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Pharmakon Complexes Eleusinian Kykeon–Mystery Complex
CEREMONIAL COMPLEX · ATTICA / ANCIENT MEDITERRANEAN

Eleusinian Kykeon–Mystery Complex

Eleusis · Elefsina · Mystai · Epopteia · Demeter and Kore · Kykeon · Sacred Way
Continuity disputed Bronze Age Eleusis→ · Cult historically visible Archaic–Roman Mysteries→ · Entheogen unproven Modern “psychedelic Eleusis”

Eleusis was not a lost psychedelic recipe with a Greek temple attached. It was an initiatory machine extending from Athens to the Thriasian plain: proclamation, abstention, sea-purification, sacrifice, procession, obscenity, torchlight, sleeplessness, a grain-and-mint drink, and finally an encounter inside the Telesterion that initiates were forbidden to disclose. Its mythology moved through a mother’s grief, the arrested fertility of the earth, a daughter’s partial return from the dead and the establishment of rites promising a more hopeful relation to mortality. The kykeon mattered because it condensed that passage into something swallowed. Whether it also carried an entheogenic ergot derivative remains one of antiquity’s most productive—and most repeatedly overstated—hypotheses. This dossier therefore treats the drink, the sanctuary, the priestly institution, the civic pilgrimage and the phenomenology of darkness-to-light as one complex, while keeping pharmacological possibility separate from archaeological demonstration (Mylonas, 1961; Burkert, 1987; Ustinova, 2013; Mosurinjohn and Ascough, 2026; Antonopoulos et al., 2026).

1 plant indexed Claviceps purpurea

Constituents & preparation

Attested botanical centre

The Homeric Hymn supplies a literary recipe for Demeter’s drink. It does not prove that every historical festival batch was identical, nor does it name a psychedelic additive.

Hordeum vulgare L.

Barley · Greek krithē; prepared barley meal alphita

The cereal body of Demeter’s kykeon and the agricultural sign around which Eleusinian mythology, first-fruit obligations and the mission of Triptolemus converge. The Hymn names barley meal mixed with water and tender glechon; it does not specify malt, fermentation or fungal contamination (Foley, 1994).

Family / orderPoaceae · PoalesAccepted nameHordeum vulgare L.Associated compoundsStarch, proteins and cereal metabolites; no inherently psychedelic constituentRitual functionGrain, nourishment, first fruits, Demeter’s civilising gift

Mentha pulegium L.

European pennyroyal · Greek glēchōn / blēchōn

The aromatic herb usually identified with the Hymn’s “tender mint.” Its flavour, digestive associations and place in women’s medicine make it culturally resonant, but no ancient source identifies pennyroyal itself as the visionary key. Concentrated pennyroyal oil is hepatotoxic; ordinary historical herb use and modern essential-oil ingestion must not be conflated (Caputo et al., 2021).

Family / orderLamiaceae · LamialesAccepted nameMentha pulegium L.Associated compoundsPulegone, menthone, isomenthone and volatile terpenes; chemotype variesRitual functionAromatic, medicinal and mythically specified admixture
Secondary material, contextual agent and disputed pharmakon

Water and mixing

Greek kykaō · to stir or mix

Kykeon names a mixed drink rather than one universally fixed formula. Water distinguishes Demeter’s drink from the wine she refuses in the Hymn.

Claviceps purpurea

Ergot · sclerotium on grasses and cereals

Proposed in 1978 as the hidden source of psychoactive lysergamides. No ergot residue has yet been reported from an authenticated Eleusinian kykeon vessel.

Fast and abstentions

Not an ingredient · part of the pharmacology of context

Fasting, exertion, expectation, sleeplessness, darkness, crowding, sound and sudden light could profoundly shape experience whether or not a psychoactive drug was present.

Wine, opium and mushrooms

Proposed in modern reconstructions

Poppy, psychoactive mushrooms and other additives have been suggested. None is securely demonstrated as the active principle of the Eleusinian kykeon.

Myrtle, torches and piglets

Processional and purificatory apparatus

Myrtle wreaths and bakchoi, fire, sacrificial animals and sacred objects belong to the ceremony but should not be smuggled into the drink.

