Cross-tradition comparison: how 15 medical traditions approach diarrhoea.
15
Traditions
21
Treatments
10
Plants & Sources
37
Evidence
5
Shared Across Traditions
plants used independently by multiple traditions
Independent Discovery
5 plants were used independently by traditions that never met. 5 shared mechanisms of action in the body.
Treatment Comparison
| Tradition | Treatment | Plant | How It Works | Evidence | Preparation | Dosage |
|---|---|---|---|---|---|---|
| Korean Traditional Medicine (Hanbang) | 생강 (Saenggang) / 건강 (Geongang) — Zingiber officinale / Ginger | Zingiber officinale | Dual COX-2/5-LOX inhibition, TRPV1 desensitization (analgesic), 5-HT3 antagonism (antiemetic), NF-kappaB suppression | High | Fresh ginger decoction: 3-9g sliced, simmered 10-1… |
By Tradition
Vayirrupokku (diarrhea) and Bethi (purgation/loose stools) are classified under Vayiru Noi (abdominal diseases) in Siddha. Yugi Vaithiya Chinthamani describes multiple types based on Kutram involvement. Agni (digestive fire) dysfunction is considered the root cause, with Vatham pushing contents downward.
Treatments (1)
மாசிக்காய் (Masikkai) — Quercus infectoria / Aleppo Oak Gall
Masikkai (Quercus infectoria galls) is a potent astringent preparation in Siddha medicine, widely used for Vayirrupokku (diarrhea) and other conditions requiring tissue tightening. The oak galls are rich in tannins, making them one of the most powerful astringent materials in the Siddha pharmacopoeia. Theraiyar describes Masikkai as Thuvarppu Suvai Marunthu (astringent taste medicine) that pacifies Kabam and Pitham.
| Fresh ginger: 3-9g in formula or as tea. Dried gin… |
| Traditional Chinese Medicine | 参苓白术散 (Shen Ling Bai Zhu San) — Ginseng, Poria, and White Atractylodes Powder | Panax ginsengZingiber officinale | Adaptogenic (HPA axis normalization), eNOS-mediated vasodilation, AMPK activation, PI3K/Akt neuroprotection | High | Originally a powder (散剂): grind herbs, take 6g per… | Powder: 6g TID with warm water. Decoction: one for… |
| Ayurveda | इसबगोल + शुण्ठी (Isabgol + Shunthi) — Atisara-hara Yoga | Plantago ovataZingiber officinale | Bulk-forming agent (bidirectional stool normalization), bile acid sequestrant, prebiotic, postprandial glucose modulator | High | Isabgol husk (5-10g) soaked in warm water or butte… | 5-10g Isabgol husk + 1-2g Shunthi Churna, 2-3 time… |
| Unani Medicine | مازو (Mazu) — Quercus infectoria / Oak Galls | Quercus infectoria | Mucosal astringent (protein precipitation), antimicrobial enzyme inhibition, intestinal antisecretory, iron chelation | High | Safoof-e-Mazu: 1-3g finely powdered gall with butt… | Powder: 1-3g twice daily with buttermilk. Decoctio… |
| Kampo (Japanese Traditional Medicine) | 人参湯 (Ninjin-tō) — Ginseng Decoction / 真武湯 (Shinbu-tō) — True Warrior Decoction | Panax ginsengZingiber officinale | Adaptogenic (HPA axis normalization), eNOS-mediated vasodilation, AMPK activation, PI3K/Akt neuroprotection | High | Ninjin-to: Standardized extract granule TJ-32. Shi… | Ninjin-to: 7.5g/day divided into 3 doses before me… |
| African Traditional Medicine | umGwava / Guova — Psidium guajava (Guava) | Psidium guajava | NF-kappaB inhibition, dual COX-2/5-LOX, intestinal antisecretory (antidiarrheal), mast cell stabilization, antimicrobial | High | Leaf decoction: 8-10 fresh young leaves in 500ml w… | Leaf decoction: 100-150ml after each loose stool, … |
| Polynesian Medicine (Rongoā Māori / La'au Lapa'au) | Kuawa (Hawaiian) / Guava — Psidium guajava | Psidium guajava | NF-kappaB inhibition, dual COX-2/5-LOX, intestinal antisecretory (antidiarrheal), mast cell stabilization, antimicrobial | High | Leaf decoction: 5-10 fresh or dried guava leaves b… | Leaf tea: 200-300ml of decoction, 2-3 times daily … |
| Siddha Medicine | மாசிக்காய் (Masikkai) — Quercus infectoria / Aleppo Oak Gall | Quercus infectoria | Mucosal astringent (protein precipitation), antimicrobial enzyme inhibition, intestinal antisecretory, iron chelation | Moderate | Chooranam (powder): galls dried and finely powdere… | 1-3g powder with buttermilk twice daily after meal… |
| Ancient Egyptian Medicine | Ispaghul (איספאגול) — Plantain Seed / Psyllium | Plantago ovata | Bulk-forming agent (bidirectional stool normalization), bile acid sequestrant, prebiotic, postprandial glucose modulator | Moderate | Seeds soaked in water until mucilaginous gel forms… | Seed husks: 5-10g soaked in water, taken 1-3 times… |
