Chinese Siphonostegia Herb Classic Formulas … Natural Herb Library

Primary Actions

Activates Blood and removes stasis in traumatic injury and menstrual obstruction, especially where heat and stasis combine.
Stimulates menstruation and relieves pain in amenorrhea or dysmenorrhea patterns marked by retained stasis.
Cools Blood and stops bleeding in selected heat-stasis presentations such as abnormal uterine bleeding or blood-tinged urination.
Clears heat and promotes urination in damp-heat presentations involving jaundice or urinary irritation.

Blood-stasis and trauma combinations with Tao Ren or San Qi ... the main practical use pattern for Bei Liu Ji Nu.
Menstrual-obstruction formulas with Dang Gui and Yi Mu Cao ... a common lower-burner stasis lane.
Heat-stasis and urinary-damp combinations ... a more specialized use for bleeding and jaundice presentations.

Traditional summaries describe Yin Xing Cao or Bei Liu Ji Nu as bitter and cold, entering the Spleen, Stomach, Liver, and Gallbladder.
Its core actions are activating Blood, regulating menstruation, cooling Blood to stop bleeding, and clearing damp-heat through urination.
The long-standing naming collision with Liu Ji Nu is historical, but the medicinal identity here is Siphonostegia chinensis.