Sifuwan is a kind of compound Chinese medicine preparation, there are certain hazards in the process of using it, such as it is forbidden to be taken by people who are weak, have a weak spleen and stomach, have diarrhea, have external wind and cold, and pregnant women. It is mainly used for eliminating phlegm, food and gas, and also has some effect on constipation. The main ingredients contain rhubarb, pig’s tooth soap, petunia seed, aromatic herb, betel nut, and five lingzhi. One of the ingredients, betel nut, is a strong stimulant to the gastrointestinal tract. Although this drug is effective in relieving cough and resolving phlegm, the stimulation of the gastrointestinal tract is relatively large, so if symptoms of nausea, vomiting, abdominal pain, diarrhea occur, stop taking it in a timely manner and review it at any time.