Before going into a coma, she consumed 10 liters of water in just 15 hours. The young woman experienced high blood pressure and brain swelling prior to her death. Former speed addicts who took BZP experienced an increase in blood pressure and short-term mental experiences similar to those brought on by amphetamines.

Interactions
There are no licensed medicinal products in the EU containing BZP or any of the other substances considered here. In the presented studies, analyses were performed using the buffer concentrations of 10 mM, 20 mM and 100 mM. Using a concentration of 10 mM, the obtained results were not satisfactory. On the other hand, using 100 mM, individual compounds were determined, however, it was not possible to separate the mixture of benzyl and phenylpiperazine from one sample. The best results of the chromatographic separation were obtained for the concentration of 20 mM for both individual compounds and the mixture.
Drugs A – Z
Increasing evidence indicates that misuse of BZP and TFMPP is rising in the US and abroad (de Boer et al, 2001; Drug Enforcement Administration, 2001; Maurer et al, 2004; Wikstrom et al, 2004). In the US, for example, law enforcement officials from Federal, state and local jurisdictions have reported a marked increase in the number of confiscated tablets containing BZP and/or TFMPP. Although the extent of piperazine abuse is impossible to ascertain, the DEA has placed BZP and TFMPP into emergency Schedule I status based on the potential for imminent hazard to public safety (Department of Justice, 2002). In recent years, the number of new psychoactive substances (NPS) appearing on the illicit drug market strongly increased. Therefore, we determined the most frequently occurring NPS in The Netherlands and combined this with data regarding drug-related intoxications.
Legal Status TFMPP
Many studies have described the structure-activity relationship of large numbers of compounds with a chemical structure to the arylpiperazine side chain 9,51. The attempts are still being made to develop metabolically stable derivatives as drug candidates 52. Mixing piperazines with alcohol can be particularly dangerous – the effects of these two substances interact, and you may also be less in control, making use much riskier 2. Piperazines are a very broad chemical group, covering a wide range of drugs from antidepressants to antihistamines. The connecting property of all these chemicals is the presence of a piperazine functional group.
At the molecular level, MDMA serves as a substrate for 5-HT transporters (SERTs) and DA transporters (DATs), thereby triggering nonexocytotic release of transmitter molecules from 5-HT and DA neurons (Green et al, 2003). BZP itself was initially developed as a potential antidepressant drug, but was found to have similar properties to amphetamine and therefore liable to abuse. In the 1980s, it was used in Hungary to manufacture piberaline, a substance marketed as an antidepressant, but later withdrawn 2. In the late 1990s, BZP emerged in New Zealand as a ‘legal alternative’ for MDMA and methamphetamine 3.
It is known that TFMPP decreases spontaneous activity in rats exposed to a novel environment (Lucki et al, 1989), and such hypomotility is mediated via activation of 5-HT2C receptors. It is feasible that TFMPP did not decrease motor activity in our experiments because rats were already habituated to housing conditions with an overnight acclimation period. Administration of BZP stimulated a parallel rise in extracellular DA and 5-HT in vivo, but effects on DA were always predominant (see Figure 6).
It seems possible that high-dose BZP/TFMPP might enhance extracellular DA by blocking the activity of monoamine oxidase or catechol-O-methyl transferase, but these mechanisms have not been examined. Administration of high-dose BZP/TFMPP could overwhelm the ability of the organism to dispose of these drugs, causing elevated drug levels to accumulate in tissues, including the brain. Under these circumstances, monoaminergic and nonmonoaminergic processes might cause the development of seizures.
3 Comparison Of LC-MS And LC-DAD Methods

