# Navaratna Raja Mriganka Rasa

> Navaratna Raja Mriganka Rasa is a rasa preparation, a herbo-mineral formulation of the rasa shastra tradition. An absence here means we could not identify the source, not that no work exists.

## Key facts

- **Pharmacopoeia status:** Classical Rasashastra formulation from Rasendra Sara Sangraha; manufactured by select licensed Ayurvedic pharmacies under AYUSH guidelines; classified as a Rasa Aushadhi (mineral medicine) requiring Schedule E-1 prescription; regulatory scrutiny due to heavy metal content

## Names and identification

| Language | Name |
|----------|------|
| English | [Navaratna Raja Mriganka Rasa](/herb/navaratna-raja-mriganka-rasa/) |

## Where is it described in the classical texts?

Rasendra Sara Sangraha by Gopalakrishna Bhatt (14th century CE); also referenced in Rasa Ratna Samuchaya and other Rasashastra texts

## How does it work?

- Navaratna (9 gems) concept provides synergistic mineral-gem therapy targeting all 7 Dhatus (body tissues) and 3 Doshas simultaneously
- [Swarna Bhasma](/herb/swarna-bhasma/) (gold calx) acts as a potent [Rasayana](/reference/rasayana/) (rejuvenative) with [immunomodulatory](/reference/immunomodulatory/) and [neuroprotective](/reference/neuroprotective/) effects at nanoparticle scale
- Parada-[Gandhaka](/glossary/concepts-a-m/#gandhaka) (mercury-sulfur) Kajjali base provides catalytic carrier for other Bhasmas, enhancing their tissue penetration (Yogavahi property)
- Multiple metal Bhasmas (iron, copper, silver, tin) provide trace mineral supplementation addressing multi-system deficiencies
- Gemstone Bhasmas (ruby, emerald, topaz, cat's eye, diamond) are believed to provide subtle energy influences on specific organ systems and chakras in traditional Rasashastra theory
- Coral and Pearl Bhasmas provide bio-calcium and act as cooling agents balancing the heating effect of metallic Bhasmas

## Which traditional uses are supported by research?

- Rejuvenation and anti-aging (Rasayana) - traditional use as a potent rejuvenative for debility and aging; limited modern validation due to safety concerns precluding clinical trials
- Tridosha balance and multi-system tonic - traditional claim for balancing all three Doshas; conceptually supported by the multi-mineral composition but lacks rigorous clinical evidence

## What do recent clinical trials show?



*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

- Contains multiple heavy metals including mercury, lead, arsenic (Haratala), and copper - EXTREMELY high risk profile requiring strict medical supervision
- [Naga Bhasma](/herb/naga-bhasma/) (lead calx) poses particular concern for lead poisoning; WHO and FDA have flagged Ayurvedic preparations containing lead
- Mercury (Parada) content, even when purified, raises concerns about mercury bioaccumulation and neurotoxicity with chronic use
- Shuddha Haratala (arsenic trisulfide) is a known carcinogen in inorganic form; traditional purification claims require modern analytical validation
- Not recommended for self-medication under any circumstances; requires expert Vaidya supervision with baseline and periodic monitoring of blood mercury, lead, arsenic levels, and liver/kidney/neurological function
- Banned or restricted in several countries due to heavy metal content; FDA has issued warnings about Ayurvedic products containing detectable lead, mercury, and arsenic

## 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

**Standard Dosage:** 30–60 mg

**Bioavailability:** Multi-component nanocomposite; broad-spectrum mineral bioavailability

**Optimal Timing:** As directed by physician; with specific anupana per condition

**Standardized Extract:** Nine-gem + metallic bhasma compound (Navaratna = nine gems)

**Shelf Life:** Indefinite

**Storage:** Airtight, premium container

**Marker Compounds:** Nine gem derivatives, Metal oxide nanoparticles, Herbal bioactives

**Quality Parameters:** Multi-component assay, free metals below limits, standard Rasaushadhi tests

**Vehicle (Anupana):** As per specific condition

---

Canonical version of this page: https://nighantu.ageayurveda.com/herb/navaratna-raja-mriganka-rasa/

## Sources

- Amidha Ayurveda Herb Database (700+ herbs, CC-BY-4.0)
- Web research (clinical trials, WHO monographs, safety databases)
- Ayurvedic Pharmacopoeia of India
- Classical Ayurvedic texts (Charaka Samhita, Sushruta Samhita, Bhavaprakasha Nighantu)

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.