| Korean Traditional Medicine (Hanbang) | 홍삼 (Hong-sam) — Korean Red Ginseng | Panax ginseng | Adaptogenic (HPA axis normalization), eNOS-mediated vasodilation, AMPK activation, PI3K/Akt neuroprotection | Moderate | Decoction: 3-9g sliced red ginseng simmered 1-2 ho… | Decoction: 3-9g daily. Extract: 1-3g daily. Sliced… |
| Mesoamerican Medicine (Aztec / Nahua / Maya) | Guayaba / Xalxócotl — Psidium guajava | Psidium guajava | NF-kappaB inhibition, dual COX-2/5-LOX, intestinal antisecretory (antidiarrheal), mast cell stabilization, antimicrobial | Moderate | Leaf decoction: fresh or dried young leaves boiled… | Leaf decoction: one cup (200ml) every 4-6 hours du… |
| Native American Medicine | Tsi Yu Gi (Cherokee) / Goldenseal — Hydrastis canadensis | Hydrastis canadensis | AMPK activation, NF-kappaB inhibition, metabolic regulation, antimicrobial | Moderate | Root decoction: 1-3g dried root in 200ml water. Wa… | Decoction: 1-3g root, 2-3 times daily. Topical: di… |
| Amazonian / Peruvian Traditional Medicine | Hoja de Guayaba (Guava Leaf) — Psidium guajava | Psidium guajava | NF-kappaB inhibition, dual COX-2/5-LOX, intestinal antisecretory (antidiarrheal), mast cell stabilization, antimicrobial | Moderate | Infusion: 6-8 fresh young leaves (or 4-5 dried) st… | Infusion: 200ml 3-4 times daily until symptoms res… |
| Tibetan Medicine (Sowa Rigpa) | ཨ་རུ་ར (A-ru-ra) — Terminalia chebula / Chebulic Myrobalan | Terminalia chebula | Dual COX-2/5-LOX inhibition, NF-kappaB/IkappaBalpha stabilization, anti-AGE (protein glycation prevention), alpha-glucosidase inhibition, metal chelation antioxidant | Moderate | Dried fruit ground to powder. Used as single medic… | Powder: 2-5g with hot water. As component of formu… |
| Polynesian Medicine (Rongoā Māori / La'au Lapa'au) | Awapuhi (Hawaiian) — Zingiber officinale | Zingiber officinale | Dual COX-2/5-LOX inhibition, TRPV1 desensitization (analgesic), 5-HT3 antagonism (antiemetic), NF-kappaB suppression | Moderate | Fresh ginger grated and steeped in hot water. Also… | Fresh ginger tea: 5-10g grated ginger in hot water… |
| Ancient Egyptian Medicine | Bit (ביט) — Honey (with aromatic herbs) | — | — | Low | Applied directly to wounds. Mixed with other medic… | Wound care: applied liberally. Internal: 10-20ml p… |
| Aboriginal Australian Medicine | Acacia Bark — Acacia species (Bush medicine astringent) | — | — | Low | Inner bark stripped and boiled in water to produce… | Decoction: small cup (100-150ml) of bark infusion … |
| Native American Medicine | Slippery Elm — Ulmus rubra (Eastern Woodland medicine) | Ulmus rubra | — | Low | Bark powder mixed with water to form mucilaginous … | Gruel: 2-4g bark powder stirred into warm water, 3… |
| Ancient Greek Medicine | Κηκίς (Kekis) — Gall Oak / Oak Galls | Quercus infectoria | Mucosal astringent (protein precipitation), antimicrobial enzyme inhibition, intestinal antisecretory, iron chelation | Low | Decoction of powdered galls: 3-5g boiled in 200ml … | Gall decoction: 200ml three times daily. Combined … |
| Korean Traditional Medicine (Hanbang) | 계피 (Gye-pi) — Cinnamomum / Cinnamon | Cinnamomum verum | TRPA1 agonist, NF-kappaB inhibition, insulin-sensitizing | — | Bark decoction: 3-6g in compound formulas. Cinnamo… | In formula: 3-6g. Tea: 2-3g powder daily. |
| Aboriginal Australian Medicine | Eucalyptus — Eucalyptus globulus / E. species (Bush medicine) | Eucalyptus globulus | Anti-inflammatory (airway), mucolytic, bronchodilatory, TRPM8 agonist | — | Inhalation: fresh leaves crushed and inhaled, or p… | Inhalation: several leaves crushed or steamed, inh… |
Plants used
Active Compounds
Contraindications
[object Object]
Evidence (2)
Theraiyar Sekarappa; Agathiyar Vaithiya Kaaviyam 1500 — Vayiru Noi Chapter
Masikkai described as the premier Thuvarppu (astringent) medicine for Vayirrupokku (diarrhea) and Bethi (loose stools). Theraiyar classifies it under Malam Kattum Marunthu (stool-binding medicines). Preparation with buttermilk recommended for Kaba Bethi (mucoid diarrhea); with honey for Pitha Bethi (inflammatory diarrhea). Contraindicated in Vatha Bethi where Vatham needs to be expelled first.
Quercus infectoria gall extract for acute infectious diarrhea: randomized double-blind placebo-controlled trial
Quercus infectoria group showed significantly faster resolution of diarrhea (median 1.8 days vs 2.9 days, p=0.001) and reduced stool frequency at 48 hours. However, a concerning finding: 12% of patients in the treatment group developed rebound constipation requiring laxative intervention, compared to 2% in placebo group (p=0.03).
