What Chinese patent medicine should be taken for deficiency of both spleen and kidney?
Commonly used Chinese patent medicines for deficiency of both the spleen and kidney include Fuzi Lizhong Pills, Jinkui Shenqi Pills, Sishen Pills, Shenling Baizhu Powder, and Pishen Liangzhu Pills, among others, which should be selected according to specific syndrome patterns. Detailed analysis is as follows:

1. Fuzi Lizhong Pills: The primary effect is warming the middle-jiao and strengthening the spleen. Suitable for cases of spleen-kidney deficiency with predominant yang deficiency, it helps alleviate symptoms such as cold abdominal pain, cold hands and feet, and loose stools by warming yang and dispelling cold, thereby enhancing the transformation and transportation functions of the spleen and kidney.
2. Jinkui Shenqi Pills: Function to warm and tonify kidney yang and promote qi transformation to resolve fluid retention. Indicated for spleen-kidney deficiency with marked kidney yang deficiency, it can relieve symptoms such as soreness and weakness in the lower back and knees, aversion to cold with cold limbs, and poor urination. It indirectly supports the recovery of spleen yang and improves coordinated function between the spleen and kidney.
3. Sishen Pills: Effective in warming the kidneys, dispelling cold, astringing the intestines, and stopping diarrhea. Mainly used for early-morning diarrhea (wugengxie), poor appetite with indigestion, abdominal pain, and soreness in the waist caused by spleen-kidney deficiency. It alleviates chronic, deficiency-type diarrhea through intestinal astringency and simultaneous warming and tonification of the spleen and kidney.
4. Shenling Baizhu Powder: Primarily functions to strengthen the spleen and stomach and benefit lung qi. Suitable for spleen-kidney deficiency with predominant spleen qi deficiency, it improves symptoms such as poor appetite, loose stools, shortness of breath with cough, fatigue, and limb weakness. By invigorating the spleen and reinforcing qi, it provides a foundation for kidney transformation and indirectly nourishes kidney qi.
5. Pishen Liangzhu Pills: Specifically formulated for deficiency of both spleen and kidney, it strengthens the spleen and boosts qi while nourishing the liver and kidney. It comprehensively improves symptoms associated with spleen-kidney deficiency such as soreness and weakness in the lower back and knees, poor appetite, dizziness, tinnitus, and cold limbs. This formula simultaneously tonifies the spleen and benefits the kidney, offering targeted regulation.
Chinese patent medicines should be taken under the guidance of a qualified physician based on proper pattern differentiation; self-medication without professional advice is not recommended. During treatment, avoid raw, cold, and greasy foods to prevent additional strain on the spleen and kidney.