Kernos and plemochoe

Ceramic forms · function debated

Vessels depicted or excavated in Eleusinian settings are not automatically kykeon cups. Identification by shape alone is insecure.

Safety note: ergot is a dangerous mycotoxin source. The historical hypothesis and recent laboratory chemistry do not constitute a safe preparation method.

Associated compounds

SourceCompoundsPharmacological significanceEvidence at Eleusis
Hordeum vulgareStarch, proteins, phenolic acids and ordinary cereal metabolites.Nutritional and sensory; not psychedelic.Documented in the Hymnic formula.
Mentha pulegiumPulegone, menthone and related monoterpenes.Aromatic and pharmacologically active; concentrated oil can cause severe hepatic toxicity.Probable identification of ancient glechon.
Claviceps purpureaErgometrine/ergonovine, ergotamine, ergosine, ergocristine, ergocornine, ergocryptine and epimers; profiles vary by strain and host.Mixed serotonergic, dopaminergic and adrenergic actions; vasoconstriction, uterotonic activity, convulsions and ergotism are major risks.Unproven no authenticated Eleusinian residue.
Hypothetical processed ergotLysergic acid amide (LSA/ergine), iso-LSA and residual simple lysergamides.Potential central serotonergic effects, but much less characterised in humans than LSD and not phenomenologically interchangeable with it.Experimental plausibility only (Antonopoulos et al., 2026).
LSDLysergic acid diethylamide; semisynthetic and first prepared in the twentieth century.Potent 5-HT2A-mediated psychedelic with broader receptor pharmacology.Absent LSD itself was not an ancient constituent.

Traditional preparation: what the evidence permits

TEXT

In the Homeric Hymn to Demeter, Demeter refuses red wine and requests water, barley meal and tender glechon. Clement of Alexandria later preserves an initiatory password beginning, “I fasted; I drank the kykeon.” Together these sources securely connect fasting and drinking, but neither discloses a hidden intoxicant (Foley, 1994; Meyer, 1999).

INFERENCE

The drink was mixed and consumed within a highly organised ritual sequence. Its precise texture, scale of production, vessel, temperature and timing remain debated. “Barley beer,” “porridge” and “potion” are interpretive translations, not equivalent archaeological facts.

ERGOT

Wasson, Hofmann and Ruck proposed that specialists separated or transformed ergot alkaloids into a psychoactive but tolerable preparation. The theory solves one puzzle—how a repeatable extraordinary state might have been induced—but creates others: dose consistency, toxicity, scale, silence in the sources and the absence of direct residue evidence from Eleusis (Wasson, Hofmann and Ruck, 1978; Mosurinjohn and Ascough, 2026).

2026 STUDY

A laboratory study demonstrated that an alkaline process available in principle to ancient crafts could hydrolyse several toxic ergopeptides in modern C. purpurea material while producing LSA and iso-LSA. This establishes chemical feasibility under tested conditions—not that Eleusinian personnel used the method, not that the resulting mixture reproduces kykeon, and not that it is safe for human consumption. The authors explicitly call for further pharmacological and toxicological evaluation (Antonopoulos et al., 2026).

The evidence ladder

SecureKykeon was ritually drunk; a prominent literary formula contains water, barley meal and glechon; fasting preceded the drink; grain and Demeter’s agricultural power were central to Eleusinian meaning.
Strongly inferredThe drink participated in the transition from privation and mourning to revelation and festivity. Ceremony, architecture and expectation were active determinants of experience.
Contextual supportErgot remains were reported at Mas Castellar de Pontós in Iberia, in a Hellenistic sanctuary associated with Demeter and Kore. This demonstrates ergot in one Demetrian ritual context; it does not transfer the find to Eleusis (Juan-Tresserras, 2002; Samorini, 2019).
Chemically possibleModern experimentation can convert an ergot alkaloid mixture toward simpler lysergamides using historically possible technology (Antonopoulos et al., 2026).
Not demonstratedThat Eleusinian kykeon contained ergot; that it reliably produced a classic psychedelic state; that priestesses possessed a standard detoxification protocol; or that the same formulation persisted for the sanctuary’s entire history.

