Home
    Disclaimer
    πŸ§ͺ This is a research chemical with limited data on its long-term health effects, toxicity profile, and safe dosage ranges.

    MBDB Encyclopedic
    Encyclopedic
    Typical encyclopedia coverage. Cross-reference for important decisions.
    • 3 corroborating sources
    • 1 ROA with full dose ladder
    • duration data present
    • 19 combo interactions documented
    • classified Tentative
    • classified Research-chemical

    Aliases: Eden, Methyl-j

    Summary TripSit

    A rare entactogenic drug and analogue of MDMA possibly first synthesised by David Nichols. Potentially less potent than related drugs of its type. Sometimes referred to as a 'watered down MDMA.'.

    Perspectives

    “Generally very, very friendly, very quiet effect. I can read easily, but looking at pictures in most books is relatively meaningless. Distinct de-stressing effect, to the point where it’s too much trouble to set out to do anything at all, really. There is just no drive, and it isn’t even bothersome to be missing it. Do I like it? Yes, very much. Feel that I’ve just begun to explore it, though. Would I consider this material in therapy? Well, sure, it’s worth trying. Destressing would be excellent, and better than MDMA in some ways, but the empathy and intuition levels have yet to be explored in a therapy setting. I feel that they may be somehow lower.”

    Dose Information TripSit

    ROA Light Common Strong Heavy
    Oral 150-180mg 180-210mg 210-250mg 250mg+
    Light Common Strong Heavy

    Onset, Duration & After-effects TripSit

    ROA Onset Peak After Effects Total
    Oral 0.5-2 hrs 3-8 hrs 1-12 hrs 3-8 hrs

    Effect Profile

    15 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

    Psychedelic 2.4
    Light 2/10

    Strong body load with mild visuals, low headspace

    Visual Intensity ×3
    5
    color enhancement tracers pattern recognition enhancement
    Headspace Depth ×3
    1
    time distortion
    Auditory Effects ×1
    0
    Body Load / Somatic Effects ×1
    9
    nausea vasoconstriction teeth grinding increased heart rate sweating
    Empathogen 4.6
    Moderate+ 5/10

    Moderate stimulation, sensory enhancement, and euphoria with low empathy

    Empathy / Social Openness ×3
    2
    increased sociability
    Euphoria / Mood Elevation ×2
    6
    euphoria cognitive euphoria
    Stimulation ×1
    7
    stimulation wakefulness teeth grinding increased heart rate
    Sensory Enhancement ×1
    7
    tactile enhancement color enhancement increased libido
    Stimulant 4.8
    Moderate+ 5/10

    Strong anxiety/jitters with moderate stimulation and euphoria, mild focus

    Stimulation / Energy ×3
    6
    stimulation wakefulness alertness enhancement
    Euphoria / Mood Lift ×2
    6
    euphoria cognitive euphoria
    Focus / Productivity ×2
    4
    analysis enhancement thought acceleration
    Anxiety / Jitters ×1
    10
    anxiety increased heart rate teeth grinding vasoconstriction sweating

    Tolerance

    Build-up develops rapidly after a single use
    Reset 7–14 days for baseline

    Tolerance Decay

    Full tolerance 1h Half tolerance 10d Baseline ~14d

    Effects Erowid

    Aggregated from 15 Erowid experience reports

    Positive Effects 9

    Introspection 66.7% 70%
    Empathy 66.7% 70%
    Tactile Enhancement 60.0% 70%
    Euphoria 40.0% 70%
    Stimulation 33.3% 70%
    Music Enhancement 33.3% 70%
    Color Enhancement 26.7% 70%
    Body High 20.0% 70%
    Focus Enhancement 20.0% 70%

    Adverse Effects 7

    Jaw Clenching 40.0% 70%
    Anxiety 40.0% 70%
    Headache 33.3% 70%
    Sweating 33.3% 70%
    Confusion 33.3% 70%
    Pupil Dilation 26.7% 70%
    Nausea 20.0% 70%

    Combinations TripSit

    Cross-Check MBDB 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 8 reports 1 positive 7 neutral visit
    A Pleasant MBDB Adventure positive exp #15391

    Upon aquiring an unknown, pre-measured dose of MDBD, I tried to find some information on it so that I would know what I was getting myself into...no such luck. No where could I find any information on MDBD, so I had to rely on the source, who told me that it was MDMA'ish, and it was a good dose, and that it was not act...

    Mbdb · oral
    A Beautiful Day by the Sea neutral exp #9790

    This was the first time I or my friend knowingly tried MBDB. Both have more or less extensive experience with some closely related substances, however. /--/--/--/--/--/--/--/--/--/--/--/--/--/--/--/- Date: 18.8.2001 My dose: MBDB 180 mg (capsule) (c. 3.15 mg/kg) My friend's dose: MBDB 185 mg (capsule) (c.

    kontrol · 180 mg oral
    Too Zealous neutral exp #24858

    Mindset: I was really excited about trying this rare phenethylamine for the first time and was in a positive frame of mind. Setting: Isolated, woodsy environment in which I am very comfortable and which has been the scene of many memorable entheogenic experiences in the past.

    Cerebronaut · 500 mg oral
    First Encounter with Mbi Dibi neutral exp #10514

    Prelude The opportunity finally presented itself for me to pay a visit to the shrine of the little known African deity Mbi Dibi. I've had plenty of experience with the MDMA family of entheogens, but I'd never knowingly taken MBDB.

    Murple · 180 mg oral
    In the Garden of Eden neutral exp #26415

    The common sentiment I've been reading has been that MBDB is not a viable subsitute to MDMA, nor is it worth the trouble to procure and imbibe. I have to disagree with these points of view.

    Nog · 167 mg oral / 66 mg oral
    Instant Calm neutral exp #12970

    All right, back for round 2. Last time my 185mg oral dose I reported on left me wondering if the dose could be cut in half with insufflation. Intrepid explorer as always.. I carefully weighed out 100mg (not that I think it was too important with MBDB.. the divide-and-conquer method would be fine with this material).

    OHM · MBDB (Methyl-J) · 100 mg insufflated
    Insufflated Eden neutral exp #15087

    Since nobody has mentioned insufflation as a route of ingestion for MBDB aka Eden aka Methyl-J, and I could find little data regarding this route, I dreamed I experimented so we at least have SOMETHING to go on. 9:30 - App 19.44mg MBDB insuffilated. Smells/tastes like a not quite pure extraction.

    bluestemz · 19 mg insufflated / 10 mg insufflated
    Not a Substitute for MDMA neutral exp #14386

    Because of its claimed similarities to MDMA, I had been curious about MBDB for quite a while. I consider myself to be moderately experienced, particularly considering research chems and MDMA. Many people might have the same questions I had, so I will attempt to run a qualitative comparison between it and MDMA.

    Jackburbee · 250 mg oral

    PiHKAL / TiHKAL Shulgin

    PiHKAL #128: METHYL-J

    “Generally very, very friendly, very quiet effect. I can read easily, but looking at pictures in most books is relatively meaningless. Distinct de-stressing effect, to the point where it’s too much trouble to set out to do anything at all, really. There is just no drive, and it isn’t even bothersome to be missing it. Do I like it? Yes, very much. Feel that I’ve just begun to explore it, though. Would I consider this material in therapy? Well, sure, it’s worth trying. Destressing would be excellent, and better than MDMA in some ways, but the empathy and intuition levels have yet to be explored in a therapy setting. I feel that they may be somehow lower.”

    β€” Alexander Shulgin, PiHKAL (with 210 mg)

    Helpful Links