This paper outlines the subjective effects observed following oral doses of BZP (200 mg) and TFMPP (60 mg) alone, or in combination (100/30 mg) compared to placebo. BZP showed significant dexamphetamine-like stimulant effects, inducing euphoria, sociability, and drug liking, whereas TFMPP induced fewer stimulant-like effects and increased anxiety, via its serotonergic effects. The combination of BZP and TFMPP induced similar subjective effects, along with well-characterized dexamphetamineand MDMA-like effects. These subjective data allow for obvious comparisons to be made between party pill drugs and other commonly known stimulants. However, despite estimates of over 20 million doses sold in New Zealand alone and increasing seizures by the Drug Enforcement Administration in the USA, there are no published cases of dependence worldwide.
Medical Usage

In Europe, its use was first reported in Sweden in 1999, but it only became widespread as a NPS from 2004 onwards until controls over the substance were introduced in 2008, in the European Union 4. The method of detection abused piperazine designer drugs in biological material using LC-MS was the subject of a separate publication 22. The present article lists the results and stages of the described methodology, which are the most important from the point of view of comparing the LC-MS and LC-DAD methods. Piperazine derivatives belong to the basic chemical structures for the preparation of new compounds acting on the serotoninergic system 9.
Similar to other stimulants, TFMPP also increases the monoaminergic neurotransmission. Interestingly, TFMPP principally affects the serotonergic neurotransmission. TFMPP displays significant agonistic activity towards 5-HT1A, 5-HT1B, 5-HT1D, 5-HT2C receptors, except the 5-HT2A receptor, where it acts as a weak partial agonist or antagonist. On the other hand, TFMPP has insignificant affinity towards 5-HT3 receptor. It also affects release of acetylcholine and the release and uptake of monoaminergic neurotransmitters (dopamine, norepinephrine). Due to the specific effects of TFMPP on serotonergic neurotransmission, it induces hallucination, psychotropic effect, anxiety, nociceptic effect, hypothermia, hypotension, and bradycardia.
BZP – acts to increase serotonin in the central nervous system and prefers serotonin 5-ht type 1 receptors. This gives the user the amphetamine-like effects that are commonly noted when taking BZP. There is very little pharmacological research on this group currently, and most of the studies that do exist look predominantly at bzp, tfmpp, mcpp as these are the most commonly used substances.
What Happens If I Mix Piperazines And
(1973), ‘A comparison of the effects of 1-benzylpiperazine and dexamphetamine on human performance tests’, European journal of clinical pharmacology, Volume 6, No 3, pp. 163–169. Transporter-mediated release assays were carried out as previously described with minor modifications (Rothman et al, 2001). Tissue from caudate (for DAT assay), or from whole brain minus cerebellum and caudate (for SERT assay), was homogenized in ice-cold 10% sucrose containing 1 μM reserpine.

Recreational History
Several studies have shown that these drugs cause several drug-drug interactions. 1-Benzylpiperazine (BZP; see Molecular structure 1) is one of a small group of benzyl-substituted piperazines, but a much larger group comprises the phenylpiperazines (see Tables 1 and 2). Despite claims by some tablet and capsule suppliers that they are herbal products, piperazine and its derivatives are synthetic substances that do not occur naturally.
Consequently, there are significant differences between substituted piperazines and MDMA with respect to motor activity, and this may be attributable to direct postsynaptic actions of piperazine compounds. As mentioned already, TFMPP inhibits spontaneous locomotor activity via 5-HT2C receptor mechanisms. It is tempting to speculate that partial agonist or antagonist activity of TFMPP at 5-HT2A receptors, coupled with full agonist activity at 5-HT2C receptors, could induce powerful inhibition of the motor-stimulant properties of BZP. Consistent with this notion, the selective 5-HT2A antagonist MDL 100,907 reduces hyperactivity elicited by indirect DA agonists like amphetamine and cocaine (Moser et al, 1996; O’Neill et al, 1999). Similarly, selective 5-HT2C agonists inhibit cocaine-induced motor stimulation (Grottick et al, 2000; Filip and Cunningham, 2003).
Medical Use
Until now, other studies using LC-MS, GC-MS, and LC-DAD did not explicitly target the compounds from the tested group 12,15,69,75,76. The methods presented in the article may complement each other for the research on piperazines or they may be used independently. The appropriate chromatographic column was selected and the chromatographic conditions were optimized. The chromatography has been optimized with an eluent gradient, obtaining a good peak shape and good separation of analytes. UV-VIS spectra, retention times and compliance with the standard were obtained for all tested compounds.
Substances
Probes were perfused in situ overnight with artificial cerebrospinal fluid containing 150.0 mM Na, 3.0 mM K, 1.4 mM Ca, 0.8 mM Mg, 1.0 mM P, and 155 mM Cl (Harvard Bioscience, Holliston, MA), pumped at a flowrate of 0.5 μl/min. On the morning of the experiment, dialysate samples were collected at 20-min intervals. Samples were immediately assayed for DA and 5-HT by HPLC with electrochemical detection as described below.

