Stephania Root Slice (Stephania Tetrandra)

Stephania Root Slice (Stephania tetrandra), known in Traditional Chinese Medicine as Fang Ji (防己)—specifically Han Fang Ji (汉防己) to distinguish it from other species—is a cooling, bitter root traditionally used to dispel wind and dampness, reduce swelling, and relieve pain. These sliced root pieces are carefully dried to preserve their firm texture and therapeutic value, making them ideal for decoctions and traditional formulas.

In TCM, Han Fang Ji is most often used to treat edema, joint pain, and damp-heat conditions, especially those affecting the lower limbs and urinary system. It is well known for its ability to promote urination and reduce water retention while also alleviating discomfort caused by wind-damp bi syndrome, such as aching knees, heaviness in the legs, or hot, swollen joints.

Outside of TCM, Stephania tetrandra has gained interest for its anti-inflammatory and immune-modulating properties, and is sometimes used in broader herbal practice to support circulatory health and inflammation balance, although its use should always be supervised due to the presence of potent alkaloids.

When decocted, Stephania Root Slice produces a light-colored, bitter infusion and is typically paired with herbs like Huang Qin (Scutellaria), Yi Yi Ren (Coix Seed), or Gui Zhi (Cinnamon Twig) in formulas for dampness, heat, and fluid retention.

Each batch of Stephania Root Slice (Stephania tetrandra) is carefully selected and processed to ensure purity, safety, and traditional effectiveness. Whether used in joint support formulas, anti-edema decoctions, or damp-heat clearing blends, Han Fang Ji offers a time-honored herbal approach to fluid regulation, pain relief, and balancing internal moisture.