The substance was analytically confirmed by the Swedish National Forensic Centre using GC-MS, GC-IRD (Gas Chromatography with infrared detection), LC-HRMS and NMR 9, 135. Bromazolam was first identified in a sample of 0.74 grams of yellow powder seized by Swedish Customs in Stockholm on 3 August 2016. Bromazolam is not currently controlled under the 1971 United Nations Convention on Psychotropic Substances or the 1961 Single Convention on Narcotic Drugs.
Furthermore, the risk of polydrug use involving BZDs and opioids (both traditional and synthetic ones) are furtherly intensified by NPS belonging to these new/designer BZDs . Tolerance and dependence may occur shortly after consumption has started, which requires dose increase and may trigger drug-seeking behaviours 1, 3. Furthermore, BZDs may be classified according to their chemical structure and designer BZDs are mainly classified as either 1,4-benzodiazepines (a structure shared by most ‘traditional’ BZDs), triazolo-BZDs, or thienotriazolodiazepines (Table 1) . Plasma half-life (t½) represents the hours required for the concentration of the drug in the body to be reduced to half of the maximum concentration.
Sought After Effects
Tofisopam is rapidly absorbed from the intestinal tract, peak plasma concentrations are reached within 1-1.5 hours in humans . Due to these pharmacodynamic properties, tofisopam has been considered as an atypical BZD 178, 183. Moreover, under some circumstances, tofisopam may demonstrate stimulant properties as well 178, 182.

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Some are also sold on the illicit drugmarket as counterfeit forms of traditional BZDs or as either adulterants or diluents in heroin or other synthetic opioids/cannabinoids. They are sold as tablets/powder/pellets/capsules/blotters/liquids, at very affordable prices, and variably administered. So far, 29 designer BZDs have been notified to the EMCDDA, being some of them extremely powerful, also at lower dosages. A comprehensive overview was carried out by using the EMCDDA/EDND database regularly monitored by our research team, by specifically looking at the ‘new BZDs’ so far notified. This section collects any data citations, data availability statements, or supplementary materials included in this article. This review was partially funded by the Italian Presidency of Ministers Council, Department of Antidrug Policy.
Addiction
Fortunately, many states are now banning them, and the federal government can use the "Analog Act" to pursue new drugs that are fundamentally copies of previously banned drugs. Many are sold as incense, or as "herbal" drugs. That's why former secretary of Health Education and Welfare Joseph Califano has said, "The Internet is still a pharmaceutical candy store for any teenager who wants to get drugs." That's also true for any adult.
From a pharmacological point of view, phenazepam is generally more potent than diazepam (5-10-fold) and possesses more severe and persistent side-effects (up to 5 days-3 weeks) by having a long elimination half-life of around 60 hours after ingestion 16, 26, 29-32. In other cases, counterfeiters used these substances to produce ‘fake’ versions of commonly prescribed anti-anxiety drugs, such as diazepam and alprazolam, which were sold directly on the illicit online drug market . This group of drugs includes substances that were tested but not approved as medicines in the pharmaceutical industry or that have been manufactured by modifying the core structure of existing pharmaceutical BZDs 7-9. Furthermore, given the limitation of peer-reviewed data published so far, a nonparticipant multilingual qualitative netnographic study was conducted to obtain further clinical/pharmacological/toxicological data, including psychonauts’ online trip reports. Of sixty deaths reported, phenazepam alone was listed as the sole cause of death in two cases, while the remaining were attributed to accidental overdose due to polydrug toxicity. According to the UNODC, between 2019 and April 2020, DBZD were identified in 48% and 83% of post-mortem and Driving Under the Influence of Drug (DUID) cases, respectively, with flualprazolam, flubromazolam and etizolam as the most frequently detected substances 54,72.
Is It Dangerous To Mix With Other Drugs?

