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    Ayahuasca molecular structure

    Ayahuasca Stats & Data

    Aya Cipó Yage Yaje Brew pharmahuasca
    Chemical Class Phenethylamine
    Psychoactive Class Psychedelic / Stimulant

    Receptor Profile

    Receptor Actions

    Agonists
    5-HT2A receptor agonist (partial, DMT component)
    Inhibitors
    Reversible monoamine oxidase-A inhibitor (harmala alkaloids)

    History & Culture

    1500 BCE–900 CE

    Ayahuasca has been used by the indigenous peoples of South America since before recorded history. The word itself derives from Quechuan languages spoken in the Andes, with its name translating to "spirit rope" or "liana of the soul," referring both to the Banisteriopsis caapi vine and the psychoactive brew prepared from it. Archaeological evidence suggests the use of psychoactive plants in the northeastern Amazon dates back to 1500–2000 BCE. Artifacts from this period include anthropomorphic figurines, snuffing trays, and pottery vessels adorned with mythological figures and sacred animals, offering glimpses into pre-Columbian ritual culture. More direct evidence of B. caapi use emerged from a pouch discovered in a cave in southwestern Bolivia in 2008, while chemical traces of harmine were identified in the hair of two mummies found in northern Chile. Both findings have been linked to the Tiwanaku civilization, dating to approximately 900 CE. By the 19th century, the specific ritual use of ayahuasca was widespread among Indigenous groups throughout the Amazon and Orinoco basins, though its precise origins remain uncertain.

    17th century–present

    The first Western references to the ayahuasca beverage appeared during the 17th century, coinciding with the European colonization of the Americas. The earliest known report is a letter from Vicente de Valverde to the Holy Office of the Inquisition. Jose Chantre y Herrera, also writing in the 17th century, provided the first detailed description of what he termed a "devilish potion" prepared from bitter herbs and lianas (referred to as ayaguasca), along with accounts of its associated rituals. Christian missionaries from Spain and Portugal who encountered ayahuasca during this period predictably characterized it as the work of the devil, establishing a pattern of colonial suspicion toward indigenous plant medicines that would persist for centuries.

    Throughout its history, ayahuasca has been employed across diverse South American cultures for spiritual, social, and medicinal purposes. Traditional preparation involves a ritualistic, multi-day process of macerating and boiling B. caapi with other plants such as Psychotria viridis. These ceremonies are typically guided by shamans and involve specific dietary restrictions and ritual practices that have evolved over generations to support the psychological and spiritual dimensions of the experience. The Shipibo-Konibo people of the Peruvian Amazon have played a particularly significant historical and cultural role in the development and preservation of ayahuasca traditions. Among those who undergo the ayahuasca experience, reports of profound spiritual revelations regarding one's purpose, the nature of existence, and personal insight are common, with many describing lasting positive changes following their encounters with the brew.

    mid-20th century–present

    Ayahuasca spread beyond its traditional Amazonian context by the mid-20th century, primarily through syncretic religious movements originating in Brazil. These organizations blended indigenous ayahuasca practices with Christian and other spiritual traditions, establishing formal churches that would eventually carry the brew to Europe, North America, and beyond. The contemporary ayahuasca landscape includes both traditional indigenous ceremonial use and participation in organized religious contexts, as well as a growing phenomenon of ayahuasca tourism, with retreat centers operating throughout South America offering ceremonial experiences to international visitors.

    Subjective Effect Notes

    physical: The physical effects of Ayahuasca can be broken down into three main components all of which progressively intensify proportional to dosage.

    cognitive: The head space of ayahuasca is described by many as extremely sober and clear headed in its style when compared to other commonly used psychedelics such as LSD or Psilocin. This is despite the fact that it contains a large number of psychedelic typical and unique cognitive effects.