Diarrheal diseases were extremely common in ancient Egypt and extensively documented in the Ebers Papyrus. The close proximity to the Nile, agricultural practices, and food storage challenges made intestinal infections endemic. Egyptian physicians had numerous astringent and binding remedies.
Treatments (2)
Ispaghul (איספאגול) — Plantain Seed / Psyllium
Plantago seeds were used in Egyptian medicine as a binding and bulking agent for intestinal complaints. The mucilaginous seed husk absorbs excess water in the gut, making it effective for both diarrhea (as a binder) and constipation (as a bulk laxative).
Plants used
Active Compounds
Contraindications
[object Object]
Bit (ביט) — Honey (with aromatic herbs)
Honey was the most frequently used ingredient in Egyptian medicine — appearing in over half of all Ebers Papyrus prescriptions. Used as wound dressing, vehicle for other medicines, and for cough and throat complaints.
Contraindications
[object Object]
Evidence (3)
Ebers Papyrus — Remedies for Flux of the Belly and Intestinal Running
Mucilaginous seed preparations prescribed to 'stop the running of the belly' — seeds soaked in water to form a gel, then administered with honey. The Ebers Papyrus contains numerous anti-diarrheal remedies, reflecting the high prevalence of diarrheal disease in the Nile Valley population.
Psyllium husk for acute infectious diarrhea in adults: randomized controlled trial
Psyllium husk supplementation alongside oral rehydration significantly reduced stool frequency (3.2 vs 5.1 stools/day at day 3, p=0.002) and time to first formed stool (2.8 vs 4.5 days, p=0.004). Both groups received standard ORS. No adverse effects reported.
Seolsa (泄瀉) is one of the most commonly treated conditions in Hanbang, reflecting its centrality in Korean medical thought. The Donguibogam's emphasis on digestive health as the foundation of all treatment makes diarrheal disorders a priority condition. Sasang constitutional medicine is especially relevant — So-Eum types are constitutionally predisposed to diarrheal conditions.
Treatments (3)
생강 (Saenggang) / 건강 (Geongang) — Zingiber officinale / Ginger
Ginger holds dual status in Hanbang as both food-medicine (식약동원 Sikyak-dongwon) and a critical formula component. Fresh ginger (생강 Saenggang) and dried ginger (건강 Geongang / 乾薑) have distinct therapeutic profiles: fresh ginger disperses external cold and stops vomiting; dried ginger warms the interior and rescues depleted Yang. For chronic diarrhea from Spleen-Stomach cold deficiency, dried ginger is the primary warming agent.
Plants used
Active Compounds
Contraindications
[object Object]
홍삼 (Hong-sam) — Korean Red Ginseng
Korean Red Ginseng (Panax ginseng steamed and dried) is Korea's most important medicinal product. The steaming process creates unique ginsenosides (Rg3, Rh1) not present in white ginseng. Used as the premier qi tonic, adaptogen, and cardiovascular agent.
Plants used
Active Compounds
Contraindications
계피 (Gye-pi) — Cinnamomum / Cinnamon
Gye-pi (cinnamon) is used in Hanbang as a warming medicine for cold patterns, cardiovascular support, and digestive warming. Particularly indicated for So-Eum constitutional type with cold, weak digestion.
Plants used
Active Compounds
Contraindications
[object Object]
Evidence (3)
Donguibogam (동의보감), Heo Jun — Chapter on Seolsa (泄瀉 Diarrhea)
The Donguibogam identifies cold-type chronic diarrhea as the primary pattern requiring warming treatment. Dried ginger (건강 Geongang) is prescribed as the principal warming agent in I-Jung-Tang (理中湯 Regulate the Middle Decoction) — combined with ginseng, Atractylodes, and licorice. Heo Jun warns that chronic diarrhea untreated leads to Qi collapse (기탈 Gi-tal) and specifically recommends Geongang for So-Eum constitutional type patients.
I-Jung-Tang (dried ginger-ginseng formula) for chronic functional diarrhea in So-Eum constitutional type: randomized double-blind placebo-controlled trial
I-Jung-Tang (containing dried ginger 6g, ginseng 6g, Atractylodes 6g, licorice 4g) significantly reduced diarrhea frequency (-2.8 episodes/week vs -0.9, p=0.001) and improved Bristol Stool Scale scores at 8 weeks. Abdominal pain and cold abdomen symptoms also improved. Notably, a parallel non-Sasang-typed cohort showed weaker response (frequency reduction -1.4, p=0.09), supporting constitutional targeting.
Diarrheal diseases were a major cause of morbidity and mortality in the tropical Mesoamerican lowlands. Aztec and Maya healers maintained an extensive pharmacopoeia for diarrheal conditions, distinguishing between types by color, consistency, and accompanying symptoms. Guava (Psidium guajava), native to Mesoamerica, was one of the primary anti-diarrheal plants.
Treatments (1)
Guayaba / Xalxócotl — Psidium guajava
Guava (guayaba, Nahuatl: xalxócotl meaning 'sand fruit') is native to Mesoamerica and was one of the first plants documented for anti-diarrheal use. Both leaf and fruit preparations were employed. Aztec and Maya healers recognized its astringent (drying, binding) properties as ideal for treating flux of the bowels. Guava remains one of the most widely used medicinal plants in Mexico today.