However, banning drugs of a chemical class not yet discovered is legally very difficult. Some states have legislated a ban on particular classes of drugs, so that not-yet-created versions of older, toxic drugs will not themselves be legal. One such drug was MPTP, an adulterant of a "designer drug" hallucinogen whose users went on to a rapid and very ugly version of Parkinson's disease. However, lots of drugs beat the "Analog" restriction for years, especially when the market is relatively small.
What Are The Treatment Options For Phenazepam Drug Addiction?
NPS belonging to the benzodiazepine (BZD) class, e.g., ‘legal/designer BZDs’/‘research chemicals’, have recently emerged in the drug (mainly online/virtual) market. Relative to phenazepam, 3-hydroxyphenazepam has diminished myorelaxant properties, but is about equivalent in most other regards. It is an active metabolite of phenazepam, as well as the active metabolite of the benzodiazepine prodrug cinazepam. 3-Hydroxyphenazepam is a benzodiazepine with hypnotic, sedative, anxiolytic, and anticonvulsant properties. There was overlap between diclazepam, etizolam and phenazepam blood concentrations in impaired and non-impaired drivers 85,86.
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Phenazepam is a long-acting benzodiazepine and anxiolytic used for anxiety in Russia—it’s an illicit drug in the United States. The drug's effect was so specific and so toxic it led to new scientific understanding of the disease. Sometimes the effects are things no one expected. As the New York Times has reported, the epidemic of psychosis-producing substituted cathinone "bath salts" has prompted action by many states. People also do not realize that alcohol at midnight has two-to-three times the psychomotor effects of drinks consumed at 6 pm.
- There are several anecdotal reports from psychonauts fora which describe it as “of extreme duration, with effects for larger doses reaching up to three days” 52, 54.
- The drug's effect was so specific and so toxic it led to new scientific understanding of the disease.
- There are several anecdotal reports from psychonaut fora, which described mostly an “anxiolytic and muscle relaxant effect … with a low tolerance shows hypnotic effects.
- All cases had multiple drugs; one was also positive for etizolam.
- These drugs are considered to be the least harmful of the controlled drugs.
It can be used as a premedication before surgery as it augments the effects of anesthetics and reduces anxiety. However, it has no accepted use in the U.S. and is considered an illegal drug there. Others decide to buy phenazepam legally online using Google and other search engines. You can't buy phenazepam in the U.S. because it's an unapproved medicine. Phenazepam prices at Russian pharmacies range from $1.55 to $2.54 for tablets.
To date, correlations between dose and response, duration of action, metabolism, and onset of action are still poorly understood, making it harder for users to accurately dose the compound they purchased, increasing the prospect of potential intoxication. The patients may not be aware of the identity or concentration of DBZD in a drug product before suffering symptoms of intoxication . Clinicians should be asking patients about substance abuse including NPS and DBZD during routine preventive care and ED visits. For most NPS placed under international control, the number of reports decreased rapidly the year after the scheduling decision . DBZD are widely available on the Internet in different forms, i.e., blotters, liquids, pills, powders and tablets, and sold at low prices .

A total of 254 cases describing 1 drug offense, 2 self-administration studies, 3 outpatient department admissions, 44 ED admissions, 63 DUID and 141 deaths, reported between 2008 and 2021, are summarized in Table 1. In 2020 amid shortages of classic drugs of abuse following COVID-19 restrictions, some drug users shifted from prescription sedatives to DBZD and novel synthetic opioids (NSO) 63,64,65,66. Phenazepam and nimetazepam were the first DBZD identified in Europe on the internet in 2007, followed by etizolam in 2011 . However, they are illicit, with a relatively short life cycle in the NPS market, the majority of DBZD have not undergone clinical trials and our knowledge of their pharmacokinetics and toxicity is lacking and limited to self-reported experiences 43,44. Slight alterations of the BZD core at different positions generated a large number of designer compounds, mainly 1,4-benzodiazepines, triazolobenzodiazepines and thienotriazolodiazepines.
New York Nurse Sentenced For Selling Unapproved "Party Drug" Phenazepam On The Internet
In December 2014, four-round, light-brown tablets marked as ‘nifoxipam 1 mg’ were sent from the UK to Finland where they were seized and nifoxipam was analytically confirmed by GC-MS and LC-MS/MS analysis 9, 10. The substance was analytically confirmed by GC-MS, LC-MS (liquid chromatography-mass spectrometry) and NMR analysis by the Swedish National Laboratory of Forensic Sciences 69, 79. Nifoxipam is not currently controlled under the 1971 United Nations Convention on Psychotropic Substances or the 1961 Single Convention on Narcotic Drugs. Flubromazolam is not currently controlled under the 1971 United Nations Convention on Psychotropic Substances or the 1961 Single Convention on Narcotic Drugs.

There is limited information available on the pharmacology and toxicology of this substance, as there are no published reports so far. Flualprazolam appears to be marketed as ‘fake’ alprazolam (labelled as ‘Xanax®’ or Xanor’ tablets) and some psychonauts defined it as the “king of the RC benzos” (i.e. the king of the research chemicals benzodiazepines) 54, 199, 200. Symptomatology occurs minutes after oral intake, effects may last 6-14 hours and after-effects for 36 hours . A longer half-life and higher potency compared to alprazolam is reported, with strong and heavy effects after oral intake of 0.5-1 mg and 1-2 mg respectively . There is limited information available on the pharmacology and toxicology of this substance, as there are not published reports so far.

It is a positional isomer of another designer BZD, diclazepam (Ro or 2’-chlorodiazepam) . Fonazepam is normally consumed in a tablet (or in powder) form and administered in doses ranging from 0.5 to 3 mg 51, 52, 54. The substance was analytically confirmed by GC-MS using a reference standard 95, 135.
Its peak plasma concentration is reached within 1-3 hours after oral administration and it has a t ½ of approximately 3.3 hours . It exerts anxiolytic, anticonvulsant, sedative and muscle relaxant effects 203, 204. Bentazepam is a thienodiazepine that differs from the previously notified thienodiazepines (i.e., etizolam, metizolam and fluclotizolam) due to the presence of cyclohexane fused to the thiophene instead of a triazole . Clobromazolam was first identified in 20 white capsules containing white powder seized by Swedish Police in Luleå on 11 March 2016 .