Ren Shen Dang Shao - Ginseng & Tang-kuei Formula Granules - 人參當芍散Ginseng & Tang kuei Formula Ren Shen Dang Shao Functions For postpartum illness, rheumatic heart disease delayed menstruation, chronic fatigue syndrome and impotence. Package 100g (3. 5oz) of the concentrated granules extracted from 500g of the raw herbs. Suggested Use Dissolve 1 2 grams in a cup of hot water to make a tea 2 3 times daily. Ingredients Tangkuei, Peony (White), Atractylodes (White), Poria, Ginseng, Ligusticum, Cinnamon Bark, Licorice