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    Isomethadone molecular structure

    Isomethadone Stats & Data

    Depressant Opioid
    NPS DataHub
    MW309.45
    FormulaC21H27NO
    CAS466-40-0
    IUPAC6-(dimethylamino)-5-methyl-4,4-diphenylhexan-3-one
    SMILESCCC(=O)C(C(C)CN(C)C)(c1ccccc1)c1ccccc1
    InChIKeyIFKPLJWIEQBPGG-UHFFFAOYSA-N
    Chemical Class Opioid
    Psychoactive Class Depressant

    History & Culture

    Isomethadone, also known by the alternative name isoamidone, is a synthetic opioid analgesic structurally related to methadone. It was previously marketed as a pharmaceutical product under the trade name Liden, where it saw clinical use for both pain management and cough suppression. The compound has since been withdrawn from the pharmaceutical market and is no longer commercially available as a medication.

    Effect Profile

    Curated
    Opioid 5.4

    Moderate euphoria with mild pain relief and itching/nausea, low sedation

    Euphoria / Warmth×3
    7
    Analgesia×2
    4
    Sedation / Relaxation×1
    3
    Itching / Nausea×1
    4
    Based on reports from:
    Erowid Experience Reports PsychonautWiki Isomethadone

    Tolerance & Pharmacokinetics

    drugs.wiki

    Tolerance Decay

    Full tolerance 1d Half tolerance 21d Baseline ~35d
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