Culture

Peoples and territories

Eleusis / Elefsina
Local cult community · priestly gene · sanctuary personnel

The sanctuary of Demeter and Kore stood on the Thriasian plain west of Athens. Eleusinian families, especially the Eumolpidae and Kerykes, held hereditary ritual offices within an institution that was local in ownership but eventually Mediterranean in reach (Mylonas, 1961; Clinton, 1974).

Athens and the Sacred Way
Athenian civic authorities · ephebes · initiates · visitors

The Greater Mysteries joined civic and sacred geographies. Sacred objects travelled to Athens; initiates gathered and purified themselves; the procession then moved roughly twenty kilometres back to Eleusis, transforming road, bridge, shrines and boundary crossings into stages of initiation.

Panhellenic and Roman Mediterranean
Greek speakers · women and men · enslaved and free participants · Roman elites

Admission was unusually broad by ancient civic-religious standards, although never simply universal: ritual purity, intelligibility of Greek and freedom from certain forms of blood-guilt mattered. Roman patronage later monumentalised the sanctuary and widened its imperial prestige (Bowden, 2010).

Mas Castellar de Pontós
Iberian settlement in the orbit of Emporion · Demeter/Kore cult contact

The ergot find comes from a different sanctuary and society in north-eastern Iberia, not from Eleusis. Its value is comparative: it places ergot, cereal processing and Demetrian cult in the same archaeological horizon without proving identity of rite or recipe (Juan-Tresserras, 2002).

History and evidence

Ritual practice

01

Preliminary initiation

The Lesser Mysteries at Agrai prepared candidates. Details remain fragmentary, but purification and eligibility preceded the Greater Mysteries.

02

Proclamation and gathering

Sacred objects were conveyed to Athens and officials proclaimed the festival. Initiation was entered through public civic order before it became secret.

03

“To the sea, initiates”

Participants moved to the coast for purification, traditionally with piglets. Sea-water, sacrifice and cleansing remade bodily and moral status.

04

Abstention and anticipation

Dietary restrictions and fasting echoed Demeter’s grief. Expectation, fatigue and the density of a mass festival altered attention before the Telesterion was reached.

05

Procession on the Sacred Way

Initiates carried ritual branches, called on Iakchos and crossed a landscape of shrines and boundaries. At the bridge, ritual mockery or gephyrismoi punctured solemnity with licensed insult.

06

Arrival, fast broken, kykeon drunk

The grain-and-mint mixture linked each initiate to Demeter’s exemplary refusal and acceptance. Its force was alimentary, mythic and possibly—but not demonstrably—psychoactive.

07

Telesterion: things done, said and shown

Modern summaries speak of dromena, legomena and deiknymena. The triad is useful but should not be mistaken for a surviving programme. Darkness, torches, sacred speech, objects and epiphany are better attested than any complete script.

08

Pannychis, dance and return

Night-long celebration, dance and concluding libations returned initiates to collective life. Initiatory secrecy preserved the event as a shared boundary: known by participation, not public description.

Mythology and cosmology

Demeter’s withdrawal. Persephone/Kore is seized into the underworld. Demeter searches, mourns and withholds fertility, bringing divine and human economies toward collapse. Agriculture is revealed not as automatic nature but as a covenant that can be suspended.

Hospitality at Eleusis. Disguised as an old woman, Demeter enters the household of Keleos and Metaneira. Iambe’s joking interrupts her grief; the failed immortalisation of Demophon exposes the dangerous distance between gods and humans; the goddess then orders her sanctuary and rites.

Partial return. Persephone returns but, having eaten the pomegranate seed, remains divided between mother and underworld husband. The mystery does not abolish death. It gives periodic absence, return and the buried seed a form through which mortality can be inhabited.

Grain and civilisation. Triptolemus receives grain and agricultural knowledge from Demeter and carries them outward. Eleusis thereby binds initiation to the technology of settled life: cultivation, storage, law, first fruits and the collective dependence of cities upon the earth.

