Comparative physicochemical, phytochemical and HPTLC studies on root species used as Patala in Ayurvedic system of medicine

The Ayurvedic Pharmacopoeia of India (API) describes roots9 and stem bark of S. chelonoides as an authentic candidate for Patala. 10 Literature emerged from classic texts recommends S. tetragonum and R. xylocarpa belonging to the same family, Bignoniaceae can also be used as Patala 11 ( Fig. 1). As the synonyms mentioned to describe Patala in Ayurvedic text is not enough to differentiate the species, these controversies had led to drug adulteration which ultimately affects the public health. In order to overcome these confusions an attempt has been made to facilitate the rapid and secure method to distinguish the species recommended as Patala, by using pharmacognostic standards.

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