# Vidanga

> Vidanga (Embelia ribes Burm.f.) is a plant used in Ayurveda. Anthelmintic activity confirmed by in vitro and clinical studies in children with Ascaris infections. Listed in Ayurvedic Pharmacopoeia of India.

## Key facts

- **Botanical name:** Embelia ribes Burm.f.
- **Pharmacopoeia status:** Listed in Ayurvedic Pharmacopoeia of India. Phytochemical standardization conducted per WHO guidelines. No dedicated WHO monograph; included in Indian traditional medicine pharmacopeias.

## Names and identification

| Language | Name |
|----------|------|
| English | Vidanga |
| Latin/Botanical | *Embelia ribes Burm.f.* |

## Key Phytochemical Constituents

- [Embelin](/glossary/compounds-d-g/#embelin) (2,5-dihydroxy-3-undecyl-1,4-benzoquinone)
- Vilangin
- Christembine (alkaloid)
- [Quercitol](/glossary/compounds-q-t/#quercitol)
- Embelinol
- Embeliaribyl ester
- Embeliol (1,2,4,5-tetrahydroxy-3-undecanyl benzene)
- Volatile oils and [tannins](/reference/tannins/)

## How does it work?

- XIAP inhibition: Embelin is a cell-permeable small-molecule inhibitor of X-linked inhibitor of apoptosis protein, inducing caspase-dependent apoptosis in cancer cells.
- NF-kB suppression: Blocks TNF-alpha-induced NF-kB activation, suppressing expression of antiapoptotic and metastatic gene products.
- PI3K/AKT pathway modulation: Inhibits PI3K/AKT signaling leading to reduced cell proliferation and survival in tumor cells.
- Anthelmintic action: Causes neuromuscular paralysis in helminths through disruption of energy metabolism; tannins and [alkaloids](/glossary/compounds-1-a/#alkaloids) precipitate worm [proteins](/glossary/compounds-o-q/#proteins).
- [Antioxidant](/reference/antioxidant/) activity: Embelin and vilangin scavenge free radicals and reduce oxidative stress markers including lipid peroxidation.

## Which traditional uses are supported by research?

- Anthelmintic activity confirmed by in vitro and clinical studies in children with Ascaris infections.
- [Antimicrobial](/reference/antimicrobial/) properties validated against multiple bacterial strains.
- Anti-inflammatory activity supported by NF-kB inhibition studies.
- [Anticancer](/reference/anticancer/) potential validated through XIAP inhibition and multi-pathway modulation in preclinical models.
- Antioxidant activity confirmed by DPPH and other radical scavenging assays.

## What do recent clinical trials show?

- Sharma V, Gautam DNS, Radu AF and others 2022. [Reviewing the Traditional/Modern Uses, Phytochemistry, Essential Oils/Extracts and Pharmacology of Embelia ribes Burm](https://pubmed.ncbi.nlm.nih.gov/35883850/). *Antioxidants (Basel, Switzerland)*. PMID [35883850](https://pubmed.ncbi.nlm.nih.gov/35883850/) · [doi:10.3390/antiox11071359](https://doi.org/10.3390/antiox11071359)  
  Comprehensive review in Antioxidants journal detailing embelin and vilangin as major antioxidant compounds; established broad pharmacological profile including anthelmintic, anticancer, anti-inflammatory, and [antidiabetic](/reference/antidiabetic/) activities. Called for more rigorous clinical trials.
- Kamath AJ, Chandy AS, Joseph AA and others 2023. [Embelin: A multifaceted anticancer agent with translational potential in targeting tumor progression and metastasis](https://pubmed.ncbi.nlm.nih.gov/38234968/). *EXCLI journal*. PMID [38234968](https://pubmed.ncbi.nlm.nih.gov/38234968/) · [doi:10.17179/excli2023-6590](https://doi.org/10.17179/excli2023-6590)  
  Comprehensive review confirming embelin modulates NF-kB, PI3K/AKT, and STAT3 signaling pathways. Demonstrated anti-proliferative, pro-apoptotic, and anti-metastatic activities across multiple cancer cell lines including glioma, breast, and leukemia.

