Xi Xin (Asari Herba)

Xi Xin (細辛), the herb Asarum, strongly disperses wind-cold, warms the Lung to transform thin phlegm, opens the nasal passages and relieves pain; a potent, warming herb used in small doses.

Xì Xīn  ·  細辛

Latin / Pharmaceutical Name

Asarum spp. (Herba Asari)

Common English Name

Asarum / wild ginger

Taste

Acrid

Temperature

Warm

Channels Entered

Lung, Kidney, Heart

Actions & Functions

  • Disperses wind-cold and relieves pain (headache, toothache)
  • Warms the Lung and transforms thin, watery phlegm
  • Opens the nasal passages

Indications

Wind-cold with severe headache and body pain; cough and wheezing with thin, watery phlegm from cold; and nasal congestion and toothache.

Dosage

1-3 g in decoction.

Common Combinations

With Ma Huang and Fu Zi (Ma Huang Fu Zi Xi Xin Tang) for exterior cold with yang deficiency.

Cautions & Contraindications

Potent; use only in small doses. Avoid in yin deficiency with heat and qi deficiency with sweating. Classically incompatible with Li Lu. Contains aristolochic-acid concerns in some sources - use only quality-assured material.

About Attilio

Doctor of Chinese medicine, acupuncture expert and author of My Fertility Guide and My Pregnancy Guide.

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