In Rasa Shastra (the branch that deals with pharmaceutical processing of Ayurveda formulations), Shodhana is a process that is employed during the pharmaceutical processing either to detoxify, purify, or to potentiate the efficacy of the raw materials (of herbal, mineral, metal or animal origin).[1]
Shodhana is of two types in Rasashastra. Samanya or general purification method and Vishesha shodhana or the Specific methods of purification.