10:16 pm Initial effects from 25 mg ingested fifteen minutes beforehand. Getting that warm mystic rhythm and tingly sensation. Can tell this is going to be good. Things starting to move around. Been 15 minutes since I dosed. Music seems more dimensional and the bass flows through me like wine.
4-HO-DiPT
Well-documented
Well-documented
Multiple authoritative sources agree on dosing and effects.
- 5 corroborating sources
- 1 ROA with full dose ladder
- duration data present
- 30 combo interactions documented
- toxicity data (PsychonautWiki)
- classified Research-chemical
Well-documented
Multiple authoritative sources agree on dosing and effects.
- 5 corroborating sources
- 1 ROA with full dose ladder
- duration data present
- 30 combo interactions documented
- toxicity data (PsychonautWiki)
- classified Research-chemical
Aliases: Iprocin
Summary
4-HO-DiPT is a research chemical with very limited history of human use and no scientific studies on its toxicity. It is noted for its uniquely rapid onset, short duration, narrow dose sensitivity, and high intensity relative to dose. Physical side effects including muscle tremors, leg tremors, bodily malaise, and temperature dysregulation are commonly reported.
Perspectives
“This substance was a fairly standard tryptamine experience, with the relative strength of the various sensory effects adjusted. While the cognitive effects were notable and heavy, the visual effects were light, manifesting mostly as colorful ripples.”
“I feel it in my legs! Within the hour I have leg tremors, a mild physical awareness for another hour. Mentally, probably nothing.”
Dose Information
| ROA | Light | Common | Strong | Heavy |
|---|---|---|---|---|
| Oral | 3-10mg | 10-20mg | 20-30mg | 30mg+ |
Light
Common
Strong
Heavy
Sources
Oral
Dose ladder — dose.wiki, PsychonautWikiOnset, Duration & After-effects
| ROA | Onset | Comeup | Peak | Offset | Total |
|---|---|---|---|---|---|
| Oral | 15-30 min | 20-40 min | 60-90 min | 30-60 min | 2-4 hrs |
Effect Profile
53 reportsScores (1–10) curated from multiple sources:
- Effect keyword matching from PsychonautWiki catalog
- Validated against 53 Erowid trip reports
- Weighted by importance: core (×3), major (×2), minor (×1)
Psychedelic
8.8
Intense+
9/10
Strong visuals, headspace, auditory effects, and body load
Visual Intensity
×3
10
colour enhancement
autonomous entities
drifting
tracers
colour shifting
pattern recognition enhancement
+5 more
Headspace Depth
×3
10
conceptual thinking
introspection
thought connectivity
emotion enhancement
perspective distortions
personal bias suppression
+2 more
Auditory Effects
×1
10
auditory distortion
auditory hallucination
Body Load / Somatic Effects
×1
10
nausea
muscle tension
increased heart rate
Based on reports from:
Tolerance
Build-up
develops rapidly after a single use
Reset
7β14 days for baseline
Tolerance Decay
Full tolerance
1h
Half tolerance
10d
Baseline
~14d
Acute tolerance: develops within a single session β the reset numbers above apply after sustained heavy use, not after one binge. Within-session tachyphylaxis usually resets largely overnight.
Effects
Aggregated from 53 Erowid experience reports
Each bar shows the share of analyzed reports whose text mentions that effect — a mention is not always a first-hand experience (fear of an effect, something witnessed, or "did not happen" count too). Tap or hover any number for details. The second value is the Bluelight extractor's per-effect confidence; a dash means the row is Erowid-derived, which has no confidence measurement.
Effect glossary — · full glossary
Positive Effects 13
84.9%
–
56.6%
–
56.6%
–
54.7%
–
45.3%
–
41.5%
–
39.6%
–
37.7%
–
35.8%
–
30.2%
–
24.5%
–
22.6%
–
9.4%
–
Adverse Effects 9
37.7%
–
35.8%
–
26.4%
–
22.6%
–
7.5%
–
7.5%
–
7.5%
–
5.7%
–
5.7%
–
Combinations
Cross-Check 4-HO-DiPT with another substanceCommunity Trip Reports
Anecdotal first-person accounts from Reddit, Erowid, Bluelight, and Dose.wiki. Click a source to expand. Reports are harm-reduction context, not medical guidance. Tags summarise each author's own verdict — how reports are classified.
Erowid 7 reports 4 positive 2 neutral 1 cautionary visit
My dad had just left for the night and I had recently acquired some of this magic powder from an online store. This stuff is something for everyone. I love this stuff so much. The night started and I had just taken 25mgs put it into a piece of napkin and parachuted it down.
July 4th, 2003 24 mg of 4-Ho-DIPT (4-hydroxy-N,N-diisopropyltryptamine hydrochloride, Iprocin) It is the Fourth of July and no freelance fireworks are allowed in my town due to the significant drought the state is experiencing.
It had been eight days since my previous trip, a weak experience on 36 mg of DiPT, and I didn't think there would be any tolerance issues. This was to be my first time trying 4-HO-DiPT by itself, with my only experience it so far coming from mixing it with LSD once at 25 mg.
Weight : 150 lbs I have been experimenting with iprocin during the last month. I have tried it at 2, 7, 14, 25 and 30 mg. In the threshold range, it didnΒt produce any significant effects.
I acquired some 4-Hydroxy-DiPT from a friend, he bought them of the internet just before they became illegal (around may last year I think). I had also gotten a hit of acid from him, which was my first trip.
[Erowid Note: Driving while intoxicated, tripping, or extremely sleep deprived is dangerous and irresponsible because it endangers other people. Don't do it! ] Ok here it goes... Let me first start off by saying that none of this is exaggerated.
Bluelight 2 threads 2 neutral visit
Unexpected encounter Iprocin β DOSE : 40 mg oral iprocin parachuted Weight : 150 lbs I have been experimenting with iprocin during the last month. I have tried it at 2, 7, 14, 25 and 30 mg. In the threshold range, it didn't produces any significant effects.
42mg iprocin at ~23.20 in a capsule. I take garbage out and go biking at the same time. I get to that old railway bridge when I realize my tire has flattened. I have to walk home. It has been almost an hour since I swallowed the capsule and clearly that chemical has made its way to my serotonin receptors now.
Dose.wiki 1 report 1 neutral visit
This substance was a fairly standard tryptamine experience, with the relative strength of the various sensory effects adjusted. While the cognitive effects were notable and heavy, the visual effects were light, manifesting mostly as colorful ripples. Theβ¦
PiHKAL / TiHKAL
TiHKAL #17: 4-HO-DIPT
“I feel it in my legs! Within the hour I have leg tremors, a mild physical awareness for another hour. Mentally, probably nothing.”
4-HO-DiPT's nerd page
Pharmacology, chemical data, effect profiles, and more
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Helpful Links
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