
#116 Meet The World’s Greatest Psychedelic Receptor Scientist
The Giants Shoulder
Field history and stigma around 'psychedelic' research
Bryan explains how few studied psychedelic receptors and how funding language forced use of 'hallucinogen'.
Bryan L. Roth is a drug receptor scientist who solved the crystal structure of LSD inside a serotonin receptor and took $26.9 million from DARPA to build a non-hallucinogenic psychedelic — a compound that hits the same receptor as psilocybin, produces antidepressant effects in mice, and doesn't cause a trip.
Expect to learn how his mother's schizophrenia launched a 40-year career in pharmacology, why Salvia divinorum has zero serotonin activity and works entirely through the kappa opioid receptor, why serotonin and opioid receptors converge in the claustrum, why DARPA funded non-hallucinogenic alternatives for soldiers, how his lab screens a trillion compounds that don't physically exist, why only 100 of 26,000 protein targets have ever been drugged, and much more…
Timestamps:
00:00 Bryan L. Roth — The Man Who Builds Non-Hallucinogenic Psychedelics
02:41 Falling Into Receptor Science by Accident
04:58 When Only 5 People on Earth Studied Psychedelic Receptors
06:07 Why "Psychedelic" Was Banned From Research Grants
07:28 The 2016 Papers That Changed Everything
08:26 The Scientist Friend Who Got "Cured" by Psilocybin
10:41 The Vietnam Vet With a Gun in His Mouth — Ibogaine's Power
12:50 What Is Ibogaine and Why Can It Kill You?
18:06 Why the Kappa Opioid System Breaks Reality
19:07 The Hidden History of Psychotomimetic Opioids
22:16 Why Opioid Researchers Deny Kappa Causes Hallucinations
23:18 The Claustrum: Where Serotonin and Opioid Receptors Meet
24:14 Multiple Entry Points Into Reality-Altering Brain Systems
28:35 Why Psychedelic Experiences Feel So Meaningful
29:58 DMT: "More Real Than Reality" — And Nobody Knows Why
31:28 Salvia: Becoming Plaid on a Wall
33:48 Trump's $50M Psychedelic Order Won't Buy One Clinical Trial
35:33 No Other Psychedelic Touches the Kappa Receptor
38:10 The Real Reason He Built a Non-Hallucinogenic Psychedelic
41:33 DARPA: More Psychiatric Casualties Than Physical in the Military
44:48 Biased Agonism: Stripping the Trip From the Therapy
47:19 How GPCRs Work and Why Drug Design Is Still Trial and Error
49:50 People Who Will Never Touch a Psychedelic But Do Cocaine Weekly
52:27 "I Don't Discuss That" — Whether He's Taken Psychedelics
52:47 Screening a Trillion Drugs That Don't Exist
55:02 The Real Bottleneck: 26,000 Targets, Only 100 Drugged...
Email for sponsorship enquiries: evan@thegiantsshoulder.com ❤️ Subscribe to our main channel - https://www.youtube.com/@thegiantsshoulder?sub_confirmation=1💚 Follow on Spotify - https://open.spotify.com/show/5m3Gta5MtIYdk59pb2GJ7M?si=Ka2rAQv7TyqiC9wvGwERpA💜 Follow on Apple Podcasts - https://podcasts.apple.com/ie/podcast/the-giants-shoulder/id1752486249Download my FREE EBook 26 Neuroscience Books for 2026 HERE: https://thegiantsshoulder.com/


