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PARGY-LAD Facts

Psychedelic; Lysergamide; Serotonin 2A receptor agonist

Description

PARGY-LAD (6-propargyl-6-nor-LSD) is a semi-synthetic psychedelic of the lysergamide class. It activates serotonin receptors in the cortex, disrupting normal sensory filtering and producing the visual and cognitive shifts characteristic of classical psychedelics.[1]

Subjective effects include geometric visual patterns, time alteration, altered conceptual thinking, ego dissolution, and mood shifts. The experience is qualitatively similar to LSD — a broad shift in perception and thought — but arrives at higher doses and resolves somewhat sooner.[2][3]

PARGY-LAD does not produce physical dependence, and rapid tolerance after a single dose makes compulsive use self-limiting.[4] The primary danger is psychological — anxiety, paranoia, and disorientation scaling with dose — compounded by the near-impossibility of verifying that any sample labeled PARGY-LAD is authentic.

Dose and durationby route · individual sensitivity varies

Oral(µg)
Threshold< 50 µgLight125 – 275 µgCommon275 – 500 µgStrong500 – 700 µgHeavy700+ µg

Starts in 30 – 45 minLasts 6 – 8 hoursAfter-effects 2 – 6 hours

Body and dependence

Acute toxicity
Low
Chronic toxicity
Low
Physical dependence
None
Psychological dependence
Negligible
Withdrawal
None recorded
Compulsive redosing
Negligible

Tolerance

Builds
Rapid
Fully resets after
14 days
Carries over to
LSD; psilocybin; mescaline; DMT; AL-LAD; ETH-LAD

Effectslikely at a common dose

Perception
Music enhancement; Visual drifting; Color alteration; Color enhancement; Geometry; Visual breathing; +31 possible, including Spatial disorientation, Vestibular distortion, Visual haze / noise
Body
Stimulation; Pupil dilation; Wakefulness; Body scan awareness; +32 possible, including Insomnia, Nausea, Muscle tension
Thinking
Novelty enhancement; Introspection enhancement; Conceptual thinking; Thought connectivity; Aesthetic enhancement; Cognitive flexibility; Openness enhancement; +24 possible, including Thought loops, Suggestibility enhancement, Memory suppression
Feeling
Emotional enhancement; Euphoria; +7 possible, including Emotional lability, Anxiety, Dysphoria
Self
none likely · 10 possible, including Derealization, Depersonalization, Communication suppression
Time
Time alteration; +4 possible, including Temporal disorientation
Transpersonal
none likely · 1 possible
Awareness
none likely · 4 possible

Who shouldn't take it

Absolute
Concurrent lithium use; Psychotic spectrum disorders; Concurrent MAOI use; Concurrent tramadol use
Relative
Cardiovascular disease or uncontrolled hypertension; Prior HPPD episodes or predisposing factors; Severe hepatic impairment; Pregnancy or lactation

Combinations60 recorded

Lethal (1)
MAOIs
Dangerous (19)
Lithium; MDMA, MDA; Buspirone; DXM; GHB, Baclofen; GHB, GBL; Ibogaine; Ketamine, DXM, PCP; Local anesthetics; MDMA, Amphetamines; NDRIs (Wellbutrin); NRIs; NSAIDs; Psychedelics; Salvia, Ibogaine; SNRIs; SSRIs; Stimulants; Synthetic cannabinoids
Caution (35)
See full page: psychedex.org/substances/pargy-lad
Not graded (5)
Not listed never means safe.

Seek help immediately if

Most difficulty is psychological (intense fear, panic, confusion) and passes with calm support — the signs below mean seek emergency help:

  • Very high body temperature; hot, dry skin
  • Seizures
  • Chest pain; fast or irregular heartbeat
  • Severe muscle rigidity, tremor, or twitching (possible serotonin syndrome)
  • Cold, pale, or blue fingers/toes — severe vasoconstriction (notably NBOMe / DOx)
  • Persistent vomiting; unconsciousness; uncontrollable agitation or risk of self-harm

What to do

  1. Stay calm and reassure — remind them they took a drug and the effect will pass
  2. Move to a calm, quiet, safe space with low light; reduce noise and sensory input
  3. Keep them from harm — they may act on fear or confusion; stay with them, don't leave them alone
  4. Talk them down gently; don't grab or restrain unless they're in danger
  5. For the medical signs above (overheating, seizure, chest pain, vasoconstriction, unresponsive) call emergency services
  6. If overheating, cool the body; be ready to give rescue breaths / CPR

The experience is time-limited and usually resolves with calm reassurance in a safe setting — psychological first aid, not medication. Serious physical harm is uncommon for classic psychedelics (LSD, psilocybin) but real for some potent phenethylamines (NBOMe, DOx), where hyperthermia, seizures, and vasoconstriction warrant emergency care.

988 Suicide & Crisis LifelineFireside Project: 62-FIRESIDE

Version r1 · Not medical advice

References

  1. [1]
    ^Nichols DE (2016) Psychedelics — Pharmacological Reviews doi:10.1124/pr.115.011478
  2. [2]
    ^Shulgin (1997) TiHKAL: The Continuation
  3. [3]
    ^(2024) PARGY-LAD — PsychonautWiki Link
  4. [4]
    ^de la Fuente Revenga M, Jaster AM, McGinn J, Silva G, Saha S, Gonzalez-Maeso J (2022) Tolerance and Cross-Tolerance among Psychedelic and Nonpsychedelic 5-HT2A Receptor Agonists in Mice — ACS Chemical Neuroscience doi:10.1021/acschemneuro.2c00170
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