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The International Zoroastrian Community Magazine Est. 1964 · Bombay
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Entry 014 · Tier 2 · Tier 2 — Pahlavi & Classical Persian Medicine
Licorice Root
شیرین بیان (Shirin Bayan) — 'Sweet Speech'
Glycyrrhiza glabra L. / Glycyrrhiza uralensis · Fabaceae (Leguminosae)
Sraosha
Avestan: Classified under healing roots (bun cate
Respiratory
Digestive
Endocrine
🌿 Classification & Character
Divine Guardian
Sraosha — Sacred Obedience / Divine Word / Manthra
Sanskrit Cognate
Yashtimadhu — 'sweet stick' / Mulethi
Habitat
Deep-rooted perennial of the Mediterranean and western Asian steppe. Found across Iran's lowland and...
Parts Used
Root and rhizome (dried). Prepared as decoction (long simmer to extract glycyrrhizin), powder, extract, or chewed raw. The sweet taste is apparent immediately — 50x sweeter than sugar.

The healer of voice and speech. Named 'Shirin Bayan' (Sweet Speech) in Persian — a plant whose medicinal power is named after its most immediate observable action. Central to Persian medicine for respiratory, gastrointestinal, adrenal, and hormonal conditions. Native to southern Europe and southwestern Asia including Iran. Glycyrrhiza glabra grows wild across the Iranian plateau and has been cultivated there since ancient times.

Deep-rooted perennial of the Mediterranean and western Asian steppe. Found across Iran's lowland and foothills regions, particularly in the Zagros mountain foothills, Khorasan, and along river valleys. The root runs 1-2 meters deep — a plant that draws from the deep earth. Harvested in autumn after 3-4 years of growth. Iran, Afghanistan, and Turkey are the primary wild-harvest regions.

📜 Source Texts

Avicenna Canon of Medicine (extensive entry — respiratory, gastric, adrenal, hormonal use), Makhzan ul-Adwia, Dioscorides De Materia Medica (documents Persian use), Bundahishn 24 (root category), Galen (documents Persian licorice exports), Journal of Ethnopharmacology (Iranian ethnomedicine studies), PMC — Glycyrrhiza glabra review

Scriptural Record
Avicenna devotes extensive treatment to licorice root (Oss al-sus) in the Canon of Medicine. He identifies it as a primary treatment for cough, chest pain, respiratory congestion, gastric ulcers, and urinary tract conditions. He notes its special property of 'moistening' dry conditions — in the humoral medicine that extends from Zoroastrian practice, licorice is the supreme moistening and sweetening medicine. The Persian name 'Shirin Bayan' (Sweet Speech) encodes its primary application: the Magi used it specifically to protect and restore the voice — critical for a tradition where manthra (sacred speech) was a healing technology. A priest whose voice was lost could not perform the healing function. Licorice root was the Magi's voice medicine. The Bundahishn classifies roots as a distinct plant category — licorice root's depth of growth (reaching 2 meters) placed it among the most powerful root medicines.
Active Compounds
Glycyrrhizin (Glycyrrhizic acid)
Triterpenoid saponin — primary bioactive, 5-10% of root
Anti-inflammatory (inhibits phospholipase A2 and prostaglandin synthesis), antiviral (documented activity against herpes simplex, HIV, hepatitis C, SARS-CoV-1), hepatoprotective (used in Japan as standard treatment for chronic hepatitis C), expectorant (stimulates mucus secretion to loosen phlegm), demulcent (coats and soothes inflamed mucous membranes). Mineralocorticoid-like action — supports adrenal function.
Glabridin
Isoflavone (DGL licorice fraction)
Estrogen-receptor modulating, neuroprotective, antimicrobial against H. pylori (gastric ulcer pathogen), anti-inflammatory, skin-lightening (inhibits melanin synthesis).
Liquiritin and Isoliquiritin
Flavanone glycosides
Antidepressant (clinical studies), antioxidant, anticonvulsant, anti-ulcer. Liquiritin is the primary antidepressant compound in licorice root.
Chalcones (Licochalcone A, B, C)
Prenylated chalcones
Antimalarial (Licochalcone A), anti-leishmanial, antibacterial, antifungal, anti-tumour.
Phytoestrogens (Formononetin, Daidzein)
Isoflavones
Hormonal balance — particularly relevant for menopausal symptoms and conditions of estrogen deficiency.
Therapeutic Applications

