# Kutaj (Holarrhena antidysenterica)

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/kutaj
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-03-19
**Evidence Score:** 6 / 10
**Category:** Ayurveda
**Also Known As:** Holarrhena antidysenterica, Kurchi, Conessi Bark, Indrajao, Kutaja, Tellicherry Bark, Easter Tree

## Overview

Kutaj (Holarrhena antidysenterica) contains alkaloids like conessine and kurchi that provide anti-diarrheal effects by inhibiting [acetylcholine](/ingredients/condition/cognitive)sterase and reducing intestinal motility. The bark extract demonstrates anti-amoebic activity against Entamoeba histolytica through disruption of parasitic cellular processes.

## Health Benefits

• Anti-diarrheal and anti-dysentery effects (Traditional evidence - used for over 2,000 years in Ayurveda for these conditions)
• Anti-amoebic activity (Preliminary evidence - in vitro studies show activity against amoebic infections)
• [Acetylcholine](/ingredients/condition/cognitive)sterase inhibition (Preliminary evidence - seed extracts showed IC50 of 6.1 μg/ml in vitro)
• [Antimicrobial](/ingredients/condition/immune-support) properties (Preliminary evidence - antibacterial and antifungal effects demonstrated in laboratory studies)
• Digestive support (Traditional evidence - promotes [digestion](/ingredients/condition/gut-health) and absorption according to Ayurvedic texts)

## Mechanism of Action

Kutaj's primary alkaloids, conessine and kurchi, inhibit [acetylcholine](/ingredients/condition/cognitive)sterase enzyme activity, reducing cholinergic stimulation in intestinal smooth muscle and decreasing motility. The conessine alkaloid disrupts membrane integrity in amoebic parasites like Entamoeba histolytica. These compounds also modulate inflammatory pathways by inhibiting [pro-inflammatory cytokine](/ingredients/condition/inflammation) production in intestinal epithelial cells.

## Clinical Summary

Traditional evidence spans over 2,000 years of Ayurvedic use for diarrhea and dysentery conditions. In vitro studies demonstrate anti-amoebic activity against Entamoeba histolytica with IC50 values around 25-50 μg/mL for bark extracts. Preliminary [acetylcholine](/ingredients/condition/cognitive)sterase inhibition studies show 60-70% enzyme inhibition at 100 μg/mL concentrations. However, controlled human clinical trials are lacking, limiting evidence quality to preclinical and traditional use data.

## Nutritional Profile

Kutaj (Holarrhena antidysenterica) is a medicinal plant used primarily for its bioactive alkaloid content rather than as a nutritional food source. **Primary Bioactive Compounds:** • **Steroidal alkaloids (total alkaloid content: 2.0–4.5% in bark, 3.0–5.0% in seeds):** The most pharmacologically significant class. - **Conessine** (primary alkaloid): ~1.5–2.5% in stem bark, ~2.0–3.5% in seeds; a steroidal amine (C₂₄H₄₀N₂) responsible for major anti-amoebic and anti-diarrheal activity. - **Conessimine:** ~0.1–0.3% in bark; structurally related to conessine with complementary bioactivity. - **Isoconessimine, Kurchine, Kurchicine, Holarrhimine, Holarrhenine:** Present in trace to minor amounts (each typically <0.1–0.2%). - **Conarrhimine and Norconessine:** Minor alkaloids contributing to overall pharmacological profile. • **Non-alkaloid bioactives:** - **Tannins:** ~3–7% in bark (condensed and hydrolyzable tannins contributing to astringent and anti-diarrheal properties). - **Flavonoids:** Including quercetin and kaempferol derivatives; present at ~0.5–1.5% in bark and leaf extracts. - **Phenolic acids:** Gallic acid, ellagic acid, and caffeic acid detected in bark and leaf extracts (total phenolic content: ~25–60 mg GAE/g dry extract depending on solvent). - **Triterpenoids:** Lupeol (~0.1–0.5% in bark), ursolic acid, and related compounds. - **Resinous substances:** ~4–6% in bark. - **Saponins:** Present in moderate amounts, particularly in seeds. • **Phytosterols:** β-sitosterol and stigmasterol detected in bark and seed extracts. • **Crude fiber:** Present in bark (~15–25% of dry weight), though not consumed for fiber nutrition. • **Minerals (in bark):** Calcium (~1.0–2.5%), potassium (~0.5–1.5%), magnesium (~0.3–0.8%), iron (~150–400 ppm), zinc (~30–80 ppm), and manganese (~50–120 ppm) reported in elemental analyses of bark samples. • **Carbohydrates/Sugars:** Bark contains reducing sugars and starch (~5–10%). **Bioavailability Notes:** Conessine is a lipophilic tertiary amine with relatively good oral bioavailability; it crosses biological membranes readily due to its steroidal structure. Traditional Ayurvedic preparations (kwatha/decoction of bark, or churna/powder) enhance extraction of water-soluble alkaloid salts and tannins. The tannin content may partially reduce bioavailability of co-administered nutrients or minerals through chelation. Seed-based preparations tend to have higher alkaloid concentrations than bark preparations. Conessine has a moderate half-life and is metabolized hepatically. Note: Kutaj is classified as a medicinal herb (Aushadhi Dravya), not a food or nutritional supplement; its value lies in its alkaloid pharmacology rather than macro- or micronutrient contribution to diet.

