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

    1P-LSD Well-documented
    Well-documented
    Multiple authoritative sources agree on dosing and effects.
    • 5 corroborating sources
    • 1 ROA with full dose ladder
    • duration data present
    • 19 combo interactions documented
    • PubChem toxicity data
    • classified Research-chemical

    Aliases: 1p, 1plsd

    Summary TheDrug.Wiki TripSit PsychonautWiki

    1P-LSD is a research chemical and LSD analogue that first appeared in 2015. It acts as a prodrug for LSD, being rapidly metabolized into LSD in the body, with effects reported as virtually indistinguishable from LSD itself. Typically sold on blotter paper.

    Perspectives

    “It is hypothesized that 1P-LSD is a prodrug to LSD, meaning that they would be functionally indistinguishable in vivo. An enjoyable and valuable substance with subtle but distinguishable differences from LSD.”

    “I have experienced so many beautiful moments, and I believe learned much, through the use of this remarkable drug. Mild aftereffects are well worth enduring, given the perceived positives and benefits.”

    Dose Information TheDrug.Wiki TripSit PsychonautWiki

    ROA Light Common Strong Heavy
    Oral 25-75Β΅g 75-150Β΅g 150-300Β΅g 300Β΅g+
    Light Common Strong Heavy

    Onset, Duration & After-effects TheDrug.Wiki TripSit PsychonautWiki

    ROA Onset Comeup Peak Offset After Effects Total
    Oral 19-60 min 0.75-2 hrs 3-5 hrs 3-5 hrs 6-24 hrs 8-12 hrs

    Effect Profile

    143 reports

    Scores (1–10) curated from multiple sources:

    • Effect keyword matching from PsychonautWiki catalog
    • Validated against 112 Erowid trip reports
    • Weighted by importance: core (×3), major (×2), minor (×1)

    Full methodology

    Psychedelic 8.8
    Intense+ 9/10

    Strong visuals, headspace, auditory effects, and body load

    Visual Intensity ×3
    10
    external hallucinations internal hallucinations color enhancement autonomous entities drifting tracers +11 more
    Headspace Depth ×3
    10
    conceptual thinking introspection feelings of interdependent opposites recursion emotion enhancement feelings of self-design +7 more
    Auditory Effects ×1
    10
    auditory distortion auditory enhancement auditory hallucinations auditory hallucination synaesthesia
    Body Load / Somatic Effects ×1
    10
    nausea vasoconstriction muscle tension muscle spasms increased heart rate

    Tolerance

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

    Tolerance Decay

    Full tolerance 1d Half tolerance 7d Baseline ~14d

    Rapid within‑session tachyphylaxis; re‑dosing the same day yields little additional effect. Substantial decay by ~7 days; near‑baseline at ~14 days for most, though individual variability exists.

    Cross-Tolerances

    Effects Erowid Bluelight

    Aggregated from 112 Erowid and 31 Bluelight experience reports

    Positive Effects 73

    Visual Distortions 68.5% 82%
    Color Enhancement 65.7% 88%
    Music Enhancement 54.5% 88%
    Stimulation 42.7% 80%
    Empathy 38.5% 85%
    Euphoria 36.4% 89%
    Introspection 35.7% 83%
    Focus Enhancement 33.6% 80%
    Tactile Enhancement 30.8% 85%
    Closed-Eye Visuals 30.0% 92%
    Joy 22.6% 84%
    Geometric Imagery 22.6% 87%
    Body High 20.3% 81%
    Visual Trails 19.4% 89%
    Awe 19.4% 80%
    Surface Breathing 16.1% 85%
    Patterning 16.1% 88%
    Insight 16.1% 76%
    Morphing 16.1% 83%
    Contentment 16.1% 79%

    Adverse Effects 55

    Anxiety 51.0% 84%
    Confusion 38.4% 86%
    Thought Disorganization 29.0% 74%
    Auditory Effects 28.7% 85%
    Fear 25.8% 88%
    Dissociation 19.6% 85%
    Panic 19.4% 85%
    Nausea 18.9% 82%
    Muscle Tension 18.9% 75%
    Sedation 18.9% 80%
    Body Load 16.1% 82%
    Memory Suppression 15.4% 76%
    Depersonalization 12.9% 84%
    Entity Imagery 12.9% 82%
    Insomnia 12.9% 88%
    Thought Loops 12.6% 83%
    Headache 9.8% 80%
    Restlessness 9.7% 78%
    Motor Impairment 9.1% 78%
    Sweating 8.4% 80%

    Combinations TripSit

    Cross-Check 1P-LSD with another substance

    Trip Reports Effect Index

    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 3 positive 3 neutral 2 cautionary visit
    In the Presence of Jesus Christ positive exp #118574

    Alright this is the one that truly did it for me, this is where I found my religion. THE most life-changing experience I've ever had is with this compound, it completely knocks everything else out the window.

    Horhe · 25 - 200 ug
    This Calmness I Have Been Craving for So Long positive exp #106975

    No one really thinks about what happens after an acid trip, mild or otherwise. They seem only to focus on the trip and want/hope to see weird and wonderful things and with no real physical side effects. Sounds fun.

    Mrs_Fry · 2 hits / smoked
    A Profound Healing Constructive Trip positive exp #107233

    First things first: 100Β΅g taken at T:00, another 100Β΅g taken two hours later, on an empty stomach. As others have noted, this stuff is very slow on the come-up; 2 hours after my first dose I still felt no changes at all. Perhaps this is because I am a big guy physically, I dunno.

    rasputin1963 · 100 ug oral / 100 ug oral
    The One Trip neutral exp #109693

    IΒ’ve never written a trip report quite like this one before. The experience itself requires an insight into previous experiences, which I will try to give briefly in order to save space but this is inherently a long read.

    Paradox · 150 mg sublingual
    Microcosms neutral exp #112463

    Preface: Woke up in the morning with a friend. She did some cocaine to start her morning and muster up the energy to go to work and I took a bump too. After smoking some weed too we went out and got breakfast together before she left and I went back home. By the time I embarked on this journey it had mostly worn off.

    nervewing · 1 bump insufflated / 150 ug oral / repeated smoked
    Smooth as Glass But... neutral exp #108642

    1P-LSD (1-propionyl-lysergic acid diethyl amide) - where the P may well stand for 'placebo'. But really, who's to say for sure? Background: I am almost 40, and had plenty of experience with drugs such as: marijuana (copious amounts), LSD-25, Magic Mushrooms in my early 20s.

    McLaowai · 100 ug oral
    The Journey from a Bad Trip to a Great Trip cautionary exp #116032

    The Journey from a Bad 100ΞΌg Trip to a Great 200ΞΌg Trip A 1p-LSD Trip Summary 1. Preface The following is a summary of my experiences with LSD over a period of around two years. This summary comprises four trips.

    Another Traveler · 100 - 200 ug sublingual
    There Is No 1P-LSD cautionary exp #113404

    This is a long story. It has two perspectives. (1) I woke up one morning, took a moderate dose of 1P-LSD, had a psychotic break that lasted three days, and have continuing psychological issues as a result of the experience.

    Pat · 1 hit oral

    Bluelight Reference Guide Bluelight

    Lysergamides The Big & Dandy 1P-LSD Thread - Volume 2

    This is the second installment of the 1P-LSD B&D. To visit Volume 1, click here. _______________________________________ Welcome to the Big & Dandy 1P-LSD Thread, Volume 2 1-propionyl-lysergic acid diethylamide Introduction 1P-LSD, NP-LAD or 1-Propionyl-lysergic acid diethylamide is a research chemical and novel LSD an...

    Read full thread on Bluelight β†’

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