Vidanga

Names and identification

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

Key Phytochemical Constituents

• Embelin (2,5-dihydroxy-3-undecyl-1,4-benzoquinone)
• Vilangin
• Christembine (alkaloid)
• Quercitol
• Embelinol
• Embeliaribyl ester
• Embeliol (1,2,4,5-tetrahydroxy-3-undecanyl benzene)
• Volatile oils and 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 precipitate worm proteins.
• 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 properties validated against multiple bacterial strains.
• Anti-inflammatory activity supported by NF-kB inhibition studies.
• 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. Antioxidants (Basel, Switzerland). PMID 35883850 · doi: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 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. EXCLI journal. PMID 38234968 · doi: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. 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 - classical anthelmintic combination
• Vidanga + Pippali + Saindhava - Vidangadi Churna for intestinal worms
• Chitrak (Plumbago zeylanica) - enhanced antiparasitic action
• Neem (Nimba) - broad-spectrum antiparasitic combination
• Trikatu - bioavailability enhancement