Respiratory (cough, bronchitis, laryngitis, pharyngitis — both demulcent and expectorant), gastrointestinal (gastric and duodenal ulcers — documented H. pylori inhibition and mucosal protection, IBS, inflammatory bowel conditions), adrenal support (addison's disease, adrenal fatigue, cortisol regulation), viral hepatitis (glycyrrhizin is used as a pharmaceutical in Japan for chronic hepatitis C treatment), hormonal balance (menopausal symptoms, PCOS), depression (liquiritin — clinical trial confirms antidepressant activity), immune modulation, skin conditions (topical anti-inflammatory), oral health (anti-H. pylori, antimicrobial).

Respiratory Digestive Endocrine Nervous Immune Hepatic Reproductive
🔥 Sacred Preparation

Voice medicine (Magi protocol): simmer 1 tablespoon of dried, sliced licorice root in 2 cups of water for 20 minutes. Strain. Add honey. Drink one cup slowly, allowing it to coat the throat. Use before and after long manthra recitation. For gastric conditions: deglycyrrhizinated licorice (DGL) chewable tablets or decoction taken 20 minutes before meals. For respiratory conditions: combine licorice root with thyme and peppermint in a long simmer (30 minutes) — a compound respiratory formula the Magi would recognize. For adrenal support: take licorice root extract (standardized to glycyrrhizin) in the morning only — in alignment with the cortisol peak during the Havan Gah. Dosage: 1-5g dried root daily for short-term use (8-12 weeks maximum at medicinal doses). Then rest for equal time before resuming.

Synergy — The Magi's Compounding Science

Licorice + thyme + peppermint: the Iranian respiratory triad — expectorant (licorice), antimicrobial (thyme), cooling and bronchodilating (peppermint). Licorice + chamomile: gastrointestinal soothing compound — both anti-inflammatory and demulcent. Licorice + fennel + coriander: digestive formula for bloating, cramping, and gastric inflammation. Licorice + saffron: mood support combination — both have antidepressant mechanisms through different pathways.

Frequency Correspondence

Licorice resonates with Sraosha — the principle of sacred listening and response. Sraosha governs the voice, manthra, and divine communication. Licorice protects and restores the voice — the instrument of manthra. Its sweetness (50x sweeter than sugar) is the frequency of gift: this root gives immediately, openly, abundantly. It moistens what is dry, soothes what is inflamed, sweetens what is bitter. This is the medicine of right speech: clear, unobstructed, offered without resistance.

🔬 Modern Research Confirmation

Glycyrrhizin used as a pharmaceutical treatment for chronic viral hepatitis in Japan (intravenous formulation — Stronger Neo-Minophagen C). Antiviral activity against SARS-CoV-1 documented in Nature (2003) — glycyrrhizin inhibited virus replication. Clinical trial confirmed antidepressant activity of liquiritin (2009, Journal of Ethnopharmacology). H. pylori inhibition documented in multiple in vitro and clinical studies. WHO monograph recognizes licorice root for upper respiratory tract inflammation and gastric conditions. Glabridin (isoflavone) confirmed neuroprotective in Alzheimer's models.

Caution & Responsible Use

Long-term use of high-dose licorice root containing glycyrrhizin can cause pseudoaldosteronism: sodium retention, potassium depletion, elevated blood pressure, edema. Maximum 8 weeks at medicinal doses. Not for use in hypertension, heart failure, kidney disease, or with diuretics. Deglycyrrhizinated licorice (DGL) preparations have removed this risk and are safe for long-term use. Contraindicated in pregnancy at medicinal doses (uterine stimulant). Do not combine with corticosteroids — additive effects.

Cosmological Significance
Licorice root grows deep — it reaches for water two meters beneath the surface, then brings its sweetness up to the surface for the healer. This is the cosmological act of Sraosha: listening to what is deepest, then bringing it into speech. The plant is named for the act: Sweet Speech. The Magi who lived by manthra — who used sacred sound as their primary healing technology — protected their voices with licorice root. When they spoke Ashem Vohu or the Ahunavar, it was licorice that kept the channel clear. The voice was technology; licorice was its maintenance.
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