    Effect Profile

    Curated + 166 Reports
    Psychedelic 8.8

    Strong visuals, headspace, auditory effects, and body load

    Visual Intensity×3
    10104.6
    Headspace Depth×3
    10103.8
    Auditory Effects×1
    10104.8
    Body Load / Somatic Effects×1
    10106.6
    Catalog Erowid BlueLight
    Empathogen 9.1

    Strong sensory enhancement, empathy, euphoria, and stimulation

    Empathy / Social Openness×3
    9102.4
    Euphoria / Mood Elevation×2
    97.83.2
    Stimulation×1
    97.21.6
    Sensory Enhancement×1
    10101.6
    Catalog Erowid BlueLight
    Stimulant 6.6

    Strong anxiety/jitters and focus with moderate stimulation and euphoria

    Stimulation / Energy×3
    78.5
    Euphoria / Mood Lift×2
    76.7
    Focus / Productivity×2
    97.4
    Anxiety / Jitters×1
    1010
    Catalog Erowid

    Duration Timeline

    Bluelight
    Onset Comeup Peak Offset After Effects
    Oral (Syrian Rue + Mimosa Hostilis)
    19 minutes - 1.0 hours
    30 minutes - 1.0 hours
    1-2 hours
    1-2 hours
    1-8 hours
    Total: 5-10 hours
    Oral (Syrian Rue + Acacia Confusa)
    19 minutes - 1.0 hours
    30 minutes - 1.0 hours
    1-2 hours
    1-2 hours
    1-8 hours
    Total: 4-8 hours
    Oral (Pharmahuasca - Extracted Alkaloids)
    15-30 minutes
    19-40 minutes
    1-2 hours
    1-2 hours
    1-6 hours
    Total: 4-8 hours
    Oral (Traditional B. Caapi + P. Viridis Brew)
    19 minutes - 1.0 hours
    30 minutes - 1.0 hours
    1-2 hours
    1-2 hours
    1-8 hours
    Total: 4-8 hours
    Oral
    18 minutes - 1.0 hours
    1-2 hours
    1-2 hours
    1-8 hours
    Total: 4-8 hours

    Tolerance & Pharmacokinetics

    drugs.wiki

    Tolerance Decay

    Full tolerance 1h Half tolerance 10d Baseline ~14d

    Cross-Tolerances

    LSD
    30% ●○○
    Psilocybin
    30% ●○○
    Psilocin
    30% ●○○
    Mescaline
    30% ●○○
    DMT
    30% ●○○
    5-MeO-DMT
    30% ●○○
    2C-B
    30% ●○○
    2C-E
    30% ●○○

    Experience Report Analysis

    Erowid BlueLight
    141 Reports
    1994–2024 Date Range
    88 With Age Data
    33 Effects Detected

    Demographics

    Gender Distribution

    Age Distribution

    Reports Over Time

    Effect Analysis

    Erowid + Bluelight

    Effects aggregated from 166 experience reports (141 Erowid + 25 Bluelight)

    166 Reports
    112 Effects Detected
    45 Positive
    35 Adverse
    32 Neutral

    Effect Sentiment Distribution

    Confidence Distribution

    Positive Effects 45

    Empathy 61.7% 70%
    Color Enhancement 51.8% 84%
    Stimulation 50.4% 70%
    Music Enhancement 45.2% 90%
    Euphoria 41.6% 82%
    Introspection 41.0% 85%
    Tactile Enhancement 38.3% 70%
    Focus Enhancement 36.9% 70%
    Awe 36.0% 83%
    Geometric Imagery 36.0% 87%
    Thought Acceleration 28.0% 80%
    Insight 20.0% 91%
    Revelatory Insight 20.0% 88%
    Body High 18.1% 82%
    Mystical Quality 16.0% 90%
    Joy 16.0% 84%
    Environmental Transfiguration 16.0% 85%
    Contentment 16.0% 78%
    Analysis Enhancement 12.0% 83%
    Love 12.0% 92%

