Due to the large number of aspirin dosage forms, only aspirin enteric-coated tablets are used here as an example, there are mainly gastrointestinal adverse reactions such as nausea, vomiting, abdominal pain, and some patients may have allergic reactions such as asthma and urticaria. Long-term or large doses can have gastrointestinal bleeding or ulcers, central nervous system damage, can also lead to liver and kidney function damage. Aspirin enteric-coated tablets are non-steroidal anti-inflammatory drugs, which can be used mainly for the prevention of transient ischemic attacks, myocardial infarction, atrial fibrillation, artificial heart valves, arteriovenous fistulae, or thrombosis after other surgeries, and can also be used for unstable angina pectoris. It is contraindicated in those with active ulcer disease or gastrointestinal bleeding, those with hemophilia or thrombocytopenia and those with a history of aspirin allergy. This drug is mainly taken with gastrointestinal reactions such as nausea, vomiting, abdominal pain, etc. Some patients may have allergic reactions with asthma, urticaria, angioneurotic edema or shock. It may cause gastrointestinal bleeding or ulcers when taken for a long period of time or in large quantities, and may also lead to central nervous system damage such as dizziness and tinnitus, as well as damage to liver and kidney function. Aspirin enteric-coated tablets are prescription drugs and must be used under the supervision of a doctor and taken in accordance with medical advice. If discomfort occurs after using the drug, you should seek medical advice.