Plants used
Active Compounds
Contraindications
[object Object]
Evidence (2)
Florentine Codex (Sahagún), Book XI — Plants used for bowel complaints and flux
Sahagún documented xalxócotl (guava) among the principal remedies for bowel flux. The unripe fruit and leaves were specified — the ripe fruit was food, the unripe fruit was medicine. Aztec healers distinguished between diarrhea types and matched treatments accordingly: guava for watery diarrhea, other plants for bloody flux.
Psidium guajava leaf extract for acute infectious diarrhea: randomized placebo-controlled trial
Guava leaf extract (500mg QID for 3 days) significantly reduced diarrhea duration (mean 28.4 vs 42.1 hours, p<0.01), stool frequency, and abdominal cramping compared to placebo. Anti-secretory and antimicrobial activity confirmed. Quercetin and guaijaverin identified as primary active compounds. No significant adverse effects.
Diarrhea and acute gastrointestinal illness treated with astringent bush medicine preparations. Aboriginal peoples across Australia developed treatments for dysentery and diarrhea using tannin-rich native plants, particularly bark preparations and certain native fruits. Knowledge of safe water sources and food preparation was the primary preventive strategy, accumulated over tens of thousands of years.
Treatments (2)
Acacia Bark — Acacia species (Bush medicine astringent)
Acacia (wattle) species are among the most widely distributed plants in Australia and have been used medicinally by Aboriginal peoples across the continent. The bark is particularly rich in tannins, making it a potent astringent for treating diarrhea, wounds, and sore throats. Different Acacia species are used in different regions — knowledge of which species to use for which purpose is held by Elders in each language group.
Contraindications
[object Object]
Eucalyptus — Eucalyptus globulus / E. species (Bush medicine)
Eucalyptus is the most widely used Aboriginal medicinal plant. Leaves are crushed for steam inhalation (respiratory), used in smoking ceremonies (spiritual/physical cleansing), and applied as poultice for pain. Aboriginal people discovered the medicinal properties of eucalyptus over tens of thousands of years.
Plants used
Active Compounds
Contraindications
Evidence (2)
Acacia bark and gum in Aboriginal gastrointestinal medicine: ethnobotanical documentation
Acacia bark decoction documented as the primary treatment for diarrhea and dysentery in all surveyed communities. A. implexa, A. mearnsii, and A. pycnantha cited most frequently, with species selection varying by region. Bark stripped, boiled for 20-40 minutes to produce dark, astringent liquid. Acacia gum also chewed for stomach settling. Elders described the treatment as 'binding the gut' and 'stopping the water.' Some communities combined Acacia bark with Eucalyptus leaf for additional antimicrobial effect.
Tannin-rich Australian Acacia bark extracts: antimicrobial and anti-diarrheal activity in vitro and in animal model
Acacia bark extracts showed significant antimicrobial activity against common enteric pathogens (E. coli, Salmonella, Shigella). In the animal model, A. mearnsii bark extract (500mg/kg) reduced diarrhea frequency by 68% compared to control (p<0.01), comparable to loperamide positive control. High condensed tannin content (18-32% by weight) confirmed as primary anti-diarrheal mechanism via protein precipitation and astringent effect on intestinal mucosa.
Diarrheal illness treated primarily with slippery elm (Ulmus rubra) bark gruel by Eastern Woodland tribes (Ojibwe, Cherokee, Iroquois, Mohegan). The mucilaginous bark coats and soothes the inflamed intestinal lining while providing nutrition to weakened patients. Goldenseal (Hydrastis canadensis) was used by the Cherokee specifically for infectious diarrhea — the berberine content providing antimicrobial activity. Other tribes used blackberry root (Rubus allegheniensis) and white oak bark (Quercus alba) as astringent anti-diarrheal agents. Diarrheal illness was a major cause of morbidity, particularly after European contact introduced new pathogens.
Treatments (2)
Slippery Elm — Ulmus rubra (Eastern Woodland medicine)
Slippery elm inner bark was one of the most important medicines of Eastern Woodland tribes (Ojibwe, Cherokee, Iroquois). The mucilaginous bark soothes inflamed mucous membranes of the digestive tract, respiratory tract, and skin.
Plants used
Contraindications
[object Object]
Tsi Yu Gi (Cherokee) / Goldenseal — Hydrastis canadensis
Goldenseal was the premier wound and infection medicine of the Cherokee and Iroquois. The bright yellow root (due to berberine) was used for skin infections, digestive complaints, and eye infections. Now one of the most commercially important Native American medicinal plants.
Plants used
Active Compounds
Contraindications
[object Object]
Evidence (4)
Ulmus rubra (Slippery Elm) for diarrheal illness in Eastern Woodland tribal medicine
Slippery elm bark gruel was the primary anti-diarrheal treatment across Eastern Woodland tribes and was one of the first Native American medicines adopted by European colonists. Military surgeons in the French and Indian War and American Revolution documented its effectiveness. The preparation was both medicine and food — critically important for patients weakened by prolonged diarrhea. Iroquois and Cherokee traditions distinguished between acute diarrhea (treated with slippery elm alone) and bloody diarrhea (treated with goldenseal or oak bark astringent added to slippery elm).
