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    Deschloroetizolam molecular structure

    Deschloroetizolam Stats & Data

    Etizolam-2
    NPS DataHub
    MW308.41
    FormulaC17H16N4S
    CAS40054-73-7
    IUPAC2-ethyl-9-Methyl-4-phenyl-6H-thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepine
    SMILESCCc1cc2C(=NCc3nnc(C)n3c2s1)c1ccccc1
    InChIKeyJIOBORXCOGMHSV-UHFFFAOYSA-N
    Benzodiazepines; 2020/3. Benzodiazepine; 2021/3. Benzodiazepine; 2022/3. Benzodiazepine
    Chemical Class Benzodiazepine
    Psychoactive Class Depressant
    Half-Life Approximately 6-12 hours (estimated; human PK not well characterized; may be prolonged by CYP3A4 inhibitors).

    Interaction Warnings

    dissociatives

    This combination can result in an increased risk of vomiting during unconsciousness and death from the resulting suffocation. If this occurs, users should attempt to fall asleep in the recovery position or have a friend move them into it.

    stimulants

    It is dangerous to combine benzodiazepines with stimulants due to the risk of excessive intoxication. Stimulants decrease the sedative effect of benzodiazepines, which is the main factor most people consider when determining their level of intoxication. Once the stimulant wears off, the effects of benzodiazepines will be significantly increased, leading to intensified disinhibition as well as other effects.

    Receptor Profile

    Receptor Actions

    Modulators
    GABA-A receptor positive allosteric modulator (benzodiazepine site)

    History & Culture

    Deschloroetizolam is a designer thienotriazolodiazepine that emerged as a novel psychoactive substance in 2014. The compound is structurally derived from etizolam, differing only by the removal of a chlorine atom from the parent molecule—hence the "deschloro" prefix in its name. This minor structural modification results in a substance approximately half as potent as etizolam but with a duration roughly twice as long. The substance first appeared on grey market research chemical vendor websites, marketed primarily to collectors and researchers seeking legal alternatives to controlled benzodiazepines and thienodiazepines. It is sometimes sold under the alternative name "Etizolam-2." Unlike its parent compound etizolam, which holds medical approval in certain countries including Japan, Italy, and India, deschloroetizolam has never been developed for therapeutic use and lacks formal pharmaceutical recognition in any jurisdiction.

    Subjective Effect Notes

    physical: The physical effects of deschloroetizolam can be broken down into several components which progressively intensify proportional to dosage.

    cognitive: The cognitive effects of deschloroetizolam can be broken down into several components which progressively intensify proportional to dosage. The general head space of deschloroetizolam is described by many as one of intense sedation and decreased inhibition. It contains a large number of typical depressant cognitive effects. Paradoxical reactions to benzodiazepines such as increased seizures (in epileptics), aggression, increased anxiety, violent behavior, loss of impulse control, irritability and suicidal behavior sometimes occur (although they are rare in the general population, with an incidence rate below 1%). These paradoxical effects occur with greater frequency in recreational abusers, individuals with mental disorders, children, and patients on high-dosage regimes.

    Effect Profile

    Curated + 4 Reports
    Benzodiazepine 8.0

    Strong anxiolysis and euphoria with mild sedation and cognitive impairment

    Anxiolysis×3
    10
    Sedation / Relaxation×2
    5
    Motor / Cognitive Impairment×1
    4
    Euphoria / Mood Lift×1
    10

    Tolerance & Pharmacokinetics

    drugs.wiki
    Half-Life
    Approximately 6-12 hours (estimated; human PK not well characterized; may be prolonged by CYP3A4 inhibitors).
    Addiction Potential
    Moderate to high, in line with benzodiazepines; dependence and severe withdrawal (including seizures) are possible with frequent/repeated use.

    Tolerance Decay

    Full tolerance 7d Half tolerance 14d Baseline ~30d

    Tolerance to sedation/anxiolysis builds within days of regular use and decays slowly over weeks; figures are heuristic and derived from benzodiazepine class data and community experience rather than DCE-specific trials.

