1P-LSD - Substance Search

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.”

— Nervewing, nervewing.blogspot.com 150 µg sublingual

“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.”

— Dominic Milton Trott, The Drug Users Bible 150 µg oral

Dose Information TheDrug.Wiki TripSit PsychonautWiki

ROA	Light	Common	Strong	Heavy
Oral	25-75µg	75-150µg	150-300µg	300µg+

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

Based on reports from:

Effect Index Microcosms Bluelight Big & Dandy Thread Erowid Experience Reports PsychonautWiki 1P-LSD The Drug Users Bible 1P-LSD

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

LSD

90%

other lysergamides

80%

psilocybin/psilocin

60%

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

Trip Reports Effect Index

Microcosms nervewing

1P-LSD's nerd page Pharmacology, chemical data, effect profiles, and more

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Helpful Links

📘 Experience Reports 📖 TheDrug.Wiki 📖 PsychonautWiki 📖 Bluelight 📖 The Drug Users Bible