Side effects of Zuojin Pills are not clear. 1. Zuo Jin Wan is a yellowish-brown water pill with a peculiar odor and a bitter, pungent taste. The ingredients are composed of Rhizoma Coptidis and Cornu Cervi Pantotrichum. It has the efficacy of dispersing the liver, diarrhea, harmonizing the stomach and relieving pain. It is often used in the treatment of pain in the epigastric region, liver fire violating the stomach (the fire produced by the liver invades the stomach), bitter and noisy mouth (the stomach has a feeling similar to hunger, emptiness with burning), vomiting of sour water, and disliking of hot beverages. 2. Contraindications and adverse reactions (including side effects) are currently unknown. 3. Precautions are (1) Diet to avoid spicy, cold, greasy and other stimulating foods, avoid tobacco and alcohol, avoid anger, depression, maintain a relaxed mood, not applicable to those with spleen and stomach deficiency (spleen and stomach weakness and cold). (2) Patients with hypertension, diabetes, heart disease, kidney disease, liver disease and other chronic serious patients should take under the guidance of a physician. (3) Pregnant women, children, lactating women, the elderly and infirm should take under the guidance of a physician. (4) For severe stomach pain, if the symptoms are not relieved after taking the medicine for 3 days, the patient should go to the hospital for consultation. (5) Allergic persons are prohibited, allergic persons should be cautious of use, prohibited from use when there is a change in the properties, please consult a physician before using this product. Before using the drug, you should consult a physician and use the drug under the guidance of the physician, avoid purchasing and using the drug on your own, so as to avoid incorrect medication and delay the condition.