Objective To study the analgesic effects of total flavone of ginkgo biloba (TFG) and its mechanisms.Methods In the formalin test, hot plate test and acetic acid induced writhing test in mice, the analgesic effects of TFG were observed.Meanwhile, the contents of NO,MDA and PGE 2 in mice serum and the brain tissue in the hot plate test were measured.Results ip TFG remarkedly inhibited the pain of rats in the formalin test and prolonged the latencies of licking paws, as well as reduced the number of writh...