Kantakari

Names and identification

Language	Name
English	Kantakari
Latin/Botanical	Solanum xanthocarpum Schrad. & Wendl. (syn. S. surattense Burm. f., S. virginianum L.)

Key Phytochemical Constituents

• Solasonine
• Solamargine
• Diosgenin
• Solasodine
• Caffeic acid
• Carpesterol
• Esculentin (coumarin)
• Beta-carotene

How does it work?

• Bronchodilatory: Steroidal alkaloids and glycoalkaloids inhibit histamine and acetylcholine-induced bronchospasm through muscarinic receptor antagonism
• Anti-asthmatic: Solasodine stabilizes mast cells, reduces IgE-mediated degranulation, and suppresses eosinophil infiltration in airways
• Hepatoprotective: Caffeic acid and coumarins (esculentin) reduce lipid peroxidation and restore hepatic glutathione levels

Which traditional uses are supported by research?

• Bronchodilatory use for asthma and cough (Shwasa-Kasahara) validated through histamine-induced bronchospasm reversal in animal models
• Diuretic action (Mutrala) confirmed by significant increase in urine volume and electrolyte excretion in rats
• Antipyretic use supported by fever reduction in Brewer’s yeast-induced pyrexia model

What do recent clinical trials show?

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

• Safe at traditional Ayurvedic doses; steroidal glycoalkaloids may cause gastrointestinal irritation at excessive doses
• Should not be used during pregnancy due to potential uterine stimulant activity of steroidal compounds; avoid in patients with known nightshade sensitivity

Dosage forms and preparation

Dosage Forms: Churna (powder), Kashayam (decoction), Swarasa (juice), Avaleha (confection), Capsule, Syrup, Nebulizer solution (experimental)

Standard Dosage: 3-6 g powder twice daily; 10-20 mL juice; 50-100 mL decoction twice daily; 10-20 g Avaleha

Bioavailability: Steroidal alkaloids (solasonine, solamargine) show moderate oral bioavailability (~25-35%). Glycoalkaloids undergo partial hydrolysis in acidic gastric pH releasing aglycones with improved membrane permeability. Liposomal encapsulation of solasodine enhances pulmonary delivery for respiratory applications. Piperine co-administration increases bioavailability by ~40%.

Optimal Timing: After meals for respiratory conditions; Avaleha can be taken anytime with warm water or milk; decoction best taken morning and evening

Standardized Extract: Standardized to minimum 0.5% total steroidal alkaloids (as solasonine) and 2% total saponins by HPLC-ELSD

Shelf Life: 24 months for powder and capsules; 18 months for syrup; 12 months for Avaleha; decoction to be consumed within 24 hours

Storage: Store in airtight containers at 15-30°C. Syrup and Avaleha require preservative system (sodium benzoate 0.1% for syrups). Protect powder from moisture.

Marker Compounds: Solasonine, Solamargine, Solasodine, Carpesterol, Diosgenin, Apigenin, Caffeic acid

Extraction Methods

• Hydroalcoholic extraction (60-70% ethanol)
• Water decoction (traditional)
• Acid-aqueous extraction for alkaloid enrichment
• Ultrasound-assisted extraction
• Microwave-assisted extraction for rapid processing

Synergistic Combinations

• Vasaka (Adhatoda vasica) for bronchitis and asthma (Kantakari-Vasadi Kwatha)
• Tulsi for respiratory infections
• Yashtimadhu for cough suppressant formulations
• Pippali for Shwasa (asthma) management
• Bharangi for Kasa-Shwasa (cough-asthma) synergy