*3 further claims previously listed here could not be traced to a published paper and have been removed. An absence here means we could not identify the source, not that no work exists.*

## Recent safety updates

- Clinical trial in children with ascarids showed no adverse effects during or after treatment with alcoholic (80% success) and aqueous (55% success) extracts.
- Embelin demonstrated anti-fertility/anti-spermatogenic effects in animal models; contraindicated in pregnancy and in individuals attempting conception.
- High doses may cause gastrointestinal irritation; recommended to use under practitioner supervision with standardized embelin content.

## What is it made of?

### Key Active Markers

- Embelin
- Quercitol
- Tannins
- Vilangin
- Christembine 
- Embelinol
- Embeliaribyl ester
- Embeliol 
- Volatile oils and 

**Analytical Methods:** HPLC fingerprinting, TLC (identity), LC-MS/MS (marker quantification)

## Dosage forms and preparation

**Dosage Forms:** Churna (powder), Kwatha (decoction), Capsule, Tablet, Taila (medicated oil), Leha/Avaleh

**Standard Dosage:** 1-3 g powder twice daily; 50-100 mL decoction twice daily; 250-500 mg standardized extract capsule twice daily

**Bioavailability:** Embelin (major active, 2,5-dihydroxy-3-undecyl-p-benzoquinone) has moderate oral bioavailability (~30-40%) due to reasonable lipophilicity (log P ~5). Absorption is enhanced by lipid co-administration (50-70% increase with fatty meal). Undergoes hepatic metabolism via CYP450 [enzymes](/glossary/compounds-d-g/#enzymes). Embelin has shown dose-dependent pharmacokinetics in animal studies with Tmax of 2-4 hours and elimination half-life of 4-6 hours.

**Optimal Timing:** Morning on empty stomach for anthelmintic action (3-7 day course); before meals for digestive action

**Standardized Extract:** Fruit extract standardized to >5% embelin by HPLC; total quinone content >8% by UV spectrophotometry

**Shelf Life:** Dried fruits: 18-24 months; Powder: 12-18 months; Capsules/Tablets: 24-36 months; Decoction: prepare fresh

**Storage:** Airtight containers at 15-25 deg C, protected from light and moisture. Embelin is susceptible to photodegradation; opaque packaging recommended.

**Marker Compounds:** Embelin, Vilangin, Christembine, Quercitol, Volatile oil (with terpenes), Homoembelin, Rapanone, Cinnamic acid

### Extraction Methods

- Hydroethanolic extraction (60-80% ethanol)
- Supercritical CO2 extraction for embelin-rich fraction
- Soxhlet extraction with ethanol
- Aqueous decoction
- Hexane extraction for quinone-rich fraction

### Synergistic Combinations

- Vidanga + [Haritaki](/herb/haritaki/) - classical anthelmintic combination
- Vidanga + [Pippali](/herb/pippali/) + Saindhava - Vidangadi Churna for intestinal worms
- [Chitrak](/herb/chitrak/) (Plumbago zeylanica) - enhanced antiparasitic action
- [Neem](/herb/neem/) ([Nimba](/herb/nimba/)) - broad-spectrum antiparasitic combination
- [Trikatu](/herb/trikatu/) - bioavailability enhancement

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Canonical version of this page: https://nighantu.ageayurveda.com/herb/vidanga/

## Sources

- Amidha Ayurveda Herb Database (700+ herbs, CC-BY-4.0)
- Web research (clinical trials, WHO monographs, safety databases)
- Ayurvedic Pharmacopoeia of India

Published by Age Ayurveda in the Nighantu. Educational reference only, not medical advice.
Incorporates material from the Amidha Ayurveda Herb Database under CC BY 4.0.