10.22376/ijpbs.2019.10.1.p1-12 Volume 3 Issue 4 2012(October - December) The present investigation was undertaken is to explore the antiulcer activity of the lessThan i greaterThan Gunmathi Chooranam lessThan /i greaterThan in rats by pyloric ligation method. The experimental parameters used were ulcer index, gastric pH parameters. The animals groups were divided in five controls, standard (Ranitidine 100 mg/kg) and lessThan i greaterThan Gunmathi Chooranam lessThan /i greaterThan in 125, 250 and 500 mg/kg. The siddha formulation produced the significant action against the antiulcer group's animal in all parameters. The lessThan i greaterThan Gunmathi Chooranam lessThan /i greaterThan was found to be good antiulcer drug in siddha system. S. ARULSORUBI, P.PARTHIBAN, K. KANAGAVALLI, J. ANBU AND ASHWINI ANJANA Gunmathi Chooranam, Pyloric ligation, Ranitidine, Antiulcer, Siddha System 638-644