EA-3167
Encyclopedic
Encyclopedic
Typical encyclopedia coverage. Cross-reference for important decisions.
- 2 corroborating sources
- 1 ROA with full dose ladder
- duration data present
- 30 combo interactions documented
- classified Research-chemical
- dose data not in PW/TripSit (unverifiable)
- 2 corroborating sources
- 1 ROA with full dose ladder
- duration data present
- 30 combo interactions documented
- classified Research-chemical
- dose data not in PW/TripSit (unverifiable)
Aliases: Hl-031120
Summary
Developed as an incapacitating chemical weapon; a single dose of approximately 0.2-0.3 mg intramuscularly can incapacitate for up to 10 days. Physostigmine is the preferred medical countermeasure but requires repeated administration. Volunteer studies and civilian exposures reported lingering mood and cognitive disturbances for months.
Dose Information
Dose basis. Ranges reflect declassified Edgewood volunteer data indicating incapacitating effects at microgram-per-kilogram doses; values here are for context only and not a recommendation for use. Individual sensitivity is highly variable; severe, prolonged delirium and medical complications can occur within this range. Evidence base: Edgewood/NRC analyses of glycolate agents report EA-3167 causing incapacitation with central effects in the low µg/kg range and durations of 96–240 h. (Dose figures and this note are from Drugs.Wiki.)
| ROA | Light | Common | Strong | Heavy |
|---|---|---|---|---|
| Intramuscular | 1-2.5µg/kg | 2.5-4µg/kg | 4-6µg/kg | 6µg/kg+ |
Sources
Intramuscular
Dose ladder — Drugs.WikiOnset, Duration & After-effects
| ROA | Onset | Comeup | Peak | Offset |
|---|---|---|---|---|
| Intramuscular | 1-2 hrs | 2-6 hrs | 24-72 hrs | 96-240 hrs |
Effect Profile
Scores (1–10) curated from multiple sources:
- Effect keyword matching from PsychonautWiki catalog
- Weighted by importance: core (×3), major (×2), minor (×1)
Low visuals, body load, and headspace
Tolerance
Tolerance Decay
No systematic data on tolerance. Given the prolonged single‑exposure intoxication and absence of repeated recreational use, practical tolerance build is unlikely to be characterized. Conservatively assume at least several weeks before baseline cognition and cholinergic tone normalize after severe intoxication.
Effects
Effect glossary — · full glossary
- Extreme Dry Mouth And Dehydration
Combinations
Cross-Check EA-3167 with another substanceHelpful Links
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The PsychonautWiki Journal logging app doesn't include every substance. To track EA-3167 there, start adding an ingestion, search for the name, and choose to add it as a custom substance. Paste these values:
EA-3167 Source: SubstanceSearch (substancesearch.com) Intramuscular dose (µg/kg): threshold 1 · light 1-2.5 · common 2.5-4 · strong 4-6 · heavy 6+ Intramuscular duration: onset 1-2h · come-up 2-6h · peak 24-72h · offset 96-240h · after-effects 480h Note: ranges are harm-reduction guidance, not a prescription. Start low, go slow, and test your substances.
Tip: for quicker logging you can also add a Custom Unit in the app, e.g. common dose ~ 3.25 µg/kg (Intramuscular).
The app keeps custom substances simple, so the full dose ranges live in the description text above. Ranges are harm-reduction guidance, not a prescription.
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