> Blessed is the mortal who has seen these things. — Homeric Hymn to Demeter, lines 480–482, short translated sense after Foley (1994). The passage contrasts the initiate’s post-mortem lot with that of the uninitiated; it does not identify what was seen.

Priesthood, initiation and healing

Calling the Eleusinian personnel “shamans” would erase the institution’s specifically Greek civic, hereditary and initiatory form. The central figures were the hierophantēs (“shower of sacred things”), drawn from the Eumolpidae; the dadouchos or torch-bearer and sacred herald associated with the Kerykes; priestesses of Demeter and Kore; civic magistrates; and numerous subordinate officials. The initiate was a mystēs; a later or higher seeing was epopteia, and its participant an epoptēs (Clinton, 1974; Bowden, 2010).

Eleusis was not primarily a clinic, and surviving evidence does not describe kykeon as treatment for a disorder. Yet ancient witnesses repeatedly attribute existential benefit to initiation: living more joyfully, dying with greater hope, and gaining a transformed relation to the underworld. Its “healing” was civic, theological and thanatological—the reorganisation of fear, grief and mortality through embodied participation—rather than a straightforward ancient precursor of psychedelic psychotherapy (Ustinova, 2013).

Art and material culture

FormWhat it materialisesInterpretive caution
Telesterion and AnaktoronA nearly square hypostyle initiation hall with inward-facing seating and a restricted central sacred structure. Architecture gathered a large plurality around a concealed centre rather than directing them toward a theatrical stage.The ruined building does not disclose the choreography or contents of the central rite.
Ninnion TabletA fourth-century BCE votive plaque showing mortals approaching Eleusinian deities with torches, wreaths and ritual implements. It is among the most important surviving images of initiatory encounter.Individual figures, registers, vessels and lunar signs remain contested; it is not a literal storyboard.
Great Eleusinian ReliefDemeter gives ears of grain to Triptolemus while Kore extends protection: the agricultural transmission at the heart of the sanctuary’s public theology.Its grandeur concerns cult and civilisation, not direct evidence of the secret rite or kykeon.
Kernoi and plemochoaiComposite offering vessels and specialised libation forms connect grain, first fruits, procession and concluding rites.Proposed uses as kykeon containers are not universally established.
Torches, myrtle and bakchoiPortable signs organised the crowd and linked each initiate to search, purification and nocturnal illumination.They were not mere decoration: they were sensory technologies and credentials of participation.
Votive reliefs and inscriptionsDedications reveal families, offices, benefactors, deities and the long civic economy sustaining the cult.The monumental archive privileges those able to commission and inscribe; it cannot fully recover enslaved, poor or foreign initiates’ experience.

Visionary phenomenology

Ritual durationApproximately nine festival days Climactic intervalOne or more nocturnal initiatory sequences Drug durationUnknown: active agent unestablished

What survives as an account

No authorised ancient “trip report” describes ingesting kykeon, onset, peak, visions and comedown. Secrecy filtered testimony into praise, metaphor, philosophical analogy and hostile disclosure. Phenomenology must therefore be reconstructed from recurring experiential terms—fear, wandering, sleeplessness, sound, sudden light, seeing, joy, release and changed hope—without converting each term into a drug symptom.

Intensity and visionary descriptions

DimensionHistorically supportable descriptionWhat cannot be concluded
Anticipatory intensityDays of ritual obligation, travel, abstention and mass participation narrowed attention toward a single secret climax.That fasting simply “potentiated a psychedelic”; it also enacted Demeter’s grief and produced social commitment.
Somatic ordealFatigue, purification, sacrifice, long walking, crowding, nocturnal wakefulness, fear and arousal formed a strong bodily passage.That trembling or sweat proves ergot intoxication. These are common features of initiation, exertion and anxiety.
Perceptual fieldDarkness, moving torchlight, sacred voices, music or cries, concealed and revealed objects, and a dense crowd could create unstable scale, heightened salience and epiphanic perception.The exact visual content, optical technology or pharmacological mechanism.
Affective reversalAncient descriptions repeatedly move from grief, confusion and terror toward light, joy, release and sacred recognition.That this was a generic “mystical experience” separable from Demeter, Kore and the initiated community.
Ontological weightThe initiate had not merely heard a doctrine but had “seen” and thereafter possessed a different status and expectation after death.That all initiates interpreted the rite identically or believed in personal immortality in a modern sense.
After-effectsHope, blessedness, memory of participation and membership in a translocal initiatory body are recurrent claims.A clinical effect size, diagnosis-specific outcome or direct comparison with modern psychedelic therapy.

