Chebulanin is a topoisomerase I inhibitor. Chebulanin inhibits the calcineurin pathway in C. neoformans.Chebulanin exhibits potent antifungal activity against various human pathogenic fungi with minimum inhibitory concentrations ranging from 0.25 to over 64 μg/ml. Chebulanin suppresses the expression of inflammatory mediators and prevents cartilage destruction and bone erosion in mice, therefore, chebulanin is a strong therapeutic alternative for the treatment of rheumatism arthritis.Chebulanin shows strong radical scavenging activity, good potency to chelate Fe2⁺ and good inhibition ability of lipid peroxidation. Chebulanin has apparent capacities of inhibiting the survival of MCF-7 human cancer cell line.