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Latin pharmacognostic name: Zingiberis Rhizoma Praeparatum

Alternate Chinese names: 黑姜 hēi jiāng; 炮干姜 pào gān jiāng; 炮姜炭 pào jiāng tàn; 干姜炭 gān jiāng tàn; 姜炭 jiāng tàn

Kingdom: Plant

Origin in PRC Pharmacopoeia: Zingiber officinale (Willd.) Rosc. (PRC Pharmacopoeia)

Origin (other sources): Zingiber officinale (Willd.) Rosc.

Use: Medicinal

Category: Blood-stanching agents / Channel-warming blood-stanching agents

Properties: Bitter, astringent, slightly acrid; warm.

Channel entry: Liver and spleen channels.

Indications:

• Warms the channels/menses and stanches bleeding: Vacuity cold bleeding patterns, such as vomiting of blood (blood ejection), bloody stool, and flooding and spotting.
• Warms the center, relieves pain, and checks diarrhea: Treats abdominal pain, vomiting, diarrhea. While pào jiāng is derived from the same plant (ginger) as Shēng jiāng (生姜 Zingiberis Rhizoma Recens, fresh ginger) and Gān jiāng (干姜 Zingiberis Rhizoma, dried ginger), they differ in their preparation methods and medicinal nature. All three products warm the center and disperse cold, but shēng jiāng specifically disperses exterior cold and is very effective for treating vomiting, while gān jiāng tends to dispel interior cold. Pào jiāng penetrates the blood aspect, so it is good at warming the channels/menses to stanch bleeding. Note also Shēng jiāng pí (生姜皮 Zingiberis Rhizomatis Cortex, ginger skin), which is acrid and cold, and disinhibits water and disperses swelling to treat water swelling and purulent sores.

Dosage & Method: Oral: 3–9 g in decoctions.

Notes: This is dried ginger that is stir-fried over a high heat until black on the outside.

See also: Gān jiāng (干姜 Zingiberis Rhizoma, dried ginger)

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