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    GVL molecular structure

    GVL Stats & Data

    Tranquili-g 4-pentanolide 4-methylbutyrolactone Gamma-methyl-gamma-butyrolactone
    PubChem
    MW100.12
    FormulaC5H8O2
    LogP0.6
    IUPAC5-methyloxolan-2-one
    InChIKeyGAEKPEKOJKCEMS-UHFFFAOYSA-N
    Chemical Class Butyrolactone
    Psychoactive Class Depressant

    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. With GHB and GBL, tolerance drops after you stop, so the amount you used to take can cause an overdose, and the gap between the dose you want and an overdose is small and hard to judge.

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

    Experience Report Analysis

    Erowid
    6 Reports
    3 Single-substance
    2001–2003 Date Range

    Demographics

    Gender Distribution

    Too few reports for a chart: gender is known from 6 reports, and a split is drawn only from 20 reports or more. Counts are shown instead. Why 20?

    • Male 5 of 6
    • Not Specified 1 of 6

    Reports Over Time

    Form / Preparation

    Most common forms and preparations, as a share of the 4 reports that give one

    Too few reports for bars: these forms come from 4 reports, and a bar is drawn only from 20 reports or more. With fewer, a percentage cannot tell a common effect from a rare one. Counts are shown instead. Why 20?

    • Liquid 4 of 4
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