    Cross-Tolerances

    Benzodiazepines
    90% ●●○
    Z-drugs (zolpidem, zopiclone, etc.)
    60% ●○○

    Experience Report Analysis

    Erowid
    4 Reports
    2016–2022 Date Range
    4 With Age Data
    1 Effects Detected

    Demographics

    Gender Distribution

    Age Distribution

    Reports Over Time

    Effect Analysis

    Erowid

    Effects aggregated from 4 experience reports (4 Erowid)

    4 Reports
    1 Effects Detected
    1 Positive
    0 Adverse
    0 Neutral

    Effect Sentiment Distribution

    Confidence Distribution

    Positive Effects 1

    Anxiety Suppression 75.0% 70%

    Adverse Effects 0

    Real-World Dose Distribution

    62K Doses

    From 12 individual dose entries

    Oral (n=10)

    Median: 4.0mg 25th: 1.25mg 75th: 8.75mg 90th: 12.0mg
    mg/kg median: 0.041 mg/kg 75th: 0.075

    Legal Status

    Country Status Notes
    Canada Not scheduled Thienodiazepines are not scheduled under Canadian controlled substances legislation. However, sale or provision for human consumption is prohibited as deschloroetizolam lacks approval as a medical drug.
    Germany NpSG controlled Controlled under the Neue-psychoaktive-Stoffe-Gesetz (New Psychoactive Substances Act) since July 18, 2019. Production and import with intent to market, administration to others, and trading constitute criminal offenses. Possession is prohibited but not subject to criminal penalty.
    Russia Schedule III Listed as a Schedule III controlled substance since 2017 under Russian drug control legislation.
    Switzerland Verzeichnis E Specifically named as a controlled substance under Verzeichnis E of Swiss narcotics scheduling.
    Turkey Illegal Classified as a controlled drug under Turkish law. Possession, production, supply, and import are all prohibited activities.
    United Kingdom Psychoactive Substances Act Controlled under the Psychoactive Substances Act 2016, effective May 26, 2016. Production, supply, and import are criminal offenses. Personal possession is not criminalized under this legislation, though the substance remains in a legal grey area.

    Harm Reduction

    drugs.wiki

    Deschloroetizolam is a thienotriazolodiazepine closely related to etizolam; drug checking programs describe it as roughly half as strong per milligram and lasting up to about twice as long as etizolam, which increases next-day impairment risk; plan activities accordingly. Community and HR sources consistently flag benzodiazepines combined with alcohol, opioids, or GHB/GBL as dangerous due to additive/synergistic respiratory depression; avoid these combinations entirely and place any unresponsive person in the recovery position while seeking emergency help. Tramadol with benzodiazepines is particularly risky because it adds respiratory/CNS depression and has seizure potential; avoid this pairing. Etizolam (the parent compound) is primarily metabolized by CYP3A4; given close structural similarity, deschloroetizolam may be similarly affected—CYP3A4 inhibitors (azole antifungals, macrolides, grapefruit) can raise levels and prolong effects; dose conservatively and avoid redosing if such inhibitors are on board. Potency is in the low-milligram range; use a calibrated 0.001 g scale or volumetric dosing and ensure complete dissolution—do not rely on cloudy suspensions as uneven distribution can cause accidental overdoses and blackouts. Illicit supply variability is high; drug checking services have repeatedly detected deschloroetizolam—sometimes unexpectedly—in fentanyl samples; if any opioid exposure is possible, keep naloxone available (it reverses opioids, not benzodiazepines) and avoid using alone. Regular use builds tolerance quickly and can produce significant dependence; abrupt cessation after sustained use can trigger severe withdrawal and seizures—seek medical supervision for any taper. Flumazenil can reverse benzodiazepine effects in medical settings but may precipitate seizures in benzodiazepine-dependent people or mixed overdoses; it must not be self-administered. Avoid driving or operating machinery for at least a full waking day after significant doses due to amnesia, impaired coordination, and residual sedation. Because formal human pharmacokinetic data are limited, all timelines should be treated as approximate; start low, wait full onset and peak, and avoid stacking doses.

    References

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