Cortex Eucommiae

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Source
The bark of Eucommta ulmoides Oliv., family Eucommiaceae.

Characteristics
The bark appearing as flat, varying in size, 3-7 mm thick. Outer surface grey-brown, with longitudinal cracks, lenticels seen when cork remained; inner surface dull purple and smooth. Numerous fine silvery and elastic sticky filaments presenting when broken. Prepared as thick strips. Sweet and slightly acrid in taste, warm in nature, and attributive to liver and kidney channels.

Indication
1 Invigorate the liver and kidney, strengthen the tendons and bones: For deficiency of the liver and kidney manifested as soreness of the loin and knees, flaccidity of lower limbs, and infantile paralysis.

2. Soothe the fetus: For threatened abortion due to hypofunction of the liver and kidney.

3. Lower blood pressure: For hypertention, especially those with deficiency of the liver and kidney.

Pharmacological Action .

1. Hypotensive.

2. Promoting phagocytosis of mononuclear phagocytes.

3. Sedative and diuretic.

Administration

Decoction: 9-15g; fried sample is better for hypertension