Pharmacological Aspects of Phyllanthus fraternus Standardized Extract (Rich in Lignans and Tannins) as a Pain Modulator

Abstract

Firstly, we have collected various parts of P. fraternus plant including the dried stems, leaves, and roots. In order to produce chronic inflammations, we further allowed injection to the left gastrocnemius muscle belly of rats with a freshly prepared solution of 3% carrageenan in normal saline (100μL). Thermal/heat hyperalgesia, mechanical hyperalgesia and muscle circumferences were determined in the current experimental model. In order to estimate, chronic pain modulating potential of P. fraternus, we have also studied histopathological studies and measurement of prostaglandin E-2 (PGE2).