10.22376/ijpbs.2019.10.1.p1-12 Volume 3 Issue 3 2012 (July - September) The present investigation was taken to explore the anticancer property of the lessThan i greaterThan Guru Pathangam lessThan /i greaterThan in swiss albino mice against Dalton ascites lymphoma (DAL). The experimental parameters used were mean survival time, increase in life span, cell count and hematological parameters. The groups were divided in four controls, standard (5-flurouracil) and lessThan i greaterThan Guru Pathangam lessThan /i greaterThan in 5 mg/kg for 3 days and 14 days peroral administration. The drugs were administered orally for 14 days to DAL groups except the control group. The siddha formulation produced the significant action against the cancer group's animal in all parameters. The lessThan i greaterThan Guru Pathangam lessThan /i greaterThan was found to be good anticancer drug in siddha system. P. Babu, J. Anbu, Ashwini Anjana And V.Velpandian DAL, Guru Pathangam, hematological, Mean survival time, Increase life span 281-289