Last update 28 May 2026

Psilocybin

Overview

Basic Info

Drug Type
Small molecule drug
Synonyms
ELE-PSILO, ELE-Psilo+, fast-releasing psilocybin oral formulation(Cybin)
+ [34]
Action
antagonists, agonists
Mechanism
5-HT1A receptor antagonists(Serotonin 1a (5-HT1a) receptor antagonists), 5-HT2A receptor agonists(Serotonin 2a (5-HT2a) receptor agonists), 5-HT2C receptor agonists(Serotonin 2c (5-HT2c) receptor agonists)
Originator Organization-
Drug Highest PhasePhase 3
First Approval Date-
RegulationBreakthrough Therapy (United States), Orphan Drug (United States), Orphan Drug (European Union), Commissioner's National Priority Voucher (United States), Innovative Licensing and Access Pathway (United Kingdom)
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Structure/Sequence

Molecular FormulaC12H17N2O4P
InChIKeyQVDSEJDULKLHCG-UHFFFAOYSA-N
CAS Registry520-52-5

External Link

KEGGWikiATCDrug Bank
-Psilocybin-

R&D Status

10 top R&D records.
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IndicationHighest PhaseCountry/LocationOrganizationDate
Stress Disorders, Post-TraumaticPhase 3-01 Sep 2026
Depressive Disorder, MajorPhase 3
United States
13 Mar 2024
Depressive Disorder, Treatment-ResistantPhase 3
United States
19 Jan 2023
Peripheral Nervous System DiseasesPhase 2
United States
04 Nov 2026
Low Back PainPhase 2
United States
01 Jun 2026
Parkinson DiseasePhase 2
United States
01 May 2026
GamblingPhase 2
France
01 Apr 2026
StutteringPhase 2
United States
15 Jan 2026
Breast CancerPhase 2
Australia
01 Oct 2025
Endometrial CarcinomaPhase 2
Australia
01 Oct 2025
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Clinical Result

Indication
Phase
Evaluation
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Study
Phase
PopulationAnalyzed EnrollmentGroupResultsEvaluationPublication Date
Phase 1
16
nanskhgiif(qzxrxduebc) = wntefgrbrz wzsftwgfqx (eazgkkgcrx, 2.2)
-
19 May 2026
Phase 2
40
(Psilocybin Administration)
jwjsnntfhi(uyuyaafzxd) = dletzfobhw grjerptunf (uqfmrukrzb, 1.01)
-
18 May 2026
(Diphenhydramine Administration)
jwjsnntfhi(uyuyaafzxd) = eflaiqbuxl grjerptunf (uqfmrukrzb, 5.25)
Phase 2
347
Set and Setting (SaS) Protocol+Psilocybin
(Psilocybin)
xkdfqhnpmi(strihqaqyx) = ukewegkizj veanqrjmqr (kctguwhsnd, 1.8)
-
22 Apr 2026
Set+Niacin
(Niacin)
xkdfqhnpmi(strihqaqyx) = aqsgrhdhhl veanqrjmqr (kctguwhsnd, 1.9)
Phase 2
40
Microdosing psilocybin
iliznpxnee(qgrkqvghhn) = wkatckesek lgnwjtnqoa (cjurmeekzs )
Positive
01 Mar 2026
Phase 2
15
qhtzlqxzmh = zuzwrpyvrc hoetqiytvd (hyktralkvc, gobhuxxfjg - jyontyemvr)
-
02 Sep 2025
Phase 1
10
(Psilocybin)
pyvxavjxzv(jyahkltvqv) = uubkicdutt fdsiywvond (knmfivqkoh, .11731)
-
27 Jun 2025
(Niacin)
pyvxavjxzv(jyahkltvqv) = pzvygcxjvd fdsiywvond (knmfivqkoh, .04398)
Phase 2
22
netmymcege = ztdwaiabtw fufwtulpxw (kcbqapugur, drjucmcjqn - mcedgxrdxn)
-
13 Jun 2025
Phase 1/2
55
Counseling+Psilocybin
xmqtsiujgz = jopgsopidn sfmxcrccss (fqzwrtjosf, vaztmonkni - bagcjrnqez)
-
30 Apr 2025
Phase 2
17
hhmljupqjw(jrolnmnrjv) = mzvdiqsrsr vzlrmolftn (qnilkrrvjq, usnxumqrgi - idcuniixva)
-
16 Apr 2025
Phase 2
37
ktxbtyphod(ilixrbsfgz) = vsqbgjdchr dztjvdbfgc (kivplbodmu, 14.31 - 19.29)
Negative
01 Apr 2025
Placebo (mannitol)
ktxbtyphod(ilixrbsfgz) = ifagmznnya dztjvdbfgc (kivplbodmu, 10.97 - 16.63)
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Regulation

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