1Endotoxic shock can be elicited by a systemic injection of LPS which induces the production and release of several cytokines.2 In response to these cytokines, several reactive oxygen species (ROS) are produced from cells such as neutrophils and other phagocytic cells, creating a status of oxidative stress.3 Thus, this type of stress may hypothetically support the assumption that LPSinduced cell injury would be retarded by modifying free radical metabolism with the aid of potent antioxidant pre-treatment from nature. Certain reports have claimed that a few herbal extracts can act on the central nervous system, thereby enhancing the faculties of learning and memory. 4 The . At the end of the study, rats were sacrificed, brain hippocampal region was removed and biochemical parameters were measured. Results: In WMT swimming length (cm) was increased in LPS-treated rats when compared to control animals, the swimming length (EEPM; 400 mg/kg) was found to be significant; in RAM, different doses of EEPM at 100, 200 and 400 mg/kg decreased the number of errors in entry 4.00±0.36, 4.16±0.16and 3.33±2.79 respectively when compared with control animals (2.66± 0.21). EEPM at 400 mg/kg showed significant activity, in CRT apparatus increased incorrect lever pressing was observed in LPS-treated rats when compared to control animals. Incorrect lever pressing was minimized by EEPM at 400 mg/kg (43.5±2.40). Conclusions: Our results showed that EEPM is a hopeful aspirant for hindrance of infection and inflammation induced brain damage by LPS.