Through presenting the results of a cohort study with BZP-party pill users in Aotearoa New Zealand, this article considers the evidence for any ‘displacement effect’ caused by the criminalisation of the drug in 2008. The findings demonstrate that prohibition was only successful insofar as users ceased taking the banned NPS. In contrast to previous research, we found a strong displacement effect following criminalisation with half of the sample increasing their use of other illegal drugs and, for a third, their use of alcohol. In recent years, the number of new psychoactive substances (NPS) appearing on the illicit drug market strongly increased. However, little is known about their toxic effects and risks.
Pharmacokinetics Of ‘party Pill’ Drug N-benzylpiperazine (BZP) In Healthy Human Participants
BZP is a central nervous system (CNS) stimulant with around 10 % of the potency of d-amphetamine. Neither BZP nor any other substituted piperazine is listed in the Schedules of the United Nations 1971 Convention on Psychotropic Substances, although several members of this family have been proposed for critical review by WHO in 2009. Following a risk assessment by Europol and the EMCDDA in 2007, a Council Decision of 2008 introduced controls on BZP in the European Union. Objectives ‘Party pills’ have found use worldwide as a substitute for amphetaminederived designer drugs. Whilst some information exists about the metabolism of these drugs, there is little information about their ability to inhibit the metabolism of coadministered drugs. This study aimed to determine whether predictions can be made about global interactions between ‘party pills’ constituents and other drugs metabolised by the same cytochrome P450 (CYP) isoenzymes.
Derivatives
They often feature tiny logos—a heart, a fly, a butterfly, a crown, a smiley face, a bull’s head, or a squirrel, for example—etched in them. Some users have reported snorting or smoking BZP preparations. This particular method of ingestion irritates the lining of the nose, mouth, and breathing tubes. The chemical composition of substances sold as piperazines are changing all the time, which is why you can never be sure of what you’re getting and how it could affect you. Neither BZP nor any other piperazines are under international control, although several (BZP, TFMPP, mCPP, MDBP) were pre-reviewed by the WHO Expert Committee on Drug Dependence in 2012.
DrugFacts
Opioids belong to a chemically diverse group of central nervous system depressants. They bear structural features that allow binding to specific opioid receptors, resulting in morphine-like effects e.g. analgesia. The survey consisted of a random national household sample of 2,010 people aged years old collected using the Centre for Social and Health Outcomes Research and Evaluation (SHORE) and Whariki’s in-house computer assisted telephone interviewing (CATI) system. The need for emergency room treatment rose considerably by 2004 among users of BZP and TFMPP. In many cases, users are unaware of the dosage of the tablets they take, which increases the risk of overdose and even death. Because piperazine abuse has been recognized only recently, specific programs for rehabilitation have not yet been developed.
These data suggested that BZP was likely to be addictive and abused. Results of experiments conducted on rhesus monkeys, published in Drug and Alcohol Dependence in 2005, confirmed that BZP is as addicting as amphetamines. TFMPP taken alone, however, was not considered likely to be abused. Other animal experiments suggest that the use of piperazines can actually inhibit learning. Because they affect the brain, the drugs cause a wide range of sensations and experiences.
Toxic Effects
Conclusions The process for determining the legal status of new psychoactive substances appears to function reasonably well, within the framework of international treaty obligations. Most criticisms relate to one or a few substances (e.g. 3,4methylenedioxymethamphetamine) and/or complaints that the decisions discount benefits that are not recognized by the treaties (e.g. recreational or religious use). Alternative chemical names for BZP include 1-benzyl-1,4-diazacyclohexane, N-benzylpiperazine and, less precisely, benzylpiperazine. Street names have included A2, Legal X and Pep X. In New Zealand, piperazine derivatives were commonly known as ‘party pills’. Like ecstasy, other names may reflect the particular logo on tablets.
Typical Users
An industrial use of mCPP is as an intermediate in the production of trazodone and three related substances.Trazodone is licensed in a number of Member States for the treatment of depression and other disorders. The substance 1-(3-chlorophenyl)-4-(3-chloropropyl)-piperazine (mCPCPP) is a precursor used in the manufacture of antidepressant drug nefazodone. BZP was created by Burroughs Wellcome as a potential antidepressant drug, but was never developed commercially because it produced similar effects to d-amphetamine, although the relative potency was only 10 %. After a dose of 50–100 mg in human volunteers, BZP was found to increase pulse rate, blood pressure (systolic and diastolic) and pupillary dilation. Following a dose of 150 mg BZP, repeated at 2 hours, the mean blood concentration in human volunteers reached a peak of 600 ng/ml after 6.5 hours.
- Management strategies are often limited to supportive and symptomatic care due to the limited published data on alternative treatment approaches.
- The negative effects of mCPP, often typical of a serotonin syndrome, include anxiety, dizziness, confusion, shivering, sensitivity to light and noise, fear of losing control, migraine and panic attacks.
