In Shao Yao Tang, which herbs are considered the chief herbs?

• A. Huang Lian
• B. Huang Qin
• C. Huang Lian & Huang Qin
• D. Bai Shao

Answer: (C)

In this formula, the most influential herbs are the ones that directly address the main problem the formula targets. Shao Yao Tang is built to clear heat and dampness, particularly from the middle burner, and the two herbs that provide the strongest damp-heat clearing are Huang Lian and Huang Qin. Their combined action delivers the key heat-clearing effect that drives the formula, making them the chief ingredients. Bai Shao, while important for nourishing yin and softening the liver to balance the formula, plays a supporting, harmonizing role rather than steering the main action. The other herbs in the formula work to modulate and support as needed, but the pair of Huang Lian and Huang Qin is what defines the chief component of Shao Yao Tang.