Da Chaihu Granules has the efficacy of reconciling Shaoyang (treating exogenous heat diseases in which the evil is between the half-expression and half-li) and catharticizing the heat knot internally, and can be used for Shaoyang disharmony, liver and gallbladder dampness-heat (the accumulation of dampness-heat evil in the liver and gallbladder), etc. It is a proprietary Chinese medicine. Da Chaihu Granules belongs to the category of proprietary Chinese medicines, and its main ingredients include Chaihu, Paeonia lactiflora, Citrus aurantium (stir-fried), rhubarb, jujube, scutellaria, and so on. The drug has the efficacy of reconciling the Shaoyang (treating external heat diseases with evil between the half-expression and half-li) and cathartic heat knot, and can be used in the treatment of bitter mouth, nausea and vomiting, constipation, hidden pain in the right epigastric region, fullness and discomfort, and red tongue with yellow fur and greasy coating due to the disharmony of the Shaoyang and the dampness and heat of the liver and gallbladder (the evil of dampness and heat is deposited in the liver and gallbladder), and also in the treatment of cholecystitis with the above symptoms. After taking the medicine, patients usually have more frequent bowel movements, and some patients may have diarrhea. If patients cannot tolerate the symptoms or have severe abdominal pain, nausea, vomiting, etc., the dosage can be reduced or discontinued. Meanwhile, patients are advised to take a low-fat, low-protein diet during the medication period, and avoid drinking alcohol or eating too much. Patients are advised to take Dachaihu Granules in strict accordance with the instructions or medical advice, avoid unauthorized use of medication, and stop the drug in time if abnormalities occur.