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ACRONYCHIA [降香, JIANG XIANG]

Name : AcronychiaAcronychia-oblongifolia-White-Aspen-472_opt

Chinese Name: 降香

Latin Name : Lignum Dalbergiae Odorifera

Overview

This herb  is the wood portion of the trunk and root of Dalbergia OdoriferaT. Chen of the family Leguminosae. It is mainly grown in the Guangdong, Guangxi, Yunnan, and Hainan provinces of China, and is collected yearround, skinned, sliced, and dried in the sun for use unprocessed. Acronychia is commonly used as a Qi-regulating hematostatic agent and anodyne for treating various types of pains, such as angina pectoris, gastrotestinal pain, and pain in the costal area.

Use of Acronychia in TCM

Acrid and warm, it acts on the liver, spleen, and stomach meridians.

Effects, Medicinal Uses, and Combinations

  1. Invigorates circulation of Qi, activates blood circulation, and relieves pain :
  • Acronychia can be used to relieve epigastric and abdominal pain caused by stagnation of Qi and blood in the spleen, and to relieve stomach and chest pain caused by blood stagnation. It is used alone or with salvia root and bulrush (pu huang).
  • Acronychia is often mixed with enidium, red peony, salvia, safflower, and other herbs to treat angina pectoris.
  1. Stop bleeding
  • Stops bleeding :
  • Acronychia is a hematostatic agent that treats blleding from internal injuries, trauma, sprains, or fractures. The powdered form the herb is used alone or with gall (wu bei zi) externally, or ingested with orange peel, moutan bark, curcuma root, and Chinese angelica in a decoction to treat spitting of blood. It is also applied externally as a hematostatic remedy.
  • To treat coronary heart disease, and gastrointestinal distension and pain, acronychia is blended with chuan xiog, carthamus, red peony, and salvia root to treat angina pectoris and pain in the chest. Acronychia is also used with ginseng root, salvia, and notoginseng, as in Huo Xue Tong Mai Pian.

Dosage

In a decoction, 3 to 6 g, or 1 to 3 g in powdered form.

Precautions

People with Heat in the blood or yin deficiency should be cautious when using acronychia.

Side Effects and Toxicity

No undesirable side effects or toxicity were reported at the therapeutic dose in classical Chinese material medica.

Chemical Constituents

Acronychia contains volatile oils. The chemical compounds dalbergin, nordalbergin, isodalbergin, o-methydalbergin, dalbergenone, and dalbergichromene have been isolated.

Pharmacological Findings

  1. Anticoagulating and antithrombotic. The oil of the plant inhibited thrombosis in rats.
  2. Acronychia and norbalbergin applied to rabbit heart specimens had a positive inotropic effect, increased cardiac output, decreased heart rate, and no arrhythmias were noted.