There is no such thing as the most effective proprietary Chinese medicine for irritable bowel syndrome. Irritable bowel syndrome belongs to the category of “diarrhea”, “constipation” and “bloating” in Chinese medicine. You can follow the doctor’s instructions to take the solid bowel capsule, solid bowel antidiarrhea pill, pain and diarrhea granules and other proprietary Chinese medicines for treatment. 1. Solid bowel capsule is composed of red stone resin, yellow dock, yellow cypress, etc. It has the function of dispersing cold and clearing heat, harmonizing and regulating. It has the effect of dispersing cold and clearing heat, harmonizing qi and blood, astringing the intestines and stopping diarrhea (relieving diarrhea by enhancing the function of intestinal astringency). It can treat diarrhea caused by spleen and kidney yang deficiency (deficiency of yang qi in the spleen and kidney), and cold and heat invading the intestines and stomach, with symptoms such as abdominal pain, abdominal distension and abdominal discomfort. Pregnant women should be cautious. 2. Pill of Stopping Diarrhea by Fixing Intestine, composed of ume or ume flesh, coptis, dried ginger and etc. It has the function of harmonizing the liver and spleen, astringing the intestines. It has the effect of harmonizing the liver and spleen, astringing the intestines and relieving pain. It is used for diarrhea and abdominal pain due to disharmony between the liver and spleen (the liver and spleen cannot work in harmony). This medicine contains poppy husk and Yanhusuo, athletes should be cautious. 3. Painful Diarrhea Ning Granules, composed of Paeonia lactiflora, Green Peel, Allium sativum and Atractylodes macrocephala. It has the functions of softening the liver, easing the urgency, dredging the liver to move qi, regulating the spleen and transporting dampness. It is used for abdominal pain, diarrhea, abdominal distension, abdominal discomfort caused by liver qi violating the spleen, and irritable bowel syndrome (diarrhea type, etc.) with the above symptoms. As there are many causes of irritable bowel syndrome, such as improper diet, emotional disorders, etc., it is recommended that patients consult a medical professional before taking the medication and take the medication as prescribed by the doctor.