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    ⚠ Opioids carry significant risk of respiratory depression, physical dependence, and fatal overdose. Never combine with other depressants.

    Ketobemidone Well-documented
    Well-documented
    Multiple authoritative sources agree on dosing and effects.
    • 3 corroborating sources
    • 2 ROAs with full dose ladders
    • duration data present
    • 19 combo interactions documented

    Aliases: Kbd

    Depressant Opioid

    Summary TripSit PsychonautWiki

    Ketobemidone (also known by the brand names Ketogan, and Ketorax) is an opioid substance of the piperidine class. It belongs to a group of synthetic opioids. The mechanism of action involves binding activity at opioid receptors.

    Dose Information TripSit

    ROA Light Common Strong Heavy
    Oral 5mg 5-10mg 10-15mg 15mg+
    Rectal 2-4mg 7.5-11.5mg 11.5-20mg 20mg+
    Light Common Strong Heavy

    Onset, Duration & After-effects TripSit

    ROA Onset Peak After Effects
    Oral 45-60 min 4-8 hrs 1-8 hrs

    Effect Profile

    3 reports

    Scores (1–10) curated from multiple sources:

    • Effect keyword matching from PsychonautWiki catalog
    • Weighted by importance: core (×3), major (×2), minor (×1)

    Full methodology

    Opioid 6.3
    Strong 6/10

    Strong euphoria with moderate itching/nausea, mild pain relief, low sedation

    Euphoria / Warmth ×3
    10
    physical euphoria euphoria cognitive euphoria mood lift
    Analgesia ×2
    4
    analgesia
    Sedation / Relaxation ×1
    3
    sedation
    ⚠ Itching / Nausea ×1
    7
    nausea constipation dry mouth
    Based on reports from:
    Erowid Experience Reports PsychonautWiki Ketobemidone
    View methodology →

    Tolerance

    Build-up develops within days of regular use; analgesic tolerance faster than respiratory depression tolerance
    Reset 7–14 days for partial reset; full reset may take weeks — tolerance loss greatly increases overdose risk

    Tolerance Decay

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

    Effects Erowid

    Aggregated from 3 Erowid experience reports

    Positive Effects 1

    Euphoria 100.0% 70%

    Adverse Effects 1

    Nausea 100.0% 70%

    Combinations TripSit

    Cross-Check Ketobemidone with another substance

    Community Trip Reports

    Anecdotal first-person accounts from Reddit, Erowid, and Bluelight. Click a source to expand. Reports are harm-reduction context, not medical guidance.

    Erowid 3 reports 1 positive 2 neutral visit
    A Pleasant Trip positive exp #61428

    I got a hold of 3 Ketogan suppositories. They each contained 10 mg ketobemidone. I took one during an evening I was a little bored and layed flat on the bed waiting for the pill to take its effects. As I then proceeded to sit in my chair, I slowly began feeling a lift in my mood.

    Christoffer · 10 mg rectal / smoked
    Noticing the All-to-Familiar Effects neutral exp #90282

    A Schoolday on Ketobemidone It happened in 2008 during 10th. Grade. I live in Denmark, and as some of you may know, Denmark is the country that prescribes the most Ketobemidone (known as Ketogan here), at least in Scandinavia.

    T-man · 25 mg oral
    A True Bliss neutral exp #112389

    I remember it like it was yesterday, summer of 2017 and my first time trying a 'real' opiate. I headed over to my good friends apartment and he had the pills (he was selling all kinds of things speed, cocaine and pills) the godly Ketogan [Ketobemidone & Dimethylaminodiphenylbutene] pills.

    OpiateLove · 5 mg oral / smoked / 5 mg oral / 1 cig. smoked
    Ketobemidone's nerd page Pharmacology, chemical data, effect profiles, and more
    →

    Helpful Links

    💊 Pill Identifier 📘 Experience Reports 📖 TripSit 📖 PsychonautWiki