Standard operating procedure of Hingulottha Parada

Parada (mercury) is an important ingredient of Ayurvedic drugs particularly of the Rasayogasi.e. metallic and mineral formulations. According to the classical texts Hingulottha Paradahas similar properties to Ashtasamskarita Parada. Generally Parada is collected by UrdhvaPatana (upward sublimation), Adhah Patana (downward sublimation), and Tiryanka Patana(transverse sublimation) method from the Hingula (cinnabar) i.e. HgS. There are so manymethods with same principles which are found for the extraction of Parada from Hingula. Butmost of the methods are not convenient to procure Parada from Hingula. Considering this, apharmaceutical study has been taken up on extraction of Parada from Hingula by Nadayantramethod. Average yield of 73.00% Hingulottha Parada was obtained in this study.