1P-LSD (1-Propionyl-LSD)
A close chemical relative of LSD that the body appears to convert back into LSD, giving a near-identical experience. Widely used in research as a legal-gray-area LSD alternative in some regions.
How it works
Likely acts as a prodrug for LSD, activating serotonin 5-HT2A receptors.
Key facts
- Molecular weight: 379.50 g/mol
- Half-life: ~3-5 hours
- Bioavailability: Oral
- Storage: Research/reference only.
Dosing overview
- Typical dose: Varies by individual and setting
- Frequency: Occasional
- Duration: Acute effects last 8-12 hours
- Route: Oral
Protocol notes
- Taken orally on blotter or as liquid, almost identical to LSD in use and duration.
- People clear their day because effects last 8-12 hours.
Reported benefits
- Nearly identical to LSD
- Used as a research LSD analog
- Long, classic psychedelic experience
- Well-known harm-reduction profile
Possible side effects
- Long, intense experiences
- Anxiety or fear
- Raised heart rate and blood pressure
- Visual distortions for hours
Compare 1P-LSD
Research and educational reference only. Not medical advice.