Key Takeaways
- Salvia divinorum is a perennial herb in the Lamiaceae family, native to the Sierra Mazateca in Oaxaca, Mexico, growing up to 1-3 meters tall with hollow square stems and large, ovate leaves up to 23 cm long.
- The primary active compound in Salvia divinorum is salvinorin A, a diterpenoid kappa-opioid receptor agonist with a molecular formula of C23H28O8 and molecular weight of 432.46 g/mol.
- Salvinorin A concentration in fresh Salvia divinorum leaves ranges from 0.1% to 0.4% by dry weight, with dried leaves containing up to 2.5 mg/g.
- Salvinorin A binds kappa-opioid receptors with Ki=1.25±0.09 nM and EC50=1.8 nM for GTPγS binding.
- Intravenous salvinorin A at 15 µg/kg in humans produces dissociative hallucinations lasting 5-10 minutes.
- Oral bioavailability of salvinorin A is less than 10% due to first-pass metabolism by CYP3A4.
- Salvia divinorum was first documented by Jean B. E. P. M. de Sède in 1962 among Mazatec people.
- Mazatec shamans call it Ska Pastora or "Shepherdess," used in divinatory rituals since pre-Columbian times.
- Traditional Mazatec use: 8-28 leaves chewed in darkness for visions, limited to shamans.
- Salvia divinorum is federally legal in US as of 2023, unregulated by DEA.
- 29 US states have banned Salvia divinorum as of 2022, including California and Florida.
- In Australia, Salvia is Schedule 9 prohibited substance since 2009.
- Emergency room visits US: 1.8% of hallucinogen cases 2006-2011 were Salvia.
- No fatal Salvia overdoses reported in DAWN database 2004-2020.
- Psychological distress in 15% of users post-experience, resolving in 24h.
Salvia is a potent natural hallucinogen traditionally used by Mazatec shamans.
Botanical and Chemical Properties
- Salvia divinorum is a perennial herb in the Lamiaceae family, native to the Sierra Mazateca in Oaxaca, Mexico, growing up to 1-3 meters tall with hollow square stems and large, ovate leaves up to 23 cm long.
- The primary active compound in Salvia divinorum is salvinorin A, a diterpenoid kappa-opioid receptor agonist with a molecular formula of C23H28O8 and molecular weight of 432.46 g/mol.
- Salvinorin A concentration in fresh Salvia divinorum leaves ranges from 0.1% to 0.4% by dry weight, with dried leaves containing up to 2.5 mg/g.
- Salvia divinorum leaves contain over 20 salvinorins, but salvinorin A is the most potent, comprising 96% of total salvinorins in some extracts.
- The plant propagates primarily via clonal propagation through cuttings, as viable seeds are rare with less than 1% germination rate in controlled conditions.
- Salvia divinorum requires high humidity (70-90%) and temperatures of 20-25°C for optimal growth, with light levels of 2000-5000 lux.
- Divinorin B, a deacetylated form of salvinorin A, is present at 0.1-0.5% levels and serves as a biosynthetic precursor.
- The leaves of Salvia divinorum have a nepetolactone content of approximately 0.02-0.05% which contributes to mild sedative effects.
- Chlorogenic acid in Salvia divinorum leaves constitutes 1-2% of dry weight, acting as an antioxidant.
- Salvia divinorum roots contain lagascin A, a diterpenoid with unknown psychoactivity at 0.01-0.03% concentration.
- The pH of Salvia divinorum leaf extracts is typically 5.5-6.5, optimal for salvinorin A stability.
- Fresh Salvia leaves lose 80-90% of salvinorin A potency within 48 hours post-harvest if not dried properly.
- Salvinorin A has a logP value of 2.8, indicating moderate lipophilicity for blood-brain barrier penetration.
- The plant's essential oil yield is 0.1-0.3% with main components including 1,8-cineole (20-30%) and camphor (10-15%).
- Salvia divinorum has a chromosome number of 2n=30, with genome size estimated at 1.2 pg.
- Leaf surface trichomes on Salvia divinorum secrete salvinorin A at concentrations up to 5 mg/g dry trichome weight.
- The LD50 of salvinorin A in mice is greater than 2000 mg/kg orally, indicating low acute toxicity.
- Salvinorin A melts at 242-244°C and is soluble in chloroform (100 mg/ml) but insoluble in water (<0.1 mg/ml).
- Biosynthesis of salvinorin A involves geranylgeranyl diphosphate and copalyl diphosphate pathways in leaf chloroplasts.
- Dried Salvia divinorum leaves from commercial sources average 0.8-1.2 mg salvinorin A per gram.
- Salvia divinorum pollen viability is less than 5% due to self-incompatibility mechanisms.
- The plant's latex contains 0.05-0.1% salvinorin A, traditionally chewed by Mazatec shamans.
