Thirumoolar Karukkidai Vaithiyam (திருமூலர் கருக்கிடை வைத்தியம்) deals with the basic principles of Siddha Medicine and describes about preparation of various types of medicines.
The original publication in hard copy (first edition) done on 1884 by Irusappa Muthaliyar of Thiruvotriyoor.
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