10.22376/ijpbs.2019.10.1.p1-12 Volume 1 Issue 3 2010 (July - September) The effect of different extract from lessThan i greaterThan Bergenia ligulata Wall lessThan /i greaterThan in yeast induced fever in albino rats of wistar strain were assessed for antipyretic activity. Plant extracts were administered at the doses of 300 & 500 mg/kg body weight. The standard drug used was paracetamol (200mg/kg.p.o). Rectal temperature of experimental animals was recorded at a time interval of 1hrs, 2hrs, 3hrs, 4hrs & 5hrs after drug administration for evaluation of antipyretic activity. The ethanolic extract of roots and rhizomes of lessThan i greaterThan Bergenia ligulata Wall lessThan /i greaterThan at a dose of (500mg/kg.p.o) decreased the yeast induced fever in experimental animals. Nardev Singh,Atul K. Gupta,Vijay Juyal,Renu Chettri Bergenia ligulata Wall, extract, antipyretic, experimental animals. -