Slippery elm (Ulmus rubra) in combination therapy for irritable bowel syndrome with diarrhea (IBS-D): a randomized controlled pilot study
Slippery elm combination formula (slippery elm bark 400mg + bilberry fruit + cinnamon + agrimony) reduced stool frequency by 32% and improved Bristol Stool Scale scores from mean 6.2 to 4.1 (vs 6.1 to 5.3 in placebo, p=0.008) over 8 weeks. Abdominal pain also improved (p=0.03). However, the multi-ingredient formula makes it impossible to attribute benefit specifically to slippery elm. The mucilage's demulcent and bulking properties provide a plausible mechanism for stool normalization.
Chronic or recurrent diarrhea caused by Spleen Qi deficiency failing to properly transport and transform food and fluids. The Spleen governs the transformation of dampness; when Spleen Qi is weak, dampness accumulates in the intestines, causing watery stools and poor nutrient absorption.
Treatments (1)
参苓白术散 (Shen Ling Bai Zhu San) — Ginseng, Poria, and White Atractylodes Powder
Classical Spleen-tonifying formula from Tai Ping Hui Min He Ji Ju Fang (太平惠民和剂局方, 1078 CE). Tonifies Spleen Qi, resolves dampness, stops diarrhea. Considered the primary formula for chronic diarrhea from Spleen Qi deficiency with dampness. Gentler and more balanced than Si Jun Zi Tang for digestive weakness.
Plants used
Active Compounds
Contraindications
[object Object]
Evidence (3)
Tai Ping Hui Min He Ji Ju Fang (太平惠民和剂局方), 1078 CE
Original indication for Spleen-Stomach Qi deficiency with internal dampness causing diarrhea, poor appetite, fatigue, and sallow complexion. Described as a gentle, balanced formula suitable for prolonged use — distinguished from Si Jun Zi Tang by its dampness-resolving and intestine-securing properties. The addition of Sha Ren (Amomum) and Jie Geng (Platycodon) creates a balanced ascending-descending dynamic.
Shen Ling Bai Zhu San for irritable bowel syndrome with diarrhea (IBS-D): systematic review and meta-analysis
Shen Ling Bai Zhu San showed significant improvement in overall IBS symptom scores compared to conventional treatment (loperamide or pinaverium bromide) at 4-8 weeks (SMD -1.23, 95% CI -1.67 to -0.79). Stool consistency and frequency significantly improved. Relapse rate at 3 months was lower in the herbal group (18% vs 41%, p<0.001).
Atisara (diarrhea) literally means 'excessive flow.' Charaka Samhita describes six types based on doshic involvement. Atisara is considered both a disease and a symptom — it may arise as a primary illness or as a complication (Upadrava) of other diseases.
Treatments (1)
इसबगोल + शुण्ठी (Isabgol + Shunthi) — Atisara-hara Yoga
Isabgol (Plantago ovata husk) acts as Grahi (absorbent) in the GI tract — absorbing excess fluid and adding bulk to stools. Shunthi (dry ginger / Zingiber officinale) is the foremost Deepana-Pachana (appetite-stimulating, toxin-digesting) herb in Ayurveda. This combination addresses both the symptom (diarrhea) and root cause (Agni dysfunction) simultaneously.
Plants used
Active Compounds
Contraindications
[object Object]
Evidence (2)
Charaka Samhita — Chikitsasthana, Chapter 19 (Atisara Chikitsa); Ashtanga Hridaya — Chikitsasthana, Chapter 9
Charaka describes six types of Atisara and prescribes Grahi (absorbent) and Deepana-Pachana (appetite-stimulating, toxin-digesting) drugs as primary therapy. Shunthi (dry ginger) classified as foremost Deepaniya (appetizer) herb. Isabgol (mentioned in later Unani-influenced Ayurvedic texts as Ashwagola) used as Grahi for Atisara and Pravahika (dysentery). Vagbhata emphasizes correcting Agni as the root treatment.
Psyllium husk (Plantago ovata) for functional bowel disorders: Cochrane systematic review update
Psyllium husk significantly improved stool consistency and reduced stool frequency in diarrhea-predominant IBS (RR 0.72, 95% CI 0.60-0.87). Also effective for constipation-predominant IBS (bidirectional stool-normalizing effect). Number needed to treat (NNT) = 6 for global symptom improvement.
Hippocrates used diarrhoia (literally 'flowing through') to describe excessive watery stools. The Hippocratic text On Regimen in Acute Diseases provides detailed dietary management. Galen distinguished bilious, phlegmatic, and sanguineous varieties.
Treatments (1)
Κηκίς (Kekis) — Gall Oak / Oak Galls
Dioscorides (De Materia Medica I.146) describes Kekis (κηκίς — gall nuts from Quercus infectoria) as powerfully astringent and drying. Oak galls were a cornerstone of Greek astringent therapy, used for diarrhea, dysentery, and uterine hemorrhage. Often combined with pomegranate rind (ῥόα / rhoa) for enhanced effect.
Plants used
Active Compounds
Contraindications
[object Object]
Evidence (2)
Dioscorides, De Materia Medica I.146 (Kekis); Galen, De Simplicium Medicamentorum — on astringent remedies
Dioscorides classified oak galls (Kekis) as powerfully astringent and cold, recommending them for diarrhea, dysentery, and hemorrhage. Galen systematized astringent therapy: cold-dry remedies constrict and bind tissues, counteracting the excess moisture of diarrheal conditions. The combination of oak gall with pomegranate rind was a standard Galenic compound for intestinal flux.
