Eranda Paka

Names and identification

Language	Name
English	Eranda Paka
Latin/Botanical	Ricinus communis L. (processed castor preparation)

Key Phytochemical Constituents

• Ricinoleic acid (primary active)
• Oleic acid
• Linoleic acid
• Stearic acid
• Palmitic acid
• Ricinine (alkaloid - reduced by processing)
• Dehydrodihydroxycastor oil
• Undecylenic acid
• Phytosterols
• Tocopherols

How does it work?

• Ricinoleic acid activates EP3 prostaglandin receptors in intestinal smooth muscle, stimulating peristalsis and promoting laxative effects; processing with jaggery moderates the cathartic intensity
• Anti-inflammatory effects mediated through ricinoleic acid’s inhibition of COX-2 and 5-LOX pathways, reducing prostaglandin and leukotriene synthesis in joint and muscle tissue
• Processing (Paka vidhi) with jaggery/sugar reduces ricinine alkaloid content while enhancing bioavailability of ricinoleic acid, providing a safer therapeutic preparation than raw castor oil

Which traditional uses are supported by research?

These summaries come from the source notes, which do not name the studies behind them.

• Virechana (laxative and purgative): traditionally used as a laxative and purgative. Pharmacological studies have reported stimulation of intestinal motility linked to ricinoleic acid.
• Amavata (rheumatoid conditions): traditionally used for joint and rheumatic complaints. Preclinical studies have reported reduced joint inflammation and pain.
• Deepana (digestive stimulant): traditionally used to stimulate digestion. Studies have reported increased gastric motility and secretion when the herb was processed with jaggery.

What do recent studies show?

• Ramothloa TP, Mkolo NM, Motshudi MC and others 2025. Phytochemical Composition and Multifunctional Applications of Ricinus communis L.: Insights into Therapeutic, Pharmacological, and Industrial Potential. Molecules (Basel, Switzerland). PMID 40807390 · doi:10.3390/molecules30153214
  Comprehensive review documenting the diverse therapeutic applications of castor-derived preparations including anti-inflammatory, antimicrobial, laxative, and wound healing properties across different formulation types.

Only studies that could be traced to a published paper are listed here. An absence here means we could not identify the source, not that no work exists.

Recent safety updates

• Eranda Paka (processed preparation) is considered much safer than raw castor seeds due to destruction of ricin toxin and reduction of ricinine during traditional processing with heat and jaggery
• Raw castor seeds are extremely toxic (ricin is lethal at 1-10 mg in adults); only properly processed preparations should be used medicinally under qualified supervision
• Excessive use may cause dehydration, electrolyte imbalance, and abdominal cramping; contraindicated in pregnancy (uterotonic effects), intestinal obstruction, and inflammatory bowel conditions

Dosage forms and preparation

Dosage Forms: Paka (processed confection - primary form), Modified tablet (compressed granules from Paka)

Standard Dosage: 10-20g Paka preparation once or twice daily as per classical dosing. Specific dose varies by formulation text followed.

Optimal Timing: Morning on empty stomach or after meals with warm milk, as directed by classical text and practitioner

Storage: Airtight glass or food-grade containers at room temperature (below 30 deg C). Use clean dry spoon for dispensing. Protect from moisture and direct sunlight.

Marker Compounds: Ricinine (from Eranda root), Total alkaloids, Ricinoleic acid (if oil used), Sugar content (Brix)

Synergistic Combinations

• Contains synergistic ingredients as per classical formulation
• With warm milk as Anupana for enhanced Rasayana effect
• With Sunthi powder for digestive support alongside the Paka