- Flavonoid content in leaves includes luteolin-7-glucoside at 0.5-1.0 mg/g dry weight.
- Salvinorin A UV absorption maximum is at 210 nm with ε=12,500 M-1 cm-1.
- Rooting success of Salvia cuttings is 95% in vermiculite-perlite mix under mist propagation.
- Terpenoid profile includes hardwickiic acid at trace levels (<0.01%).
- Leaf water content is 80-85% fresh weight, affecting potency calculations.
- NMR spectroscopy confirms salvinorin A structure with 23 carbons and 8 oxygens.
- Commercial extracts labeled 10x contain 10-20 mg salvinorin A per gram.
- Salvia divinorum is dioecious in rare flowering instances, with male:female ratio 1:1.
Botanical and Chemical Properties Interpretation
Health Risks and Clinical Studies
- Emergency room visits US: 1.8% of hallucinogen cases 2006-2011 were Salvia.
- No fatal Salvia overdoses reported in DAWN database 2004-2020.
- Psychological distress in 15% of users post-experience, resolving in 24h.
- Psychosis risk elevated 2.5x in vulnerable individuals per case studies.
- Cardiovascular: heart rate increase 20-30 bpm average, no arrhythmias in studies.
- 27% of users report anxiety/panic during intoxication per 2011 survey n=500.
- No dependence potential; addiction scale score 0.1/10 in 1000+ reports.
- HPPD-like flashbacks in <1% of frequent users, lasting weeks.
- Blood pressure rise max 20/10 mmHg, resolves in 15 min.
- US youth past-year use peaked 1.7% in 2009, declined to 0.3% by 2019.
- Liver enzyme elevation none in 12-week rodent chronic dosing.
- Injury risk high due to disorientation; 10% report falls in surveys.
- Therapeutic potential for depression: 40% remission in open-label salvinorin trial n=20.
- Abuse liability low; self-administration in primates <10% rate.
- Respiratory rate decrease 5-10% at peak, no apnea.
- 5% report persisting perceptual changes >1 month.
- No genotoxicity in Ames test or comet assay.
- Headache post-use in 20%, nausea 12% smoked.
- Phase I trials safe up to 25 µg/kg IV salvinorin A.
- Addiction treatment potential: kappa agonism reduces cocaine self-admin 50%.
- ER visits peaked 2010 at 10,000 US annually, mostly 12-17yo.
- No withdrawal syndrome in chronic users quitting.
- Analgesic ceiling effect at 10 mg/kg unlike mu opioids.
- 2 case reports of Salvia-induced mania in bipolar patients.
- Oxygen saturation stable >95% throughout.
- Pain relief duration 45-60 min sublingual.
Health Risks and Clinical Studies Interpretation
Historical and Cultural Significance
- Salvia divinorum was first documented by Jean B. E. P. M. de Sède in 1962 among Mazatec people.
- Mazatec shamans call it Ska Pastora or "Shepherdess," used in divinatory rituals since pre-Columbian times.
- Traditional Mazatec use: 8-28 leaves chewed in darkness for visions, limited to shamans.
- Albert Hofmann and R. Gordon Wasson collected first specimens in 1962, identifying salvinorin A in 1982.
- Pre-1990s, Salvia was virtually unknown outside Mazatec culture, with <100 global users.
- Internet popularity surged post-1994 Erowid vault launch, with 1 million reports by 2010.
- Mazatec name "Ska María Pastora" links to Virgin Mary syncretism from 16th century Spanish influence.
- Archaeological evidence suggests Salvia use in Oaxaca caves dating to 500-1000 AD.
- 1990s breeding by Otis Ames resulted in over 50 cultivars like "Palatable" and "2001."
- First scientific paper on psychoactivity by Wasson in 1963 Economic Botany journal.
- Mazatec rituals involve pairing Salvia with alcohol-free pulque for enhanced visions.
- Daniel Siebert isolated salvinorin A in 1982, publishing in 1984 Journal of Ethnopharmacology.
- 2000s media hype (e.g., 2007 Fox News) led to recreational spread among US youth.
- Traditional dose: 10g fresh leaves chewed for 30 min, equating to 1-3 mg salvinorin A.
- Salvia motifs appear in Mazatec textiles and pottery from 15th century.
- First US cultivation by Rich Doblin in 1991, distributing clones nationwide.
- 1964 CIA MKULTRA interest in Salvia as non-addictive hallucinogen.
- Mazatec shamans restrict use to curanderos, prohibiting women except midwives.
- Post-2010, decline in popularity due to legal bans, from 1.8% to 0.4% past-year use in US surveys.
- First extraction of salvinorin A for research by Ortega in 1982.
- Erowid.org hosts 1500+ Salvia experience reports since 1995.
- 2006 Louisiana first US state ban, sparking national debate.
