Both Ku Ben Yi Bowel Tablets and Si Shen Wan are effective in treating diarrhea caused by kidney yang deficiency. The effect of the medicine varies from person to person, and it is impossible to judge whose effect is better. 1. Ku Ben Yi Bowel Tablet has the effect of warming the kidney and strengthening the spleen (warming the kidneys and strengthening the spleen), astringing the intestines and stopping diarrhea (relieving diarrhea by enhancing the astringency of the intestinal tract). It is suitable for diarrhea caused by yang deficiency of the spleen and kidneys (deficiency of yang qi in the spleen and kidneys), with symptoms such as scanty stools (or mucus or mucus-blood stools), bloating with scanty food, lingering abdominal pain (persistent mild abdominal pain), pale tongue with white moss, chilly (cold) limbs, lumbar soreness and weakness, as well as chronic enteritis with deficiency of veins with the above symptoms. Avoid eating cold, spicy and greasy things during the period of taking the medicine. 2. Si Shen Wan has the effect of warming the kidney and dispersing cold (warming the kidney and dispersing cold), astringing the intestines and stopping diarrhea, and is suitable for diarrhea caused by deficiency of kidney yang (lack of yang energy in the kidney), with symptoms of coldness of the face and yellow limbs, poor appetite, loose stools in the fifth day of the week, prolonged diarrhea, and intestinal sounding and abdominal distension. Solid Benevolent Tablets and Sishen Pills both have the effect of warming the kidney, astringent intestines to stop diarrhea, the indications for the use of the group are similar, but the user himself has individual variability, the effect of medication is different, so it is not possible to clearly determine who is better with the two drugs. The specific use of medication should be carried out under the guidance of a specialist physician, note that the contraindications and adverse reactions of the two are not clear.