Further work is necessary to determine the precise mechanism(s) underlying the apparent synergism between BZP and TFMPP. These compounds are seen by users as alternatives to MDMA and amphetamines due to their similar effects on the central nervous system. The recreational use of piperazine derivatives can result in acute or chronic poisoning. The article describes methods using liquid chromatography techniques for the independent detection of piperazine designer drugs in biological and non-biological matrices. The benefit of the LC-MS method is the high sensitivity of determinations, while the LC-DAD method ensures high reproducibility of results.
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. 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.
Who Abuses BZP?
Till now, various modern NPS detection methods, which use liquid chromatography (LC) or gas chromatography (GC), have been proposed 3,12,15,41,69,70,73,74,75,76,77,78. However, other studies using GC-MS, LC-MS and LC-DAD usually did not deal directly with the piperazine designer drugs 12,15,69,75,76. Widely used GC-MS technique is quite often chosen for systematic toxicological analysis (STA), although the preparation of samples of piperazine derivatives requires derivatization, which significantly extends the time of determinations 41,64,77. LC-MS is seen as a complementary technique to GC-MS and can be successfully used to for the detection of unstable, low-dosed or polar drugs, specifically in biological fluids 79. In addition, the relatively low cost of equipment and its operation allows for the availability of determinations in many laboratories. LC-MS becomes an increasingly commonly used apparatus, however, although many methods were published until now, piperazine designer drugs are not part of the routine approach in laboratory analysis 26.
Chemical Derivatives
- They were produced as a legal alternative to ecstasy (though have since been classified as Class C drugs) and have been found as a cutting agent in some ecstasy pills.
- 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).
- There is no sure way of knowing the exact dose of BZP and/or TFMPP in tablet form because all of the pills are made in illegal labs.
- These isoenzymes can differ in amino acid sequence, which can cause side effects, especially when MDMA is used concomitantly 9,33.
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. The DEA reports that BZP and TFMPP are sometimes deliberately mixed with ecstasy by drug dealers and then sold as ecstasy. Some users hoping for an extended or intensified high from ecstasy will knowingly combine these drugs. A DEA “Drug Intelligence Brief” described the drug-related death of a 23-year-old woman in Zurich, Switzerland, after she had consumed both BZP and ecstasy. Medical evidence suggests that the drug combination made her extremely thirsty.
Benzylpiperazine/Trifluoromethyl-phenylpiperazine
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. Furthermore, it has a great impact on various behavioral activities such as aggression, avoidance, anxiety, sexual activities, feeding and accommodation. Conversely, if suitable prophylactic and therapeutic measures are not considered immediately, TFMPP can be an impending danger for the global health care.

Designer Drug- Trifluoromethylphenylpiperazine Derivatives (TFMPP) – A Future Potential Peril Towards Modern Society
- However, the main issue is the lack of ability of laboratory confirmation of the occurrence of poisoning with piperazine designer drug involvement 10,26.
- Conversely, if suitable prophylactic and therapeutic measures are not considered immediately, TFMPP can be an impending danger for the global health care.
- Discussion about the results obtained, and a detailed method description are presented in the separate report 22.
- The kinetics of formation of dihydromorphine in both groups were best described by a single enzyme Michaelis-Menten model although inhibition studies in extensive metabolizers suggested involvement of two enzymes with similar K m values.
- Transporter-mediated release assays were carried out as previously described with minor modifications (Rothman et al, 2001).
- Piperazine designer drugs show affinity for many 5-HT receptor subtypes 9,21,22.
Addiction can lead the user to abandon educational goals and engage in criminal activity. Since the early 1950s, piperazines have been used widely by veterinarians as an anthelmintic drug. In humans, piperazine citrate serves a similar function and is used to treat pinworm and roundworm infestations in adults and children. The drug acts by paralyzing the muscles of mature worms and dislodging them from the walls of the intestines. People can react differently to drugs due to differences in bodyweight, metabolism, and other factors.
In contrast to the behavioral effects of BZP, TFMPP is not a locomotor stimulant. TFMPP did not alter motor activity at either dose tested, despite significant elevations in extracellular 5-HT in the nucleus accumbens. These results suggest that stimulation of SERT-mediated 5-HT release alone (ie in the absence of concurrent DA release) may not be sufficient to produce robust motor activation. We have shown that fenfluramine and chlorphentermine are relatively selective 5-HT releasers in vivo, and these drugs do not produce locomotor stimulation (Baumann et al, 2000; Rothman and Baumann, 2000). Alternatively, the direct postsynaptic receptor actions of TFMPP may serve to inhibit behavior.
Types Of Drugs

The quantitative analysis of piperazine derivatives was performed by LC-MS method and the results are presented in Table 8. From 1 September 2025, etomidate and its analogues will be classified as Class C controlled drugs under the Misuse of Drugs Act 1973 (MDA) for a period of six months, pending the Ministry of Health’s introduction of a more fit-for-purpose legislation. With this change, those who import, sell or distribute etomidate e-vaporisers will face prosecution under the MDA, and much higher penalties than today. Individuals found using etomidate e-vaporisers or who test positive for etomidate will no longer be just subject to a fine.