    Adverse Effects 35

    Nausea 66.3% 89%
    Anxiety 57.2% 87%
    Fear 36.0% 86%
    Vomiting 36.0% 91%
    Confusion 34.3% 82%
    Entity Imagery 28.0% 85%
    Panic 20.0% 89%
    Body Load 20.0% 78%
    Motor Impairment 13.9% 85%
    Memory Suppression 12.8% 70%
    Dizziness 12.0% 85%
    Sweating 8.4% 82%
    Thought Deceleration 8.0% 80%
    Restlessness 8.0% 82%
    Body Temperature Change 8.0% 85%
    Pain Enhancement 8.0% 88%
    Paranoia 8.0% 90%
    Muscle Tension 6.0% 75%
    Increased Heart Rate 5.7% 70%
    Headache 4.8% 80%

    Subjective Effect Ontology

    Experience Reports

    Structured effect tags extracted from 166 Erowid & Bluelight experience reports using a controlled vocabulary of 220+ canonical effects across 15 domains.

    Gastrointestinal

    nausea 110 66.3%

    1 unique effects extracted · Derived from Erowid & Bluelight reports

    Real-World Dose Distribution

    62K Doses

    From 160 individual dose entries

    Form / Preparation

    Most common forms and preparations reported

    Body-Weight Dosing

    Dose relative to body weight from reports with weight data

    Median: 1.2 mg/kg IQR: 0.709–2.632 mg/kg n=15

    Redose Patterns

    Redosing behavior across 112 reports

    21.4% Redosed
    1.3 Avg Doses
    180m Median Interval

    Legal Status

    Convention on Psychotropic Substances 1971 (DMT is Schedule I, but plants and preparations containing it are not subject to international control)
    Country Status Notes
    Brazil Legal for religious use Religious use was legalized following two official government inquiries in the mid-1980s, which concluded that ayahuasca is not a recreational drug and has valid spiritual applications. Brazil is the origin of the Santo Daime and União do Vegetal syncretic religious movements.
    Canada DMT is Schedule III CDSA; harmaline is Schedule III; religious exemptions available DMT and harmaline are both controlled under the Controlled Drugs and Substances Act. However, in 2017, the Santo Daime Church Céu do Montréal received a religious exemption permitting the use of ayahuasca as a sacrament in their rituals.
    France Schedule I (Stupéfiants) In early 2005, Santo Daime initially won a court case permitting use of the tea, as they did not perform chemical extractions and the plants were not scheduled. However, four months later, the common botanical ingredients of ayahuasca along with harmala alkaloids were declared stupéfiants (narcotic Schedule I substances), making the tea and its ingredients illegal to possess or use. As of 2005, nearly all DMT-containing plants that could be used in ayahuasca preparations became controlled.
    Netherlands Legal for religious use (case law precedent) The first ayahuasca churches affiliated with Brazilian Santo Daime were established here. In 2001, the Amsterdam district court ruled in favor of Santo Daime leaders Hans Bogers and Geraldine Fijneman, finding that the prosecution could not demonstrate sufficient threat to public health and order to justify denying religious freedom under ECHR Article 9. This verdict established an important legal precedent, and various ayahuasca groups have since operated in the country.
    Peru Legal; protected cultural heritage Ayahuasca is legal and formally protected as part of the nation's cultural heritage. When ratifying the 1971 Convention on Psychotropic Substances, Peru entered a reservation excluding Ayahuasca and San Pedro from international control, citing traditional ritual use by Amazonian peoples. On 24 June 2008, the Instituto Nacional de Cultura declared the traditional knowledge and ceremonial use of ayahuasca by Indigenous communities as Patrimonio Cultural de la Nación (Cultural Heritage of the Nation).
    United States Schedule I (DMT component); religious exemptions available DMT is a Schedule I controlled substance under federal law, making ayahuasca brews technically illegal. However, the plants themselves contain no scheduled chemicals and remain legal. Religious organizations have obtained legal exemptions under the Religious Freedom Restoration Act, including the União do Vegetal (Supreme Court ruling in Gonzales v. O Centro Espírita Beneficente União do Vegetal, 2006) and Santo Daime (District Court ruling, 2009). Several municipalities have decriminalized natural entheogens including Oakland, California (June 2019), Santa Cruz, California (January 2020), and Ann Arbor, Michigan (September 2020).
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