A phenomenology of passage

> After this, a wondrous light met them; pure places and meadows received them, with voices, dances, sacred sounds and holy visions. — Plutarch, fragment 178, abbreviated from the translation discussed by Widzisz (2010, pp. 469–471). The fragment may describe mystery initiation generically; Eleusinian reference is influential but not uncontested.

If the ergot hypothesis were true

The relevant comparison would not be “ancient LSD.” LSA, iso-LSA, ergometrine and other ergot-derived compounds differ substantially from LSD in potency, receptor profile, bodily burden and human evidence. A hypothetical mixture could have produced perceptual alteration, dreamlike imagery, nausea, vasoconstriction, sedation or anxiety in proportions dependent on unstable fungal chemistry. It would then have entered an already intense ritual ecology. Because the active mixture, exposure and safety are unknown, assigning a four-to-twelve-hour psychedelic duration or a canonical visionary style to kykeon would be pseudo-precision (Nichols, 2016; Castro et al., 2025; Antonopoulos et al., 2026).

Contemporary transformations

Contemporary expressions and transformations

Modern Eleusis has been successively classicised, psychologised and psychedelicised. Nineteenth- and twentieth-century archaeology recovered the sanctuary as national and European heritage; comparative religion made it the exemplary “mystery cult”; Jungian and archetypal writers read Demeter and Kore through maternal separation and psychic descent; and The Road to Eleusis recast kykeon as a lost entheogenic technology. Brian Muraresku’s The Immortality Key then carried that hypothesis into podcasts, conferences and the contemporary psychedelic public sphere (Wasson, Hofmann and Ruck, 1978; Muraresku, 2020; Mosurinjohn and Ascough, 2026).

These receptions are not simply errors. They reveal what different modern institutions desire from Eleusis: archaeology seeks recoverable practice; depth psychology an archetype of loss and return; psychedelic medicine an ancient pedigree for chemically occasioned transformation; revivalist religion a usable ritual past; tourism and cultural policy a civic identity capable of bridging ruins, port and industrial landscape. The danger begins when desire is converted into evidence—when “possibly psychoactive” becomes “known psychedelic,” or when a modern reconstruction claims continuity with a rite whose authority depended on institutions that no longer exist.

The 2026 turn in the ergot debate

RESULT

Antonopoulos and colleagues chemically demonstrated conversion of modern ergot ergopeptides toward LSA and iso-LSA using an alkaline process framed as technologically possible in antiquity. This is a genuine advance over purely verbal speculation (Antonopoulos et al., 2026).

LIMIT

The study did not analyse an Eleusinian artefact, reconstruct a documented ancient recipe, administer the product to humans or establish a safe ceremonial dose. Several authors are institutionally connected to entheogenic research organisations and Carl Ruck is a co-author; the declared absence of competing financial interests does not remove the need to evaluate its historical framing separately from its analytical chemistry.

DEBATE

Mosurinjohn and Ascough argue that “psychedelic Eleusis” is not an ancient fact recovered by science but a modern invention shaped by twentieth-century categories of religion and psychedelic experience. The chemical experiment and historiographical critique answer different questions; neither cancels the other (Mosurinjohn and Ascough, 2026).