Drugs And Inhalants
The use of piperazine derivatives, colloquially named ‘party pills’, has been escalating in New Zealand and worldwide since their introduction in the 1990s. Benzylpiperazine (BZP) is often used alone, or can be combined with trifluoromethylphenylpiperazine (TFMPP). Taken together as an oral dose, they have been reported to produce effects similar to 3, 4-methylenedioxymethamphetamine (MDMA). While the pharmacokinetic data have recently been published, little research has been conducted on the subjective effects of these piperazines on humans.
(2003), ‘Screening for and validated quantification of amphetamines and of amphetamine- and piperazine-derived designer drugs in human blood plasma by gas chromatography/mass spectrometry’, Journal of Mass Spectrometry, Volume 38, No 6, pp. 659–76. The piperazine derivatives are not chemically similar to any of the more common substances of misuse, but have a more distant connection with phencyclidine and with 1-phenylethylamine and its derivatives. The suggestion that BZP and other piperazine derivatives are extracted from the pepper plant may arise from confusion with the unrelated substance piperine, a constituent of black pepper (Piper nigrum).
- If you’re caught driving under the influence, you may receive a heavy fine, driving ban, or prison sentence.
- Surprisingly, it has been reported by some to produce effects that are usually caused by entactogens such as MDMA.
- The best results of the chromatographic separation were obtained for the concentration of 20 mM for both individual compounds and the mixture.
- Identifying new targets for already approved drugs is one solution for treating viral diseases 54,55.
- An exemplar chromatogram of the tested piperazine derivatives is shown in Figure 1 (intensity versus retention time).
Like other 1-arylpiperazines, MeOPP may exert central serotonergic effects 30. It produces amphetamine-like effects, although it is less addictive 31. MDBP shows a weak inhibition of serotonin reuptake and may cause slightly different effects compared to BZP 18. Large doses of MDBP are needed to achieve the perceptible effects in recreational use. Objectives ‘Party pills’ have found use worldwide as a substitute for amphetaminederived designer drugs.
Table 2 shows chemical structures, M + H+ and major fragmentation patterns of piperazine designer drugs detected by mass spectrometry. 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.
Duration Of Effects

In 2005 the New Zealand government created legislation intended to regulate the drug, but as potential health risks from BZP consumption became apparent, subsequent legislation was introduced to prohibit the substance. The following review briefly covers the scientific and legal background of benzylpiperazine with particular reference to New Zealand, the country in which it was most popular. At the high dose of BZP/TFMPP (10 mg/kg, i.v.), extracellular DA was elevated to a greater extent than the summed effects of BZP and TFMPP alone, suggesting a synergistic effect on DA transmission when the drugs are combined (see Table 1). In contrast, the rise in extracellular 5-HT produced by BZP/TFMPP was similar to the additive effects of BZP plus TFMPP. Several rats receiving the high-dose combination developed seizures and subsequent ataxia. Although the seizures produced by BZP/TFMPP were short-lived and rats recovered completely, we did not investigate this phenomenon further due to animal welfare concerns.
If BZP comes in contact with the eyes or skin, it can cause severe inflammation and burns. When inhaled, it irritates the respiratory tract, leaving the user with a sore throat, coughing fits, and difficulty breathing. Prolonged inhalation can cause chemical burns to the breathing tubes and the buildup of fluid in the lungs.