Actions:

• Clears heat from yin deficiency: for chronic fevers, night sweats, steaming bone disorder, irritability or thirst.
• Clears lung heat and stops cough and wheezing.
• Cools the blood: for vomiting with blood, epistaxis, and blood in the urine.
• Drains floating fire in the kidney channel: for fire from deficiency causing toothache.

Contraindications:

• Caution in patients with an exterior disorder, and from cold from deficiency of the spleen and stomach.

Dosage:

• 6-15 Grams. Part used = root-bark