Mecury based Siddha Medicines. The branch or science of Mercury based medicines are called as Rasa sasthra ரச சாத்திரம், Rasa Oushadam – ரச ஔஷடம், Rasa vignanam – ரச விஞ்ஞானம், Rasa vaithiyam – ரச வைத்தியம், Rasavaatham – ரசவாதம் etc… In Siddha Medicine, Mercury is extensively used in the preparation of medicines […]