Quercus infectoria gall extract versus loperamide for acute non-dysenteric diarrhea: randomized non-inferiority trial
Oak gall extract (500mg TID) met the non-inferiority margin versus loperamide for time to first formed stool (mean 28h vs 24h, difference 4h, 95% CI: -2 to 10h, within pre-specified 12h margin). Stool frequency reduction was comparable at 48 hours. However, the study was open-label due to difficulty matching dosage forms, introducing potential bias.
Ishal (diarrhea) is one of the most commonly treated conditions in classical Unani practice. Ibn Sina classified diarrhea by the dominant humor and by the organ of origin (stomach, liver, or intestines). Al-Razi contributed extensive clinical observations on epidemic diarrheal diseases.
Treatments (1)
مازو (Mazu) — Quercus infectoria / Oak Galls
Mazu (oak galls) is classified as Barid Yabis (cold and dry) in the 3rd degree — the premier Qabiz (astringent) in the Unani pharmacopoeia. Ibn Sina described it as powerfully drying and binding. Al-Razi prescribed it extensively for Ishal (diarrhea) and other conditions of excess Rutubat (moisture). Ibn al-Baytar documented its many preparations.
Plants used
Active Compounds
Contraindications
[object Object]
Evidence (2)
Kitab al-Hawi (Comprehensive Book), Abu Bakr al-Razi — Section on Ishal (Diarrhea)
Al-Razi classified Mazu (oak galls) as the most powerful Qabiz (astringent) for Ishal, prescribing it with buttermilk or pomegranate juice. Detailed case observations of epidemic diarrheal outbreaks where Mazu preparations reduced mortality. Cautioned against premature use before Nuzj (maturation) of the morbid humor — astringent therapy should follow, not precede, the body's natural expulsion of corrupt matter.
Quercus infectoria gall extract for acute non-bloody diarrhea in adults: randomized double-blind placebo-controlled trial
Oak gall extract (500mg TID for 5 days) significantly reduced diarrhea duration (2.1 days vs 3.8 days, p<0.001) and stool frequency (p<0.01). No significant difference in adverse events. Tannin content (primarily gallotannin and ellagitannin) confirmed as primary astringent agents. Antimicrobial activity against E. coli and Shigella demonstrated in vitro but clinical relevance uncertain.
Chronic diarrhea from Spleen Ki deficiency (Hikyo 脾虚) with dampness and cold in the middle burner. Kampo distinguishes between cold-type diarrhea (Kan-Geri — treated with warming formulas) and heat-type diarrhea (Netsu-Geri — treated with clearing formulas). This condition represents the cold deficiency pattern.
Treatments (1)
人参湯 (Ninjin-tō) — Ginseng Decoction / 真武湯 (Shinbu-tō) — True Warrior Decoction
Two complementary Kampo formulas for cold-deficiency diarrhea. Ninjin-to (TJ-32) warms the middle burner and tonifies Spleen Ki — used for mild to moderate Hikyo (Spleen deficiency) diarrhea. Shinbu-to (TJ-30) is stronger, warming Kidney Yang for severe cold-type diarrhea with systemic deficiency. Kampo selects between them based on the Sho pattern severity.
Plants used
Active Compounds
Contraindications
[object Object]
Evidence (2)
Ninjin-to (TJ-32) for chronic diarrhea-predominant IBS with Spleen deficiency pattern: randomized double-blind placebo-controlled trial
Ninjin-to significantly improved stool consistency (Bristol Stool Scale: 5.8 to 4.1 vs 5.7 to 5.2, p=0.001) and reduced daily bowel frequency (4.2 to 2.3 vs 4.1 to 3.5, p=0.008) at 8 weeks. Abdominal pain scores improved significantly. Global IBS symptom severity (IBS-SSS) reduction: -124 points vs -58 points (p<0.001). Cold abdominal sensation resolved in 73% of Kampo group.
Shinbu-to (TJ-30) for elderly patients with chronic cold-type diarrhea and Kidney Yang deficiency: randomized open-label controlled trial
Shinbu-to was non-inferior to loperamide for reducing diarrhea episodes at 8 weeks (primary endpoint met, p=0.03 for non-inferiority). Shinbu-to showed superior outcomes for: fatigue scores (p=0.01), cold extremity symptoms (p<0.001), and overall quality of life (SF-36 physical component, p=0.02). Loperamide group had higher constipation adverse events (25% vs 3%).
Acute diarrheal illness is one of the most common and dangerous conditions in the tropical Americas, particularly for children. Amazonian and mestizo folk medicine employs astringent plant remedies, especially Guava leaf (Psidium guajava), which is ubiquitous across tropical Latin America.
Treatments (1)
Hoja de Guayaba (Guava Leaf) — Psidium guajava
Guava leaf tea is the most widely used home remedy for diarrhea across tropical Latin America. In Peru, it is a household staple — nearly every family knows the remedy. The leaves are classified as fresco (cooling) and astringent, appropriate for hot-type diarrhea with fever or infection.
Plants used
Active Compounds
Contraindications
[object Object]
Evidence (2)
Home remedies for childhood diarrhea in peri-urban Lima and Amazonian communities: comparative ethnobotanical study
Guava leaf tea was the most frequently cited home remedy for childhood diarrhea in both urban (78%) and rural (91%) settings. Preparation method was nearly identical across regions: young leaves steeped in boiling water. Urban mothers more likely to combine with ORS; rural mothers more likely to combine with other plant medicines.
