YIN CHEN WU LING SAN

Virgate Wormwood and Five-Ingredient Powder with Poria

Yin Chen Wu Ling San is a classical formula used to clear Dampness, promote urination, and resolve jaundice, particularly in patterns of Damp predominance with mild or minimal Heat. It is most commonly indicated in Yin-type or mixed jaundice, where fluid obstruction is primary and Heat signs are not pronounced.

This formula combines Yin Chen Hao with Wu Ling San, addressing both biliary Dampness and impaired fluid transformation.

Key actions

• Clears Dampness

• Promotes urination

• Resolves jaundice

• Regulates fluid metabolism

Herbal composition

• Yin Chen Hao (茵陈蒿) – Artemisiae Scopariae Herba

• Fu Ling (茯苓) – Poria

• Ze Xie (泽泻) – Alismatis Rhizoma

• Zhu Ling (猪苓) – Polyporus

• Bai Zhu (白术) – Atractylodis Macrocephalae Rhizoma

• Gui Zhi (桂枝) – Cinnamomi Ramulus

Clinical indications

Traditionally used in presentations such as:

• Dull or mild yellow jaundice

• Yellowing of the skin or sclera without strong Heat signs

• Heaviness of the body

• Poor appetite

• Abdominal fullness

• Scanty or difficult urination

• Tongue with white or slightly greasy coating

• Slippery or moderate pulse

Pattern focus

This formula treats Damp obstruction with impaired fluid transformation, rather than strong Damp-Heat.
It is particularly suited to Yin-type jaundice or mixed patterns, where Dampness is primary and Heat is secondary or absent.

Cautions

• Not indicated for bright yellow (Yang-type) jaundice with strong Heat signs

• Use with caution in patients with significant Yin deficiency

• Prescribe according to individual pattern differentiation