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§2.2.19 · Chemicals › Psychedelics

LSD

D-lysergic Acid Diethylamide

Also known as Lucy · Acid

Acute: Moderate riskDependency: Lower risk

Images

Quick reference

Routes
Oral
Form
Blotter
Shulgin rating
+++

Duration

Onset
1 Hour
Total duration
12 Hours

Experience

Primary effects

  • Profound perceptual shifts, including visual distortions of shapes, patterns, and materials, and altered spatial perception like the "dollhouse effect" where exteriors appear as interiors.
  • Causes a temporary but profound shift in perception, influencing worldview positively and intimately connecting with the outdoors and nature.
  • Delicate excitation of senses beyond vision, accompanied by an aura of headspace.

Peak character

  • A state of wonderment at visuals and sensory excitation, with a gentle, non-threatening, and pleasant mood.

Negatives / side effects

  • Panic upon onset, especially if the timing or dosage is misjudged.

Aftereffects / comedown

  • Leaves a long-term, profound, and positive impression on one's worldview.

Reference dosage

Reference ranges from third-party harm-reduction databases. Individual response varies enormously — start lower than you think.

Any route
threshold20ug+
light25ug+
common50ug+
strong150ug+
heavy400ug+

Reagent testing

Recommended reagents
EhrlichHofmannMarquis
Expected reactions
EhrlichPurple/violet
HofmannBlue → purple
MarquisPurple/black (slow)

Adulterant detection: CRITICAL: Any blotter that does NOT turn purple with Ehrlich is not LSD — it may be an NBOMe compound. NBOMe compounds are active at similar doses to LSD but are far more dangerous. Marquis going orange/brown suggests phenethylamine (25x-NBOMe family).

The Ehrlich test is the single most important harm-reduction test for blotter. Always test before use. A bitter taste on a blotter tab is also a warning sign of NBOMe compounds (LSD is essentially tasteless).

Source

Reference fields and narrative for LSD extracted from The Drug Users Bible by Dominic Milton Trott (MxZero Publishing, 2022).

drugusersbible.com

Harm reduction notice

This platform provides educational and harm-reduction information adapted from public reference material. It does not endorse, encourage, or facilitate drug use. It is not medical advice. If you or someone near you may be in a medical emergency, contact local emergency services immediately.