The specific time to take aspirin is related to the specific dosage form, aspirin enteric-coated tablets are recommended to be taken orally before meals, regular tablets and extended-release tablets are taken after meals. Aspirin’s specific taking time and the specific dosage form have a direct relationship, aspirin enteric-coated tablets and enteric-coated capsules are recommended to be taken before meals, which can reduce the stimulation of the gastric mucosa. Aspirin regular tablets, aspirin extended-release tablets, it is recommended to take after meals. The main effect of aspirin is to inhibit cyclooxygenase, inhibit platelet aggregation by reducing thromboxane A2 in the body, mainly used in the treatment of ischemic cardiovascular and cerebrovascular diseases, such as coronary angina, cerebral infarction and so on. Adverse reactions of aspirin include stomach pain, gastric distension, gastrointestinal bleeding, skin mucosal bleeding, cerebral hemorrhage, etc. It is contraindicated for patients with aspirin allergy, aspirin-related asthma, active bleeding, active ulcers, and hemophilia. Clinical oral aspirin, be sure to use the drug under the guidance of a physician, to master the indications of the drug and the time to take the drug.