Aspirin 0.25g a time to take a few capsules is not fixed, need to be based on the purpose of treatment. 1. If the patient is because of antipyretic, analgesic, take aspirin, then generally take 0.5g, take 0.5-2g a day, so according to the 0.25g of the dosage, a time of about 2 can be taken. 2. If the patient is taking aspirin because of anti-rheumatism, then take about 0.5-1g a day, 3-4g a day, you often need to take 2-4 capsules at a time. 3. If the patient is to inhibit platelet aggregation, anti-thrombosis to take aspirin, then the clinical often advocate the application of small doses, a time of about 75-300mg, then a time may only need to take 1 / 3 to 1.2 capsules of the amount of medicine. Therefore, 0.25g of aspirin patients need to take the exact number of doses, need to be determined by the doctor according to the patient’s condition. It should be noted that aspirin is prone to cause gastrointestinal discomfort, therefore, it is not recommended to take aspirin if the patient has gastrointestinal disorders, such as gastric ulcers or gastric bleeding. It is contraindicated in pregnant and lactating women. It is contraindicated in patients with hemophilia or thrombocytopenia. use of aspirin in patients with G6PD deficiency (serosanguinosis) can lead to hemolysis. Aspirin is contraindicated in patients who are allergic to aspirin. Patients who need to use aspirin need to follow the doctor’s instructions to avoid unauthorized use of medication.