunction with other drugs there is a risk of a severe reaction or even overdose. There is also the danger of paranoia and triggering a psychotic episode which could mean hospitalisation. BZP can encourage repeat dosing and can lead to dependence. Anyone taking significant amounts is likely to feel some adverse effects on mental health such as depression. You should seek help from drug treatment services.

The Law

BZP is a class C drug and is illegal to possess or supply. Because it is usually in the form of pills, it is hard for a police officer to distinguish BZP from ecstasy. Being caught in possession of even very small amounts would likely result in your arrest. You may be offered a caution for possession. This means you accept the offence and will have a criminal record.

There is also a smaller chance you will be charged with the offence and will have to appear in court where you will most likely be fined or possibly face some community service. If you are caught dealing you will probably be imprisoned, depending on the amount.

Do lots of people take piperazines?
Not anymore. Back when MDMA purity was low (about 10 years ago) BZP/Piperazine were used as a ‘legal’ alternative. People rarely use these drugs knowingly after they were regulated under the Misuse of Drugs Act.

Do ecstasy tablets contain piperazines?
Piperazines usually come in a pill so they are sometimes mis-sold as ecstasy because this drug imitates MDMA’s stimulant effects. Currently ecstasy has high purity so relatively few pills are cut with piperazine. Piperazines might produce a mellow high compared to MDMA but their effects remain unpredictable.