功能主治活血；止血；利湿；解毒。主痛经；难产；产后腹痛；胞衣不下；崩漏；白带；咳嗽；吐血；痢疾；黄疸；淋痛；久疟；风湿痛；牙痛；瘰疬；疝气；跌打劳伤；毒蛇咬伤。用法用量内服：煎汤，9-15g(鲜品加倍...