Du Zhong is a commonly used Chinese medicinal herb. Generally, its efficacy includes tonifying the liver and kidneys, strengthening tendons and bones, and stabilizing pregnancy. It can alleviate kidney deficiency, relieve back pain, and improve erectile dysfunction. Here is a detailed analysis:
1. Efficacy:
   1. Tonifying the liver and kidneys: Du Zhong has a sweet and warm nature, and it belongs to the liver and kidney meridians. It has the effect of tonifying the liver and kidneys, making it suitable for patients with liver and kidney deficiency.
   2. Strengthening tendons and bones: Du Zhong has the efficacy of strengthening tendons and bones, effectively preventing muscle and bone aging, and enhancing the body's resistance.
   3. Stabilizing pregnancy: Du Zhong has the efficacy of stabilizing pregnancy. Pregnant women can appropriately consume Du Zhong under the guidance of a doctor, which can usually alleviate the symptoms of restless fetal movements.
2. Action:
   1. Alleviating kidney deficiency: Du Zhong usually has a good effect of tonifying the kidneys and strengthening yang, which can alleviate kidney deficiency. It is suitable for patients with kidney yang deficiency and kidney yin deficiency.
   2. Relieving back pain: Du Zhong usually can alleviate back pain caused by kidney deficiency, promote tendon and bone health, regulate blood circulation, and improve blood circulation in the lumbar region.