The main difference between aspirin tablets and aspirin enteric-coated tablets is in two aspects. On the one hand, in terms of adverse reactions, aspirin enteric-coated tablets are less irritating to the stomach than aspirin tablets, and therefore have a lower incidence of causing adverse reactions such as nausea, vomiting and epigastric pain. On the other hand, in terms of drug dosage form, that is, in terms of the presence of the drug, aspirin tablets are covered with a common film coating, while aspirin enteric tablets are covered with an enteric film, the characteristic of the enteric film is that it does not dissolve in the stomach, but dissolves quickly in the intestine. The chemical name of aspirin is acetylsalicylic acid. It is easy to understand from the chemical name that this is an acidic drug, which is irritating to the stomach after oral administration. In order to reduce the irritation of the stomach, the outer layer of the drug is wrapped in an enterolysis film, so that the drug does not dissolve in the stomach, but dissolves quickly in the intestines and is absorbed by the intestines, thus reducing the irritation of the stomach, which also reduces adverse reactions.