Cultural and biological threat / conservation

FieldCurrent conditionPrimary concern
Archaeological siteThe Sanctuary of Eleusis is protected and interpreted by the Greek Ministry of Culture. Conservation concerns include weathering, visitor pressure, incomplete architectural legibility and the site’s relationship to the modern city.Protect the material archive without presenting conjectural reconstructions as the recovered secret.
Industrial ElefsinaThe modern city is also a port and industrial landscape. The 2023 European Capital of Culture programme foregrounded “transcendental mysteries,” labour, migration and industrial heritage rather than reducing Elefsina to antiquity.Environmental burden and redevelopment can either sever or renew relations among residents, shoreline, factories and archaeological heritage (Jones and Zhang, 2024).
BarleyHordeum vulgare is a globally cultivated crop and not threatened as a species.Conservation concerns lie in landraces, agricultural biodiversity and climate resilience, not ritual harvesting pressure.
PennyroyalMentha pulegium is widespread across Europe and the Mediterranean and is not a scarce sacramental commodity.Misleading wellness or reconstruction markets may encourage unsafe use of concentrated essential oil.
ErgotClaviceps purpurea is an agricultural pathogen with a broad grass-host range, managed rather than conserved.Romanticised experimentation can cause poisoning. Ergotism includes vascular, neurological, reproductive and gastrointestinal harms.

Local and global economies

Historically, Eleusis sat inside a grain economy: first-fruit offerings, agricultural tribute, sanctuary estates, pilgrim expenditure and the prestige of Athenian administration. The myth of Triptolemus converted cereal agriculture into a sacred gift whose circulation helped authorise Athenian claims to civilisational leadership. In the present, value moves through archaeological tourism, museum display, the 2023 cultural-capital legacy, academic publishing, spiritual retreats, commercial “kykeon” products and the psychedelic media economy. Most modern products bearing the name are acts of branding, not survivals of the ancient sacrament.

Legality

ObjectStatusInterpretation
Barley–mint drinkOrdinary culinary preparations of barley, water and mint are generally lawful.The historical name kykeon does not create a controlled substance.
Pennyroyal productsRegulation varies by product category and jurisdiction.Legal availability does not imply safety; concentrated oil has caused severe and fatal poisoning.
Ergot and precursorsRaw fungal material, agricultural contamination, medicines and isolated alkaloids fall under different regimes. Ergometrine, ergotamine and lysergic acid are internationally monitored precursor chemicals.Legal status is chemical- and jurisdiction-specific; collection or processing may engage poison, food-safety, medicines and precursor law.
LSDLSD is listed in Schedule I of the 1971 UN Convention on Psychotropic Substances and is tightly controlled in most jurisdictions.LSD’s modern legal status does not prove anything about ancient kykeon; it governs contemporary possession, supply and research.
Archaeological heritageRemoval, export or commercial dealing in antiquities is regulated by Greek and international cultural-property law.Reconstructing ritual does not authorise disturbance, residue sampling or private acquisition of cultural material.

Patents and the ownership of analogy

No patent can own the ancient Mysteries, the name of Demeter, barley as a natural organism or historical knowledge as such. A search of the contemporary patent landscape instead finds claims around LSD formulations, dose identification, GMP manufacturing and modified lysergic-acid derivatives—for example US11717517B2 on LSD dose identification, US20230285386A1 on immediate-release formulations, and WO2023250298A1 on modified lysergic-acid derivatives. These are not kykeon patents. Their relevance is cultural: commercial medicine can appropriate the authority of “ancient psychedelic initiation” while the protectable subject matter remains a modern molecule, formulation or clinical method (Marks, 2022).

Latest research: chemistry, neuroscience and clinical translation

Kykeon chemistry. The 2026 Scientific Reports study is the most direct recent experimental intervention. Its achievement is narrow but important: one previously hypothetical transformation is chemically possible. Historical use and human safety remain open (Antonopoulos et al., 2026).

LSD neuroscience. Modern LSD cannot be used as a retrospective assay of Eleusis. It does, however, show why lysergamide analogies attract attention. Human neuroimaging associates LSD with reduced default-mode-network integrity, broader communication between normally segregated networks and altered thalamic and basal-ganglia connectivity; 5-HT2A receptor distribution is strongly implicated (Preller et al., 2018; Avram et al., 2025).

Post-acute plasticity. A 2026 randomised crossover study in healthy participants found improved offline motor learning one day after LSD and changes in stress, cognitive flexibility and electrophysiological measures up to one week, without a detected BDNF change. The study supports further investigation but does not establish a general “critical period” or explain ancient initiation (Calder et al., 2026).

