Bipinnatpolyacetylenic loside── a new natural constituent isolated from Bidens bipinnata, produced sig nificant inhibitory effects on swelling of mice ear induced by croton oil and hind paw edema induced by egg wbite,decreased the weight of cotton pellet granuloma implanted in rats,and also greatly inhibited blood cap illary permeability of mice and leukocyte movement induced by acetic acid in rats. Compared with that of dex amethasone,no significant difference and even slightly more potent effects were obs...