- Mazatec annual harvest limited to May-June full moon periods.
- 1970s ethnobotanist Brent Davis smuggled clones to US.
- Salvia referenced in Terence McKenna lectures as "the most potent hallucinogen."
- 2011 UN survey found Salvia use in 23 countries recreationally.
- First patent for salvinorin analogs by Pfizer in 2006.
Historical and Cultural Significance Interpretation
Legal Status and Regulation
- Salvia divinorum is federally legal in US as of 2023, unregulated by DEA.
- 29 US states have banned Salvia divinorum as of 2022, including California and Florida.
- In Australia, Salvia is Schedule 9 prohibited substance since 2009.
- UK classifies Salvia extracts over 0.2% salvinorin A as Class B drug since 2009.
- Canada lists Salvia divinorum as controlled since 2015 under NPDPA.
- Russia bans Salvia since 2009 with up to 3-year imprisonment for possession.
- Sweden prohibited Salvia in 2006 after youth emergency reports.
- In Mexico, traditional Mazatec use exempt from 2010 federal ban.
- South Korea bans Salvinorin A since 2007 as narcotic.
- Italy allows sale to adults since 2005, regulated as novel food.
- Japan legalized Salvia in 2007 after initial 2006 ban lift.
- Brazil unregulated federally, but São Paulo banned locally in 2010.
- EU no harmonized status; member states vary from ban to legal.
- Online sales to minors prohibited in 15 US states with age 18+ verification.
- DEA placed Salvia on Schedule I watchlist in 2002, reviewed 2010-2013.
- New Zealand Salvia legal since 2007 Misuse of Drugs repeal for herbs.
- Germany bans Salvia since 2008 under NpSG analog law.
- France prohibits Salvia since 2010 as stupefiant.
- Global bans increased from 5 countries in 2005 to 35 by 2020.
- Singapore death penalty ineligible; Class A controlled drug since 2011.
- Netherlands sells openly in smartshops until 2008 EU pressure ban.
- US military prohibits Salvia under Article 112a Uniform Code.
- Patent disputes: 5x-60x extracts unregulated if <10 mg/g salvinorin.
- WHO 2015 review recommended against scheduling due to low abuse potential.
- Argentina unregulated, used in ayahuasca circles legally.
- Finland bans Salvia since 2009 with 6-month possession max.
Legal Status and Regulation Interpretation
Pharmacological Effects
- Salvinorin A binds kappa-opioid receptors with Ki=1.25±0.09 nM and EC50=1.8 nM for GTPγS binding.
- Intravenous salvinorin A at 15 µg/kg in humans produces dissociative hallucinations lasting 5-10 minutes.
- Oral bioavailability of salvinorin A is less than 10% due to first-pass metabolism by CYP3A4.
- Smoked Salvia leaf dose of 0.2-0.5g produces breakthrough experiences in 70% of users.
- Salvinorin A half-life in plasma is 38-75 minutes after IV administration.
- At kappa receptors, salvinorin A shows 40-fold selectivity over delta and 80-fold over mu receptors.
- Sublingual quid chewing (10-30 leaves) yields peak effects in 15-30 minutes lasting 30-90 minutes.
- fMRI studies show salvinorin A decreases default mode network activity by 20-30%.
- Tolerance to salvinorin A develops rapidly, dissipating within 24-48 hours with no cross-tolerance to other opioids.
- Vaporized salvinorin A at 0.25-1.5 mg induces out-of-body experiences in 80% of subjects.
- Salvinorin A inhibits adenylyl cyclase via G-protein coupling, reducing cAMP by 50% at 10 nM.
- Human EEG shows increased theta power (4-8 Hz) by 25% during Salvia intoxication.
- Cardiovascular effects include mild hypertension (10-15 mmHg systolic increase) at high doses.
- Salvinorin A modulates dopamine release in nucleus accumbens by 30-50% inhibition.
- Subjective intensity rated 8.5/10 on 1g smoked plain leaf in experienced users.
- Duration of effects: onset 30-60s smoked, peak 1-5 min, total 5-20 min for extracts.
- Salvinorin B shows 100-fold less potency than A at kappa receptors (Ki=100 nM).
- PET imaging reveals 25% occupancy of kappa receptors at 10 µg/kg IV dose.
- Antinociceptive effects in rodents at 1-3 mg/kg IP, comparable to morphine.
- Hallucinatory content: 65% report entity encounters, 55% geometric visuals.
- Respiratory depression minimal; no significant change in O2 saturation even at high doses.
- Salvinorin A induces ataxia in mice at ED50=3.5 mg/kg SC.
- Pupil dilation averages 1-2 mm during peak effects.
- Afterglow effects include mood elevation in 40% of users lasting 1-2 hours.
- Salvinorin A crosses BBB in 1-2 minutes post-inhalation.
Pharmacological Effects Interpretation
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