Psidium guajava leaf extract versus loperamide for acute non-dysenteric diarrhea: randomized non-inferiority trial
Guava leaf extract was non-inferior to loperamide for reducing stool frequency at 48 hours (primary endpoint met, p<0.001 for non-inferiority). Time to first formed stool was slightly longer with guava (mean 28.4h vs 22.1h, p=0.06). Fewer adverse events in the guava group (2% vs 14%, mainly constipation with loperamide).
Diarrheal disease is a leading cause of morbidity and mortality across sub-Saharan Africa, particularly among children. Every African healing tradition has well-developed treatments for this condition. Oral rehydration combined with astringent and antimicrobial plant remedies forms the standard approach.
Treatments (1)
umGwava / Guova — Psidium guajava (Guava)
Guava leaf tea is arguably the most widely used anti-diarrheal remedy across all of tropical Africa. Known as umGwava (Zulu), Guova (Shona), Gorofa (Hausa), and Goyave (Francophone Africa). The leaves are astringent and antimicrobial — a perfect combination for diarrheal disease. Every village herbalist and grandmother knows this remedy, making it one of the most accessible treatments in African traditional medicine.
Plants used
Active Compounds
Contraindications
[object Object]
Evidence (2)
Psidium guajava in African anti-diarrheal practice: pan-African ethnobotanical review
Guava leaf was the most frequently cited anti-diarrheal plant across sub-Saharan Africa, documented in 19 of 22 countries surveyed. Preparation is remarkably consistent: young leaf decoction. Every surveyed healing tradition — from Zulu inyangas to West African herbalists to East African waganga — independently uses guava leaf for diarrhea. Oral rehydration is universally co-administered.
Psidium guajava leaf extract for acute infectious diarrhea in children: randomized placebo-controlled trial in a Kenyan pediatric hospital
Guava leaf extract significantly reduced diarrhea duration (mean 2.1 vs 3.4 days, p<0.001), stool frequency at 48 hours (2.3 vs 4.7 stools/day, p<0.001), and need for IV rehydration (8% vs 26%, p=0.02). No significant adverse events. Quercetin and gallic acid concentrations in the extract correlated with anti-secretory activity.
'Khru-nad (diarrheal disease) is a common digestive disorder in Tibetan medicine classified under stomach and intestinal diseases. The rGyud-bZhi describes multiple types based on Nyepa involvement. Disturbance of Me-drod (digestive heat) in the stomach is considered the root cause.
Treatments (1)
ཨ་རུ་ར (A-ru-ra) — Terminalia chebula / Chebulic Myrobalan
A-ru-ra is revered as the 'King of Medicines' (sman-gyi rgyal-po) in Tibetan medicine. It appears in more Tibetan formulas than any other plant. Depicted in the hand of the Medicine Buddha. Balances all three Nyepa.
Plants used
Active Compounds
Contraindications
[object Object]
Evidence (2)
rGyud-bZhi (Four Medical Tantras), Oral Instruction Tantra — Chapter on Stomach and Intestinal Diseases
A-ru-ra (Terminalia chebula) described as the foundational medicine for intestinal disorders including 'Khru-nad (diarrhea). Its astringent (bska-ba) taste binds excess fluid. Its six-taste profile restores Me-drod (digestive heat) and rebalances all three Nyepa. Specific preparations vary by diarrhea type: with warm water for Bad-kan 'khru, with cooling herbs for mKhris-pa 'khru.
Terminalia chebula extract for acute non-bloody diarrhea: randomized controlled trial in Tibetan highland communities
Terminalia chebula extract (500mg TID) added to oral rehydration reduced mean diarrhea duration by 0.8 days (p=0.04) and stool frequency by day 3 (p=0.01) compared to ORS alone. No significant difference in stool consistency by day 5. Chebulagic acid and chebulinic acid (tannins) identified as astringent active compounds. No adverse events reported.
Diarrheal disease is a significant health concern on Pacific Islands, where waterborne illness, tropical infections, and dietary changes all contribute. Guava leaf (Psidium guajava — 'Kuawa' in Hawaiian) decoction is the primary anti-diarrheal across Polynesia, adopted from early contact with tropical American plants and now fully naturalized across the Pacific. Guava's astringent tannins provide effective symptomatic relief. Traditional treatment combines plant medicine with fluid replacement using coconut water — a natural oral rehydration solution used centuries before modern ORS development.
Treatments (2)
Kuawa (Hawaiian) / Guava — Psidium guajava
Guava was introduced to the Pacific Islands in the post-contact period and has become thoroughly naturalized — growing wild across Hawai'i, Samoa, Fiji, Tonga, and other island groups. Guava leaf tea is now the primary anti-diarrheal remedy across Polynesia, adopted so completely into traditional practice that many Pacific Islanders consider it a native plant. The leaf decoction provides rapid symptomatic relief from diarrhea through its high tannin content (astringent, antimicrobial). Guava fruit is also valued as a vitamin C-rich food-medicine.
Plants used
Active Compounds
Contraindications
[object Object]
Awapuhi (Hawaiian) — Zingiber officinale
Ginger was carried across the Pacific by Polynesian voyagers as both food and medicine. In Hawaiian tradition, shampoo ginger (Zingiber zerumbet — 'Awapuhi Kuahiwi) is used for hair and skin, while common ginger is used for digestive and inflammatory conditions.