Clinical development. A 2025 phase 2b randomised trial of lysergide d-tartrate for generalised anxiety disorder reported dose-dependent symptom reduction after a single administration and informed phase 3 dose selection. Expectancy and functional unblinding remain central problems in psychedelic trials, and the pharmaceutical setting differs fundamentally from Eleusinian civic religion (Robison et al., 2025).

Linked species

Hordeum vulgare

Barley. Demeter’s grain, the material basis of the Hymnic kykeon and the agricultural-symbolic centre of the complex.

Mentha pulegium

European pennyroyal, the usual botanical identification of glechon. Aromatic and medicinal; concentrated oil is toxic.

Claviceps purpurea

Ergot fungus. Producer of variable and potentially lethal alkaloid mixtures; linked to kykeon by hypothesis, not direct Eleusinian residue.

Secale cereale

Rye, the cereal most strongly associated with later European ergotism and Saint Anthony’s Fire. It should not replace barley in the attested Eleusinian formula.

Cross-indexed compounds and complexes

Ergot / Saint Anthony’s FireSame fungus, radically different assemblage: agricultural contamination, epidemic poisoning, medieval hospitals and pharmaceutical alkaloids. CONTRAST
Soma–Haoma ComplexComparative sacred-drink problem: a canonical rite, uncertain botany and modern attempts to make pharmacology carry the whole interpretation. METHODOLOGICAL PARALLEL
Ayahuasca ComplexA living ceremonial complex with observable preparation lineages, against which Eleusis exposes the limits of reconstructing a secret extinct rite. EVIDENTIAL CONTRAST
LSD / lysergamidesModern chemical and clinical history descending from ergot chemistry, not evidence that antiquity possessed LSD. COMPOUND INCLUDE
Peganum harmala / HaomaAnother case in which a chemically active candidate can be culturally suggestive without resolving a disputed ancient identification. EPISTEMIC PARALLEL

Bibliography

Harvard style (Cite Them Right) · DOI and stable-record links · 41 sources

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Cosmopoulos, M.B. (2015) Bronze Age Eleusis and the Origins of the Eleusinian Mysteries. Cambridge: Cambridge University Press. Available at: https://doi.org/10.1017/CBO9780511820700.
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Juan-Tresserras, J. (2002a) ‘Estudis dels residus orgànics per a la identificació de possibles ritus i ofrenes’, in Pons i Brun, E. (ed.) Mas Castellar de Pontós (Alt Empordà): un complex arqueològic d’època ibèrica (Excavacions 1990–1998). Girona: Museu d’Arqueologia de Catalunya, pp. 548–556.
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Jastrzębski, M.K., Kaczor, A.A. and Wróbel, T.M. (2022) ‘Methods of lysergic acid synthesis—the key ergot alkaloid’, Molecules, 27(21), 7322. Available at: https://doi.org/10.3390/molecules27217322.
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Miedaner, T. and Geiger, H.H. (2015) ‘Biology, genetics, and management of ergot (Claviceps spp.) in rye, sorghum, and pearl millet’, Toxins, 7(3), pp. 659–678. Available at: https://doi.org/10.3390/toxins7030659.
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Plants of the World Online (POWO) (2026a) ‘Hordeum vulgare L.’ Royal Botanic Gardens, Kew. Available at: powo.science.kew.org (Accessed: 29 July 2026).
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Chemistry & pharmacology

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Ethnography, ritual & cosmology

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DOI checked
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Gagné, R. (2009) ‘Mystery inquisitors: performance, authority, and sacrilege at Eleusis’, Classical Antiquity, 28(2), pp. 211–247. Available at: https://doi.org/10.1525/ca.2009.28.2.211.
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Law, policy & patents

