IHCH-7113 - Am I possibly the first person who tried it? + with report
"IHCH-7113 is a serotonin 5-HT2A receptor agonist and serotonergic psychedelic of the pyridopyrroloquinoxaline family, derived by structural simplification of the atypical antipsychotic lumateperone. In animal studies, it produced a head-twitch response comparable to DOI or LSD. It is not scheduled in the US or Canada, and no human pharmacology data exists in the published literature."
Possibly a psychedelic, my friend introduced it to me, and I decide to try it. Previously I've only tried DPT, thus I would be able to recognize if it produces a similar effect.
In conclusion, it does.
Here's the full report below:
2026/5/9 20:07 — IHCH7113 Trial
This report documents the subjective experience of an IHCH-7113. 250 mg of the IHCH-7113 (freebase) was dissolved in 100 mL of an PEG400. It didn't dissolve cleanly — estimated concentration is roughly 2 mg/mL. Going by that rough estimate, the total dose accumulated over the session was approximately 10 mg, which should fall within the threshold range estimated from animal studies (5–20 mg).
20:07 — 1 mL. No effect.
20:56 — 1 mL. No effect.
21:49 — 3 mL. A bold redose with exponential logic. As I'd later understand, this initiated a complete (was it truly complete?) psychedelic trip — somewhat different in character from the familiar mushroom or ayahuasca experiences.
22:14 — Took a hot shower — which may well explain the physical sensations that followed.
22:22 (+/−) — Racing thoughts. Familiar worries circling back, alongside a fear of the unknown — after all, this isn't a substance that's been used by the likes of Shulgin, Nichols, Bluelight, or the r/ResearchChemicals community. That set an uneasy tone from the start.
22:35 (+/−) — Persistent goosebumps, accompanied by noticeably negative thoughts. No visual hallucinations; no auditory changes. Overall sensory perception remained intact. A flood of memories surged up. I began to lean toward thinking the problem wasn't entirely the substance itself, but rather my own psychological reaction to it. Started recalling a bad experience with gaboxadol. Things were still looking grim.
22:43 (+/−) — Memories keep surfacing. A bad, deeply uncomfortable feeling. Tried listening to music to steady myself and considered putting on headphones — but still couldn't calm down, kept asking myself obsessively: "What is actually wrong?"
22:44 (+) — Shortly after the shower: mild nausea, along with an intense heat sensation — not a gentle warmth, but a heat from somewhere deep inside. Without a thermometer I couldn't tell whether my temperature was actually elevated; a quick hand-to-forehead check didn't suggest it was. The hot shower likely compounded the physical discomfort that followed. I started to wonder whether this wasn't purely the substance, but also my own mental state playing a role. Still, the absence of any hallucinations was unsettling.
23:10 (++) — The heat intensified significantly, accompanied by shivering. Since it persisted, I got up to turn on the air conditioning. What followed was a compulsive, repetitive fixation on "heat" — the chat logs show me typing "so hot" over and over, which tells me the sensation had become the absolute center of my consciousness, overwhelming everything else.
Reflecting on it afterward: this is similar to some of the reports in PiHKAL — whatever your mind locks onto becomes amplified. The hot shower seeded that physical anchor, and it just kept growing — which may say more about priming than about the substance's inherent properties.
23:33 (++) — An inexplicable urge to smile, or an involuntary smile appearing on my face — even as the heat still dominated my awareness.
23:35 (++) — Cognition clearly altered, starting to feel fragmented. Still wasn't sure whether the substance was actually working. In hindsight, this was obviously not mere placebo suggestion.
23:43 (++) — Eyes closed: imagery of multi-legged, long-limbed, segmented worm-like forms; the structural formula of phenethylamine; expanding ripples spreading outward.
23:50 (++) — Heat still unrelieved despite the AC. Laughing involuntarily.
23:58 (++) — Clear open-eye visuals beginning. The throw pillow in front of me appeared pixelated.
00:00 (++) — Staring at my hand and its scars: the hand's appearance began to shift — colors deepening, its sense of presence flickering, fading in and out.
00:03 (++) — Difficulty focusing. If I didn't actively try to focus, my visual field seemed to tremble. The heat, still inescapable.
00:07 (++) — More classically psychedelic imagery emerged: ornate patterns, floating geometric shapes, rainbow-like colors. The visual changes seemed tied to how I directed my eyes and adjusted my focus — I kept experiencing this as though I were turning some kind of dial, fine-tuning the effect.
00:10 – 02:00 (++ / +++) — My thoughts began to be carried away by the psychedelic state. A sense of curiosity and wonder toward everything around me. The heat kept returning in waves, but the emotional undercurrent began to noticeably shift. The heat was still there — but being overwritten by more interesting and engaging experiences.
Visuals became increasingly interactive during this phase: ordinary shapes seemed to be automatically organized into symbols, colors, patterns, and dynamic structures, all highly responsive to where I directed my attention.
The worm-like figures grew eyes and wings, and I found myself feeling genuinely happy. The earlier negative imagery was reinterpreted with a lighter, even endearing quality. The heat hadn't left — but emotionally, I was in a very good place, carried along by anime-adjacent imagery and cute, whimsical things.
02:00 – 02:40 (++) — Coming down gradually. Feeling a little sleepy. All in all, a pleasant journey — with a noticeable antidepressant quality. On the whole, this seems like a substance with mild psychoactive effects and a moderate duration. Still unclear whether the heat sensation is an intrinsic property of the substance or something the hot shower had triggered.
02:40 – 03:40 (+) — Pupils still dilated. Body still warm. But — goodnight.