Rasamanikya
Rasamanikya is a rasa preparation, a herbo-mineral formulation of the rasa shastra tradition. [Process standardization of rasamanikya](https://pubmed.ncbi.nlm.nih.gov/22131676/). PMID [22131676](https://pubmed.ncbi.nlm.nih.gov/22131676/) · [doi:10.4103/0974-8520.68195](https://doi.org/10.4103/0974-8520.68195) Established standardized manufacturing procedures. Shodhana significantly reduced arsenic content compared to raw orpiment.
| Substance type | Herbo-mineral (rasa shastra) preparation, not a single plant |
|---|
Names and identification
| Language | Name |
|---|---|
| English | Rasamanikya |
How does it work?
- Arsenic sulfide (As2S3) in processed form has demonstrated immunomodulatory and anti-proliferative properties - similar to the mechanism by which arsenic trioxide (As2O3) is used in modern oncology for acute promyelocytic leukemia treatment
- Anti-dermatological action: Arsenic compounds modulate keratinocyte proliferation and immune cell activity in skin, relevant to traditional use in skin diseases; may act through inhibition of NF-kB and modulation of apoptotic pathways
- The insoluble sulfide form provides a slow-release mechanism with lower peak blood arsenic levels compared to soluble arsenic compounds, potentially providing therapeutic effects at reduced toxicity
Which traditional uses are supported by research?
- Skin diseases (Kushtha): Traditional use in psoriasis and chronic dermatoses has indirect validation from historical Western medical use of arsenic for psoriasis (Fowler’s solution, 19th century) and modern understanding of arsenic’s anti-proliferative effects on keratinocytes - however, the practice was abandoned in Western medicine due to carcinogenic risk
- Fever and respiratory conditions: Traditional use in Jwara (fever) and Shwasa (asthma) partially supported by arsenic’s documented immunomodulatory properties, but no specific clinical trials validate these indications for Rasamanikya
What do recent clinical trials show?
- Srimannarayana K, Patgiri BJ, Prajapati PK 2010. Process standardization of rasamanikya. Ayu. PMID 22131676 · doi:10.4103/0974-8520.68195
Established standardized manufacturing procedures. Shodhana significantly reduced arsenic content compared to raw orpiment. ICP-AES confirmed arsenic and sulfur as major constituents. Different preparation methods yielded products with varying arsenic concentrations.
2 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
- CRITICAL: Arsenic is classified as a Group 1 carcinogen by IARC. Chronic arsenic exposure even at low levels is associated with skin cancer, lung cancer, bladder cancer, and cardiovascular disease
- Clinical pilot study showed increased blood arsenic levels after just 15 days of use - while acute clinical toxicity was not observed, the long-term carcinogenic risk of elevated blood arsenic is well-established
- Historically, arsenic was used in Western medicine for psoriasis (Fowler’s solution) but was abandoned due to recognized carcinogenic and chronic toxicity concerns - the same scientific evidence applies to Rasamanikya
- The arsenic sulfide form (As2S3) is less acutely toxic than arsenic trioxide (As2O3) due to lower solubility, but chronic exposure still poses carcinogenic risk; no long-term carcinogenicity studies specific to Rasamanikya exist
- Cases of chronic arsenic poisoning following Ayurvedic medication use (including Rasamanikya) have been documented in medical literature; symptoms include skin hyperpigmentation, keratoses, neuropathy, and organ damage
What is it made of?
Mineral/Elemental Profile
- Primary component: Mercury-based preparation (Parada) with herbal processing
- Note: Restricted use — requires strict Shodhana protocols and expert supervision
Analytical Methods: AAS/ICP-MS (heavy metals), XRD, Namburi phased spot test
Dosage forms and preparation
Dosage Forms: Vati or powder
Standard Dosage: 60–125 mg twice daily
Bioavailability: Arsenic sulfide converted to non-toxic form through processing
Optimal Timing: With honey or ghee; after meals
Standardized Extract: Shuddha Haratala (purified orpiment/arsenic trisulfide) processed to ruby-red compound
Shelf Life: Indefinite
Storage: Airtight, labeled container; Schedule E1
Marker Compounds: Arsenic sulfide (processed), Sulfur compounds
Quality Parameters: Free arsenic <3 ppm (critical), characteristic ruby-red color (Manikya = ruby), standard tests
Vehicle (Anupana): Honey, ghee, or Haridra Khand
Published research
Literature indexed in PubMed that concerns this subject, grouped by study type. A paper appearing here is a record of what has been published, not evidence that the subject works, and laboratory or animal results do not transfer to people. Study titles link to PubMed so you can read the source rather than take our word.
Laboratory and animal studies1
- 2010. Process standardization of rasamanikyaAyu. PMID 22131676 · doi:10.4103/0974-8520.68195
Consult a qualified vaidya before acting on anything here. Ayurvedic practice is prescribed to a person, not to a condition: the same dravya is given, withheld or substituted depending on your constitution, your agni, the season and what else you are already taking. A page cannot know any of that. Self-prescribing from a reference is how the wrong preparation, the wrong dose or the wrong anupana gets used.
Educational reference only. Nothing on this page is medical advice, a diagnosis, or a recommendation to take anything. Traditional uses and research findings are reported as published, not as claims about what any product does. If you take prescribed medication, raise any interaction with the prescriber rather than acting on a page. See our editorial standards.