Oral polyenophosphatidylcholine is usually a capsule preparation, and its contraindications include patients who are allergic to soy preparations, phosphatidylcholine, or allergic to any of the ingredients in the drug, and children under 12 years of age, etc. The main ingredient of polyenophosphatidylcholine is polyenophosphatidylcholine capsule. 1. The main ingredient of polyene phosphatidylcholine capsules is polyene phosphatidylcholine, excipients are hydrogenated castor oil, hard fat, ethyl vanillin, etc., which also contains some components of soybean oil, if patients who are allergic to soy preparations, phosphatidylcholine, or allergic to any of the components of the drug, it may lead to severe allergic reactions. 2. Polyene phosphatidylcholine capsules should not be used for children under 12 years of age, and even for children over 12 years of age, they should be used under adult supervision and in accordance with medical advice. 3. In addition, for safety reasons, polyenophosphatidylcholine capsules are generally not recommended for pregnant or lactating women. It is recommended to consult a doctor before taking polyenophosphatidylcholine capsules, and strictly follow the doctor’s instructions to take the drug, so as to avoid taking the drug privately, resulting in adverse consequences.