- Neither BZP nor any other substituted piperazine is listed in the Schedules of the United Nations 1971 Convention on Psychotropic Substances, although several members of this family have been proposed for critical review by WHO in 2009.
- Other frequently cited 849 drug combinations included cocaine and marijuana, ecstasy and marijuana, LSD and marijuana, and cocaine and alcohol.
- The best known piperazines are BZP (benzylpiperazine), TFMPP, DBZP and mCPP.
Recreational History
Benzylpiperazine (BZP) and trifluoromethyl-phenylpiperazine (TFMPP) are both stimulants—substances that increase the activity of a living organism or one of its parts. Neither one of these compounds has any known medical use for humans, at least not in their existing chemical forms. BZP and TFMPP are substances known as intermediaries, meaning they are at a middle stage in chemical production. Because piperazines can dissolve fats, they are often used as cleaning solutions.
An In Vitro Study Of The Neurotoxic Effects Of N-Benzylpiperazine: A Designer Drug Of Abuse
If the police catch people supplying illegal drugs in a home, club, bar or hostel, they can potentially prosecute the landlord, club owner or any other person concerned in the management of the premises. New Zealand has classified BZP-based party pills as a “Restricted Substance” by the Misuse of Drugs Act and restricted to those over 18 years. For more on the legal issues posed by party pills, see benzylpiperazine.
Since 2012, TFMPP has been listed as a Schedule III controlled substance in Canada,18 making possession of TFMPP a federal offence. It has also been added to Part J of the Food and Drug Regulations thereby prohibiting the production, export or import of the substance. Victoria, the last state in which it was legal, changed its classification on 1 September 2006,42 when BZP and piperazine analogs become illegal in the federal schedules, which are enacted by all Australian states and territories.
People who use BZP or TFMPP usually lose interest in food and may stop eating altogether. After about two weeks on the drug, however, the effects on food intake and weight loss level off. When the drug is stopped altogether, a “rebound effect” on the appetite center of the brain may occur, leading to excessive eating and weight gain. In the United States, BZP is usually imported in powder form and then manufactured into pills. Several hundred pounds of powdered BZP have been seized from India.
Aims Decisions on whether and how to ‘schedule’ drugs (i.e. to determine their legal status and penalties to be applied for sale or possession) are often heavily criticized. We sought to assess more comprehensively the results of such decisions for newly emerging drugs. Findings (i) The rate of emergence of new drugs has been fairly steady. (ii) There is broad cross-national agreement on what should be scheduled. (iv) Temporary bans that delay final decisions by months can sometimes allow final decisions to be grounded on a substantially expanded research base.
BZP and TFMPP are amphetamine-like recreational drugs and the major active components of ‘party pills’. The pharmacodynamic effects of these neurally active drugs are thought to be dependent on their activity at DA and 5-HT receptors and several studies report drug-drug interactions at a pharmacodynamic level. Their metabolism involves the hepatic P450 enzymes CYP2D6, CYP1A2 and CYP3A4 resulting in inhibited metabolism of other drugs and medicines, as well as compromised metabolism in poor metabolisers for CYP2D6.
Basic pharmacokinetic properties are described for both BZP and TFMPP when taken alone and in combination. Several studies have shown that these drugs cause several drug-drug interactions. Following oral administration of mCPP to healthy human male volunteers, the elimination half-life ranges from 2.6 to 6.1 hours with a wide variation in peak blood levels and bioavailability. The hydroxy metabolites are partly excreted as the corresponding glucuronides and/or sulphates, and the chloroanilines are partly excreted as the acetylated derivatives. Physiological and subjective effects reach their peak 1 to 2 hours after oral administration and can last 4 to 8 hours.
BZP/piperazines Drug Profile
- In countries such as New Zealand where BZP and related piperazines have been made illegal, there is now increasing commercial interest in piperazine-free “party pills” which are purported to produce similar effects with ingredients that will circumvent the ban.
- TFMPP is almost always seen in combination with BZP to produce the entactogenic 6 effects of MDMA 7.
- Frequent users usually take anywhere from 35 milligrams to 150 milligrams at a time.
- BZP and TFMPP also affect brain centers that control movement.
- Benzylpiperazine (BZP) is often used alone, or can be combined with trifluoromethylphenylpiperazine (TFMPP).
A basic piperazine can be changed into a variety of different substances simply by adding different chemical groups to the original compound. For instance, a drug called piperazine citrate destroys intestinal worms, making it useful in the treatment of parasitic infections in both humans and animals. Parasites are organisms that must live with, in, or on other organisms to survive.
Both TFMPP and BZP were found to inhibit the metabolism of dextromethorphan, caffeine, and ethinyloestradiol. These are reported substrates of CYP2D6, CYP1A2, and CYP3A4 respectively. Greater enzyme inhibition was observed in TFMPP microsomal assays in comparison to those using BZP. The metabolism of omeprazole was not affected, suggesting that BZP and TFMPP do not have a signif…
