Artemisia Capillaris for Dampness Drainage

Overview:
Yin Chen Hao, known scientifically as Artemisia capillaris, is a widely used herb in Traditional Chinese Medicine (TCM), primarily valued for its ability to clear damp-heat from the liver and gallbladder, relieve jaundice, and support liver health. It is particularly effective in treating liver and biliary disorders and has been used for centuries in China as a key herb for managing various types of jaundice.

Botanical Characteristics:
Artemisia capillaris is a member of the Asteraceae (daisy) family and is native to China, Korea, and Japan. It is a perennial herb with fine, thread-like leaves and small yellow flowers. The young aerial parts are harvested in spring and early summer, then dried for medicinal use.

Traditional Uses in TCM:

• Clears damp-heat and relieves jaundice:
  Most commonly used to treat yang-type jaundice, marked by bright yellow skin or eyes, dark urine, and fever, often caused by acute hepatitis or other liver infections.

• Supports liver and gallbladder function:
  Used to help regulate bile secretion and reduce liver inflammation or congestion.

• Treats skin conditions:
  Occasionally used in formulas for eczema, pruritus (itching), or damp-heat skin rashes.

Pharmacological Properties:
Modern research has confirmed that Artemisia capillaris possesses hepatoprotective, choleretic (bile-promoting), anti-inflammatory, antioxidant, and antiviral effects. It has been studied for its potential role in liver disease management, especially in hepatitis, fatty liver, and cholestasis.

Preparation and Dosage:

• Typically used in decoctions or granule form.

• Often combined with other herbs such as Zhi Zi (Gardenia), Da Huang (Rhubarb), or Yin Chen Hao Tang (a classic formula).

• Typical dosage: 10–30 grams of dried herb.

Precautions:

• Not suitable for cold-type jaundice or spleen yang deficiency with loose stools.

• Use with caution during pregnancy and always under professional supervision.

• Long-term or excessive use without proper diagnosis is not recommended.