WH Acupuncture & Herbs Centre

This medicinal is the dried bark of Eucommia ulmoides Oliv.(Fam.Eucomiaceae). It is harvested between April and June. After removal of its bark, it is piled for sweating out until the interior layers appear purplish-brownish and then it is dried by natural sunlight . It is utilized in its unprocessed or stir-baked with salt water form.

[ Medicinal Properties]: Sweet, warm; relate to liver and kidney meridians.

[ Medicinal Efficacies ]: Tonify kidney and liver; strengthen tendons and bones; prevent abortion.

[ Clinical Applications ]: 1. Syndrome of kidney deficiency, lumbago      It is good at treating lumbago and is especially able to treat that due to kidney-deficiency. In this case, it is used in combination with Hutaorou and Buguhi, as  in the Qing'e Pills. For lumbago with cold sensation due to wind-dampness, it is usually prescridbed with Duhuo and Sanjisheng, as in the Duhuo Jisheng Decoction. In cases of traumatic injuries, it is combined with Chuangxiong and Guixin. To treat menstruation Problems, this medicinal is combined with Danggui and Chuangxiong. For vertigo due to deficiency of liver-kidney yin and hyperactivity of liver yang, it is used in combination with Xiakucao and Sangjisheng. To treat impotence and frequent urination, due to deficiency of kidney-yang, it is often combined with Lurong and Shanyurou.

2. Treatened and habitual abortion    It is effective for threatened abortion, by itself, or used in combination with Sangjisheng and Xudua, as in the Duzhong Pills. For habitual abortion, it is often combined with Chuanduan and Shanyao.

[ Usage and Dosage ]: 10-15g.

[ Precautions ]: Stir-baking enables the active ingredients of Duzhong to be activate by the process of destroying its gelatine content;  therefore the stir-baked form has a more powderful efficacy than the unprocessed form. Being a warm-tonic, it should be used cautiously  in cases of yin deficiency with efulgent fire.

杜仲为杜仲科植物杜仲Ｅucommia ulmoides Oliv.的树皮。主产于四川、云南、贵州、湖北等地。4～６月采收，去粗皮堆置“发汗” 至内皮呈紫褐色，晒干。生用或盐水炒用。