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Pharmaceutical study of Yashadabhasma
Santhosh Bhojashettar1, P G Jadar, V Nageswara Rao
1Department of Rasashastra and Bhaishajya Kalpana, NIA, Jaipur, Rajasthan, India.
Ancient Science of Life
|January 4, 2013
Summary
This study details the preparation of Yashadabhasma (Zinc calx) using traditional Ayurvedic methods with mercury as a medium. The resulting bhasma met classical quality standards after two purification cycles.
Area of Science:
- Ayurvedic Pharmacy
- Rasashastra
- Metallurgy
Background:
- Rasashastra focuses on Ayurvedic pharmaceutics, specifically Rasaoushadhis like bhasmas known for efficacy.
- Classical texts recommend mercury as a superior medium for preparing high-quality bhasmas.
Purpose of the Study:
- To prepare Yashadabhasma (Zinc calx) following Ayurvedic principles.
- To evaluate the quality of Yashadabhasma prepared using mercury as a medium.
Main Methods:
- Yashadabhasma was prepared using Samanya shodhana, Vishesha shodhana, Jarana, and Marana processes.
- Mercury (Parada) was used as the medium during incineration (Marana) within a Gajaputa (1000 cow dung cakes).
- The bhasma underwent two incineration cycles (putas).
Main Results:
- Yellow Yashadabhasma was successfully prepared.
- The bhasma passed classical quality tests (bhasmaparikshas) after two putas.
- The Nishchandratva test (absence of shining particles) was failed after the first puta but passed after the second.
Conclusions:
- The preparation method using mercury as a medium yielded a high-quality Yashadabhasma.
- Two incineration cycles (putas) are necessary to achieve the desired quality standards, including Nishchandratva.
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