05 · 8 sources
Ephorate of Antiquities of West Attica (2026) ‘Eleusis’. Available at: efada.gr (Accessed: 29 July 2026).
official heritage source
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International Narcotics Control Board (INCB) (2024) Tables of the United Nations Convention against Illicit Traffic in Narcotic Drugs and Psychotropic Substances of 1988, as at 3 December 2024. Vienna: United Nations. Available at: incb.org (Accessed: 29 July 2026).
official
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Jones, Z.M. and Zhang, X. (2024) ‘Identifying the role of industrial heritage in the European Capital of Culture programme’, Built Heritage, 8, 20. Available at: https://doi.org/10.1186/s43238-024-00133-4.
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Liechti, M.E. (2023) ‘Immediate release formulations of d-lysergic acid diethylamide for use in therapy’, US Patent Application US20230285386A1, published 14 September. Available at: Google Patents (Accessed: 29 July 2026).
patent record
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Liechti, M.E. (2023) ‘LSD dose identification’, US Patent US11717517B2, granted 8 August. Available at: Google Patents (Accessed: 29 July 2026).
patent record
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Liechti, M.E. et al. (2023) ‘Lysergic acid derivatives with modified LSD-like action’, Patent Application WO2023250298A1, published 28 December. Available at: Google Patents (Accessed: 29 July 2026).
patent record
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Marks, M. (2022) ‘Patents on psychedelics: the next legal battlefront of drug development’, Harvard Law Review Forum, 135, pp. 212–237. Available at: harvardlawreview.org.
law review
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United Nations Office on Drugs and Crime (UNODC) (1971) Convention on Psychotropic Substances, 1971. Vienna: United Nations. Available at: unodc.org (Accessed: 29 July 2026).
Verified
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Primary records & sources

06 · 3 sources
Bizzotto, J. (2018) ‘The hypothesis on the presence of entheogens in the Eleusinian Mysteries’, Medicina Historica, 2(2), pp. 109–110.
journal record
Mosurinjohn, S. and Ascough, R.S. (2026) ‘Psychedelics, Eleusis, and the invention of religious experience’, Psychedelic Medicine, 4(1), pp. 35–44. Available at: https://doi.org/10.1177/28314425251361835.
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Muraresku, B.C. (2020) The Immortality Key: The Secret History of the Religion with No Name. New York: St Martin’s Press.
popular synthesis

Visionary phenomenology

07 · 7 sources
Avram, M., Fortea, L., Wollner, L. et al. (2025) ‘Large-scale brain connectivity changes following the administration of lysergic acid diethylamide, d-amphetamine, and 3,4-methylenedioxyamphetamine’, Molecular Psychiatry, 30, pp. 1297–1307. Available at: https://doi.org/10.1038/s41380-024-02734-y.
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Calder, A.E., Diehl, V.J., Lietz, M.P. et al. (2026) ‘Acute and post-acute neurobehavioral responses to lysergic acid diethylamide in healthy subjects: a randomized controlled study’, Neuropsychopharmacology, 51, pp. 1577–1587. Available at: https://doi.org/10.1038/s41386-026-02454-7.
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Castro, P.S.C.C., Leopoldo, K., Pedro, M.O.P. et al. (2025) ‘Lysergic acid amide (LSA), an LSD analog: systematic review of pharmacological effects, adverse outcomes, and therapeutic potentials’, Pharmacy, 13(4), 98. Available at: https://doi.org/10.3390/pharmacy13040098.
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Preller, K.H., Burt, J.B., Ji, J.L. et al. (2018) ‘Changes in global and thalamic brain connectivity in LSD-induced altered states of consciousness are attributable to the 5-HT2A receptor’, eLife, 7, e35082. Available at: https://doi.org/10.7554/eLife.35082.
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Robison, R., Barrow, R., Conant, C. et al. (2025) ‘Single treatment with MM120 (lysergide) in generalized anxiety disorder: a randomized clinical trial’, JAMA, 334(15), pp. 1358–1372. Available at: https://doi.org/10.1001/jama.2025.13481.
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Ustinova, Y. (2013) ‘To live in joy and die with hope: experiential aspects of ancient Greek mystery rites’, Bulletin of the Institute of Classical Studies, 56(2), pp. 105–123. Available at: https://doi.org/10.1111/j.2041-5370.2013.00061.x.
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Widzisz, M. (2010) ‘The duration of darkness and the light of Eleusis in the prologue of Agamemnon’, Greek, Roman, and Byzantine Studies, 50, pp. 461–489. Available at: grbs.library.duke.edu.
open journal record
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