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    Nitemazepam molecular structure

    Nitemazepam Stats & Data

    3-hydroxynimetazepam
    NPS DataHub
    MW312.3
    FormulaC16H14N3O4
    CAS40762-03-6
    IUPAChydrogen 3-hydroxy-1-methyl-7-nitro-5-phenyl-2,3-dihydro-1H-1,4-benzodiazepin-2-one
    SMILESO=N(=O)c1ccc2N(C)C(=O)C(O)N=C(c3ccccc3)c2c1.[H+]
    InChIKeyQRWVNMAJJIQCEG-UHFFFAOYSA-O
    Chemical Class 1,4-Benzodiazepine
    Psychoactive Class Depressant

    History & Culture

    Nitemazepam, also known as 3-hydroxynimetazepam, is a benzodiazepine derivative that was originally synthesized during the 1970s. Despite its early development, the compound was never brought to market as a pharmaceutical product. Decades after its initial synthesis, nitemazepam resurfaced as a designer drug within the research chemical market. The substance was first definitively identified in Europe in 2017, representing part of a broader trend of novel benzodiazepines entering grey market circulation.

    Effect Profile

    Curated
    Benzodiazepine 4.7

    Strong euphoria with low anxiolysis, sedation, and cognitive impairment

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

    Tolerance & Pharmacokinetics

    drugs.wiki

    No tolerance chart. Our decay curves for these drugs were estimates, and a curve can make tolerance look longer-lasting than it is, which is the dangerous direction.

    How fast tolerance to these drugs fades after a break has not been measured well enough to draw, so don't count on a dose you used to take still being safe: after time off, start with a much smaller amount and don't use alone. Mixing sedatives with each other, with alcohol or with opioids sharply raises the risk of a fatal overdose. If you've been using regularly, don't stop suddenly: withdrawal from benzodiazepines, alcohol or GHB/GBL can cause seizures or delirium, so get medical help to cut down gradually.

    Sources: FRANK: benzodiazepines · Alcohol and Drug Foundation: GHB · FDA 2020: benzodiazepine boxed warning · FDA 2019: gabapentinoids and breathing · NHS: alcohol use disorder

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