Siddha medicines made up of natural sources. It is available at present as a product of several cultural patterns with full of complexities and intricacies possessing many secrets. The siddha medicine as it is today; it is the product of all these different patterns as said above and requires a very careful study before bringing it under frames of scientifical references. A comparative study with other system of medicines and analysis based on the results of those studies, would help us to find out the basic principles on which this system.
The modern studies of ancient systems of medicines bring to light not only the high level of medical knowledge the ancient had, but also where they missed and how they missed. The comparative and analytical studies require as a first step, some knowledge about the various systems of medicines now extinct and extant.
The width and depth of the knowledge required should be in proportion to the extensiveness and intensity of the research to be undertaken. The second step is the group of collection, screening, analyzing and references. The third step includes the tangible service towards the development of siddha medicines.