Plants used
Active Compounds
Contraindications
[object Object]
Evidence (4)
Psidium guajava (Guava) as pan-Polynesian anti-diarrheal: ethnobotanical documentation of adoption and preparation methods across the Pacific
Guava leaf tea confirmed as the most widely recommended traditional remedy for diarrhea across all 5 Pacific Island groups surveyed. Despite being a post-contact introduction (17th-18th century), guava is now considered an essential medicine plant by all healers interviewed. Preparation methods vary: boiled leaf decoction (most common), young leaves chewed raw (Samoan — for acute cases), and leaves combined with ginger and coconut water (Fijian — for diarrhea with nausea). Coconut water used alongside guava as fluid replacement — healers explicitly understand the need to replace lost fluids. Children given diluted preparations.
Psidium guajava leaf extract for acute non-bloody diarrhea in Pacific Island children: a randomized, double-blind, placebo-controlled trial
Honey as adjunctive therapy for pediatric acute gastroenteritis: prospective cohort study
Honey supplementation with ORS reduced mean duration of diarrhea by 0.7 days (3.1 vs 3.8 days, p=0.03) and improved caloric intake during illness. However, no significant difference in hospitalization rates or dehydration severity scores. The antimicrobial and prebiotic properties of honey may provide modest benefit.
[object Object]
Ginseng-containing formulas for functional gastrointestinal disorders: systematic review of Korean clinical trials
Ginseng-containing formulas significantly improved functional diarrhea symptoms in 9 of 12 trials. Effect sizes were moderate (SMD -0.58, 95% CI: -0.82 to -0.34). Red ginseng showed stronger effects than white ginseng for chronic diarrhea. Sasang-typed studies (4 trials) showed larger effect sizes than non-typed studies. Ginsenoside Rb1's intestinal barrier-protective mechanism (tight junction protein upregulation) identified as likely primary action.
[object Object]
Hydrastis canadensis for diarrheal and dysenteric illness: Cherokee and Iroquois ethnobotanical records
Goldenseal was specifically used by the Cherokee for infectious diarrhea — what colonial-era texts called 'bloody flux' or dysentery. The Cherokee distinguished this from simple diarrhea, using goldenseal's antimicrobial properties specifically when infection was suspected (blood or mucus in stool, fever). Iroquois healers used goldenseal combined with blackberry root (astringent) for severe diarrheal illness. The specificity of this indication — antimicrobial goldenseal for infectious diarrhea vs. demulcent slippery elm for non-infectious diarrhea — demonstrates sophisticated differential diagnosis.
Berberine for acute infectious diarrhea: a double-blind, randomized, placebo-controlled trial
Berberine reduced diarrhea duration by 1.5 days (p<0.001), decreased stool frequency by 48% at 48 hours (vs 19% placebo, p<0.001), and reduced need for IV rehydration. Anti-secretory mechanism: berberine inhibits chloride ion secretion via heat-labile enterotoxin blockade and inhibits bacterial adhesion to intestinal epithelium. However, there was no significant benefit in the subgroup with viral diarrhea (p=0.42), confirming specificity for bacterial infectious diarrhea.
Shen Ling Bai Zhu San granules versus placebo for functional diarrhea: multicenter randomized double-blind trial
Shen Ling Bai Zhu San significantly reduced daily stool frequency (primary endpoint, p<0.001) and improved Bristol Stool Scale scores at 8 weeks compared to placebo. Gut microbiome analysis showed significant increase in Lactobacillus and Bifidobacterium species and decrease in pathogenic Enterobacteriaceae in the treatment group. Effects partially maintained at 12-week follow-up.
Guava leaf extract significantly reduced diarrhea duration: mean 42.3 hours vs 58.7 hours for placebo (p=0.002). Stool frequency at 24 hours was significantly lower in the guava group (3.2 vs 5.1 stools/day, p<0.001). No significant difference in need for IV rehydration (5% vs 8.3%, p=0.45). Quercetin and gallic acid (tannins) confirmed as primary active constituents by HPLC. No adverse events — the extract was well tolerated in children. Taste was the main compliance challenge.
Fijian combined anti-diarrheal preparations: documentation of ginger-guava traditional formulations
Fijian tradition combines ginger rhizome with guava leaf in a decoction for diarrhea accompanied by nausea and abdominal cramping. The combination rationale: guava addresses diarrhea (astringent effect on intestines), ginger addresses nausea and cramping (anti-emetic and anti-spasmodic). Vuniwai consider the combination more effective than either plant alone, particularly for diarrhea caused by 'bad food' (contaminated food/water). Preparation: 5-6 guava leaves and 5g sliced ginger boiled together in 500ml water for 15 minutes.
Ginger (Zingiber officinale) as adjunct to oral rehydration for acute gastroenteritis: a randomized controlled trial
Ginger adjunct significantly reduced nausea severity (VAS -34mm vs -19mm at 6 hours, p=0.002) and vomiting episodes (0.8 vs 2.1 episodes in first 24 hours, p<0.001). However, ginger did not significantly reduce diarrhea frequency (4.8 vs 5.2 stools/day at 24 hours, p=0.41) or duration. The anti-emetic benefit improved oral rehydration tolerance — fewer patients in the ginger group required IV fluids (4.3% vs 12.9%, p=0.06). Supports ginger as adjunct for the nausea/vomiting component of gastroenteritis rather than the diarrhea itself.