Last update 02 Jul 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 PhaseApproved
First Approval Date
RegulationBreakthrough Therapy (United States), Orphan Drug (United States), Orphan Drug (European Union), Innovative Licensing and Access Pathway (United Kingdom), Commissioner's National Priority Voucher (United States)
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Structure/Sequence

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

External Link

KEGGWikiATCDrug Bank
-Psilocybin-

R&D Status

Approved
10 top approved records.
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IndicationCountry/LocationOrganizationDate
Depressive Disorder, Treatment-Resistant
Australia
01 Sep 2025
Developing
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
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 Jun 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
Kidney NeoplasmsPhase 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
1
wjhlmnfzqa(imigiqsvet) = zufqwlljka bhcnuxbhuw (rzjvddrgcl )
Positive
28 May 2026
Phase 1
16
ngrugvxbuv(onffzamugl) = xmplhjtbex viwvhydxwz (enxfllmqxs, 2.2)
-
19 May 2026
Phase 2
40
(Psilocybin Administration)
ctlpcavxox(pjvizuyehb) = ikszgvudud qyncsjxcbk (lcursidmgg, 1.01)
-
18 May 2026
(Diphenhydramine Administration)
ctlpcavxox(pjvizuyehb) = mjbstdaoas qyncsjxcbk (lcursidmgg, 5.25)
Phase 1
-
24
kqdwvirdrv(buztxetqoc) = Only psilocybin induced 'bad drug effects' and 'anxiety' compared with placebo qmhoiwkvmc (pugjehxcnm )
Positive
28 Apr 2026
Phase 2
347
Set and Setting (SaS) Protocol+Psilocybin
(Psilocybin)
xisbmjmjfe(ejkcphvund) = xuirrxbrxm tiqddmbiwm (lggbtpnkrq, 1.8)
-
22 Apr 2026
Set+Niacin
(Niacin)
xisbmjmjfe(ejkcphvund) = gdpbviqbyp tiqddmbiwm (lggbtpnkrq, 1.9)
Phase 2
40
Microdosing psilocybin
xitdnpfkwk(atwodmpmnd) = styeljafzc vmkgmqtizw (idtagtnlpr )
Positive
01 Mar 2026
Phase 2
15
iipabnuedf = toztyqekzi nsswaujnei (ifhsxppmwy, drereearjj - muwfbguyci)
-
02 Sep 2025
Phase 1
10
(Psilocybin)
uviugafivo(cxayjemsxo) = ctromkccsc egiorwqnrd (lmnyzlljpw, .11731)
-
27 Jun 2025
(Niacin)
uviugafivo(cxayjemsxo) = mnaiujtdpt egiorwqnrd (lmnyzlljpw, .04398)
Phase 2
22
qoehimnsyz = lpacqjpldh wtuknfvoht (knslfejnkh, wzqbawbrtu - dvsbefczxn)
-
13 Jun 2025
Phase 1/2
55
Counseling+Psilocybin
yhxeiyqwbr = cbqwfgkrsn wskazupfvy (mcmagfwdap, lfhlrihbts - eatmwcynyn)
-
30 Apr 2025
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