## Dosage & Preparation

Traditional dosing: seed or bark powder 2-4 g daily; decoction/infusion 30-50 ml; tincture 2-4 ml. No clinically studied dosages available. Consult a healthcare provider before starting any new supplement.

## Safety & Drug Interactions

Kutaj may cause gastrointestinal upset, nausea, and abdominal cramping at higher doses due to its astringent alkaloid content. The herb may interact with anticholinergic medications and could potentiate effects of anti-diarrheal drugs. Pregnant and breastfeeding women should avoid use due to insufficient safety data and potential uterine stimulant properties. Individuals with severe dehydration should seek medical attention rather than relying solely on herbal treatment.

## Scientific Research

No human clinical trials, RCTs, or meta-analyses were found in the research dossier. Current evidence is limited to in vitro and animal studies demonstrating antidiarrheal, anti-amoebic, and [acetylcholine](/ingredients/condition/cognitive)sterase inhibitory effects, with one review mentioning potential for [inflammatory](/ingredients/condition/inflammation) bowel disease but providing no clinical data.

## Historical & Cultural Context

In Ayurveda, Kutaj has been used for over 2,000 years to treat dysentery, diarrhea, digestive disorders, and parasitic infections, as documented in classical texts like Bhavprakash Nighantu. It is said to balance Kapha and Pitta doshas and is commonly formulated as Kutjarishtam, Kutajghan Vati, and churnas.

## Synergistic Combinations

[Probiotic](/ingredients/condition/gut-health)s, Psyllium husk, Slippery elm, Chamomile, Ginger

## Frequently Asked Questions

### What is the active compound in kutaj?

The primary active compounds in kutaj are alkaloids including conessine, kurchi, and conarrhimine, with conessine being the most studied. These alkaloids are concentrated in the bark and seeds, providing the herb's anti-diarrheal and anti-parasitic effects.

### How much kutaj should I take for diarrhea?

Traditional Ayurvedic dosing suggests 1-3 grams of kutaj bark powder daily, typically divided into 2-3 doses with water. However, standardized clinical dosing guidelines are not established, so consultation with an Ayurvedic practitioner is recommended for proper dosing.

### Can kutaj treat amoebic dysentery?

In vitro studies show kutaj extracts have anti-amoebic activity against Entamoeba histolytica, the parasite causing amoebic dysentery. However, human clinical trials are lacking, and amoebic dysentery requires proper medical diagnosis and treatment rather than self-medication with herbs alone.

### Is kutaj safe during pregnancy?

Kutaj should be avoided during pregnancy due to insufficient safety data and traditional concerns about uterine stimulant properties. The alkaloids may potentially affect fetal development, so pregnant women should consult healthcare providers for safe diarrhea treatments.

### What are the side effects of kutaj?

Common side effects include gastrointestinal upset, nausea, abdominal cramping, and constipation if overused. High doses may cause dizziness or headaches due to the alkaloid content, and prolonged use without medical supervision is not recommended.

### Does kutaj interact with antimicrobial or anti-parasitic medications?

Kutaj has demonstrated antimicrobial and anti-amoebic properties in preliminary studies, which theoretically could potentiate or interfere with prescription antimicrobials or antiparasitic drugs. Concurrent use with medications like metronidazole, iodoquinol, or antibiotics should be discussed with a healthcare provider to avoid additive effects or reduced efficacy. There are no well-documented clinical drug interactions, but caution is warranted given its bioactive alkaloid content.

### What is the difference between kutaj bark, seed, and root extracts?

Kutaj bark and seeds contain different alkaloid profiles; seed extracts have shown acetylcholinesterase inhibition activity (IC50 of 6.1 μg/ml in vitro), while bark has been traditionally used for gastrointestinal conditions. Root extracts are less commonly used in traditional Ayurvedic practice compared to bark and seeds. The most researched and traditionally utilized form remains the bark for anti-diarrheal and anti-dysentery applications.

### Who should avoid kutaj supplementation?

Pregnant women should avoid kutaj due to potential uterotoxic properties documented in traditional medicine. Individuals with severe constipation or bowel obstruction should avoid it, as its anti-diarrheal effects may worsen these conditions. Those taking acetylcholinesterase inhibitors (for Alzheimer's disease or myasthenia gravis) should consult a healthcare provider before use, given kutaj seed extracts' inhibitory activity on this enzyme.

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