Sanhuang Tablets can be taken before and after meals. Sanhuang Tablets are sugar-coated tablets, showing brown color after removing the coating; bitter and slightly astringent taste. The main ingredients are rhubarb, berberine hydrochloride, scutellaria baicalensis extract. Excipients are starch, magnesium stearate. Sanhuang Tablet has the efficacy of clearing heat and removing toxins (removing heat and toxicity in the body), diarrhea and laxative, and is used for treating symptoms such as red and swollen eyes and pain, sores in the mouth and nose, sore throat, swollen gums, heartburn and thirst, and constipation with yellow urine and stools, etc., which are caused by the heat in Sanjiao (the heat in the chest and abdomen is more serious). Sanshuang Tablet is cold in nature, so it has some irritation to the gastrointestinal mucosa, so it can be used after meals to reduce some of the adverse effects of the drug. Three yellow tablets contain berberine hydrochloride. It should be used with caution in children, lactating women, the elderly and the weak, and those with loose stools (thin and unformed feces), and should be avoided during the period of consumption of smoking, alcohol and spicy food. It is contraindicated in pregnant women, patients with hemolytic anemia and glucose-6-phosphate dehydrogenase deficiency, as well as those who are allergic to the drug and its components. The drug should be used under the supervision of a specialized physician.